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Publication numberUS1299195 A
Publication typeGrant
Publication dateApr 1, 1919
Filing dateNov 29, 1916
Priority dateNov 29, 1916
Publication numberUS 1299195 A, US 1299195A, US-A-1299195, US1299195 A, US1299195A
InventorsJacob Kohn
Original AssigneeJacob Kohn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Lock.
US 1299195 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

J. KOHN,

LOCK.

APPLICATION man -ov.29.191e.

Patented Apr. 1, 1919.

/N VEN TUR W/ TNESSES."

l* UNITED sTaTEs PATENT OFFICE.

, JACOB KOI-IN, OF NEW YORK, N. Y.

LOCK.

Specicaton of Letters Patent.

Patented Apr. 1, 1919.

Apmication ined November 29, 191e. serial No. 134,019.

held against forcing or other unintentional opening. My improvements will be fully described hereinafter and the features of novelty will be pointed out in the appended claims.

In the accompanying drawings, which illustrate examples of my invention, Figure 1 isa face view of a lockwith parts broken away and in section; Fig. 2 is a sectional `view ony line 2-2 of Fig. 3; Fig. 3 is a sectional view on the line 3 3 of Fig. 1; Fig. 4 is a view similar to Fig. 2 but showing the `parts in another position; Fig. 5 is a sectional view on the line 5-5of Fig. 3; Fig. (l is a plan View with the door and part of the casing. in section; Fig. 7 is a sectional view on the line 7'-7 of Fig. 1; Fig. 8 is an edge view; Fig. 9 is an elevation of another form of my improved lock and Fig. 10 is a horizontal section thereof on the line 1(1)-10 of Fig. 9.

As shown by way of example in Figs. 1 to 8 inclusive the lock comprises a casing 11 preferably constructed of metal and having a back or cover 12 whereby the interior of said casing may be exposed, said back 12 being detachably secured in position for instance by means of screws 13 arranged to screw into internally screw-threaded posts or the like 14 located interiorly of said casing 11. A plate or slide 15 is located in said casing 11 and is formed with fianges 16 and .17 extending into contact with the fixed or front wall 11a of said casing, the flange 17 being located in engagement with the one end wall 11b thereof as shown in Fig. 6. The said plate or slide 15 is further provided with a projection 18 which contacts with the other end wall 11c and carries anupright rod 19 extending between two guide lugs 2O rigidly fixed in said casing, a coil spring 21 surrounding said rod 19 and having its one end in engagement with the projection 18 and its other end abutting against said lugs 20 or against a washer 22 interposed between .said spring and said lugs as shown in Figs.

2, 3 and 5. In addition to the above the plate or (slide 15 is constructed at its upper edge with flanges 22 and 24 extending therefrom 1n opposite directions preferably into contact respectively with the front wall 112L and the cover 12 of the casing. lVith the arrangement as described the plate or slide 15 is vertically movable in the casing 11 and is guided in its vertical movements by the* flange 17 and projection 18 in coperation with the end walls 11b and 11c and the rod 19 1n coperation with the. lugs 20. The

slide 15 is preferably further maintained in 4 and guided in a substantially fixed vertical path by means of the flanges 16, 23 and 24 in coperation with the front wall 11a and cover 12 as will be readily apparent, and is maintained in and returned to its initial position by means ofthe spring 21 and another spring 15*SLV coiled about a post 11d in the casing 11 and having its one end in engagement with the top wall of said casing and its other end resting upon the combined flan ges 23-24.

At its one end the plate 15 is continued in the form of a bolt 25 which extends beyond the casing 11 through a recess 11e formed in the end wall 11b andis provided at its free end with a transverse member forming a hook 26 as clearly shown in Fig. 6. In the illustrated example the locking mechanism fur ther includes an arm 27 rigidly connected with and projecting radially outward from a stem 28. and located beneath the flange 23 of the slide l5: the stem 28 is rotatably mounted in and extends through the wall 11"i of the casing 11 and either forms an integral part of or is connected with an actuating knob 29 vlocated exteriorly of said casspring being held between two lugs 33 in the casing 11 as shown in`Fig. 5. A second arm 34 is located beneath the flange 24 of the slide 15 and projects radially outward from a sleeve 35 rotatably mounted in the cover 12, suitable means being provided for' prevent-ing an axial movement of' said sleeve 35 relatively to the cover 12 as shown in Fig. 3. The said sleeve is formed with an axial opening 36 of angular cross-section the purpose of which will appear more clearly hereinafter. A suitable stop 37 located on the wall 11a of the casing 11 is provided for ar-- resting the movement of said arm 27 in one direction, in order to prevent an unintentional operation of the parts and a disarrangement thereof. f

The lock further includesa lever 38 having its one end pivotally connected with a pin 39 in the casing 11,said 4lever 38 extending adjacent to one faceof the' slide 15 and having its free end formed with a notch 40 adapted to receive a lug 41 carried by said slide 15 as shown in Fig. 1. The lever 38 is'controlled bymeans of a spring 42 tand.

under its influence is always pressed 1n a direction toward said lug 41 whereby a proper coperation between the latter and the notch 40 is always assured. The lever 38 is formed with an extension 43 which at its free end is provided with a finger 44 eX- tending transversely through an aperture 45 in the slide 15 and of sulicient dimensions to permit the parts to operate in the intended manner without interference. The finger 44 is constructed with an inclined surface 46l so arranged as to be common to the free ends of the arms 27 and 34 which are preferably rounded as shown in the drawings. In the normal position of the locking mechanism as shown Iin Fig. 1, which is the operative position, the coperation of the lug 41 and notch 40 will, through the medium of the lever 38 prevent the slide 15 and bolt 25 from being raised to an inoperative position.'

A second lever 47 has its one end pivotally connected with the pin 39 and depends therefrom adjacent to the other face of the slide 15 so that the latter is located ybetween the two levers 38 and 47 as is clearly shown in the drawings. The' lever 47 is provided at an intermediate point with a notch 48 which is adapted to coperate with'a lug 49 carried by the slide 15 to maintain the latter and with it the bolt 25 in a raised inoperative position, the notch 48 being somewhat larger than the lug 49 for the purpose to be more fully described hereinafter. Said lever 47 is also controlled by a spring 50 in such a manner that the lever is always.

pressed in a direction toward the lug 49 whereby the desired engagement of the notch 48 and lug 49 automatically takes place at the proper time. At its lower end the lever 47 carries a dog 51 pivotally connected at 52 and being free to pivotally move in one direction relatively to the lever 47 but having its relative pivotal movement in the opposite direction arrested by a stop 53 formed on said lever' at the proper point.

Any suitable means may be provided for maintaining the dog 51 in and for returning it to its normal posit-ion, as for instance a leaf spring 54 having its one end secured to the dog and its other end in engagement with a projection. 55 carried by the lever 47 as shown in Figs; 2 and 4. The lower portion ofthe dog 51 comprises a nose 51a which projects Abeyond the lower end of the lever 47 and normally extends into the path of a head 56 carried by a rod 57. The latter is slidably mounted in a stationary guide 58 in the casing 11 and is connected with or forms part of a plunger 59 slidably mounted inthe end wall 11b of said casing and projecting exteriorly beyond the same as shown in- Figs. 2, 4 and 5, said plunger preferably having its'outer end beveled as indicated at 60. A coil spring 61 surrounds the rod 57 with its one end in engagement with the guide 58 and its other end in contact with the plunger 59 and always tends to return said plunger to the normal position shown in Figs. 2, 4 and 5.

The bolt 25 is arranged to coperate with a keeper 62 having a vertically open recess 63 for the accommodation of said bolt and being further formed with a shoulder 64 behind which the hook 26 is located in the operative position of the locking mechanism. In addition to the above said keeper is provided with avcam surface 62a adapted to cooperate with the plunger 59 in a manner and for the purpose to be more fully set forth hereinafter. In the illustrated example the casing 11 is shown as secured by the lock for instance by means of screwsl 68.

When arranged as above described the lock or more specifically the slide 15 and with it the bolt 25 may be operated from the inside by means of the actuating knob 29. The manipulation of the locking mechanism means of key actuated mechanism which as illustrated in the presenty instancel includes a key plate 69 located upon the outside surface of the door 66 and a tumbler barrel 70 extending from said key plate into an aperture 71 extending transverselyt-hrough said door. Any suitable means may be employed for securing the key 69 and tumbler barrel 70 upon the door, as for insta-nce screws 72 extending through a plate 73 located at the inner end of the aperture 71 into screw threaded engagement with ears 74 formed on the tumbler barrel 70 as shown in Fig. 3. The latter, in the illustrated example, is opera tively connected with the locking mechanism by means of a connecting rod 75 of angular cross section which fits with the angular axial opening 36 of the sleeve 35 and which if de' from the outside is usually accomplished by may4 extend and whereby interference with" tion between the bolt 25 and the keeper 62 as is clearly shown in Fig. 6`.

If the door 66 is to be legitimately opened from the inside the actuating knob 29 rotated uponits axis and thus causes a`,corre sponding niovement of the stem 28 whereby the arm 27 v.is swung in the arc of a circle, the direction of rotation being such as to cause the free, preferably rounded *end .of said arm to bear against theunder side of the flange During this movementlof the arm 27 a'd'prior to itsvcontact with the flange 23 the free end of the arm engages the inclined" surface 46 of the-finger and exerts a camming action thereon. Through the mediulir of theextension 43 this brings about a pivotal movement of the lever 38 :in a direction to disengage the notch 40 from the lusr 41 so that the resistance to an upward movement of the slide 15 which is normally exerted by said lever 38 is removed. As the actuation of the arm 27 by means of the knob 29 is,A continued the free end of' said arm will finally exert anupward pressure upon the flange 23 and will thus raise the slide l5 and with it the bolt 25 and hook 26 'against the'tension of the springs 15 and 21. The upward movement of the slide 15 continues untilthe notch 48 of the second lever 47 snaps over the lug 49 as shown in Fig. 4 at which tiiz'ie the bolt 25 and hook 26 have.

'been moved completely out of the recess 63 keeper 62. The coperation of the notch 48 and lug 491,through the medium of the lever 47, servestomaintain the locking mecha` nism in itsinoperative position so that the door A66 may be freely opened without difficulty. scribed is ordinarily continued only until the bolt 251 is actually disengaged from the keeper, the arm 27 at this stage occupying a position inclined slightly to the left in Fig. 5 and at a distance from the stop 37 1f the described operation of the locking mechanism is not carried beyond the above indicated point, said mechanism will be automatically returned to its operative position in which the bolt 25 is located in the recess' 63 of the keeper 62 as soon as the door is closed.' This is accomplished in the follow- Th'e actuation of the knob 29 as de- P ing manner and by means of the following devices :-As the door 66 is moved toward its closed vposition the beveled end 60of the plunger 59 will finally engage the/cam surface 621l of the keeper 62 whereby'the plunger will be forced inwardly against the tension of the spring 61. As this happens the rod 57 and head 56 will besimilarly moved and the latter will engage the projecting nose 51l of the dog 51 and will exert a' pressure thereon toward the left in Fig. 4 thus -forcing said dog into contact with the projection 53 whereby said dog 51 and lever v4"( in effect become a rigid unit. The result of this operation is that the lever 47 is swung upon its pivot 39 in a direction to disengage Y \the notchv 48 from thelug 49. As'soon as this happens the slide 15 is free to again move downwardly and under thefinfluence of the springs 15and 21 .is returned to its initial operative position. The cam surface 62n and plunger 59 are so correlated 'that this return of' the slide, 15 does not take place i.

until the bolt 25 is in registry with the recess' 63 so that thevbolt 25 is thus automatically moved back into therecess 63 and the hook 26 behind the shoulder 64 of the `keeper62 whereby the door is again securely locked.

If it is desired to prevent this snapping of the lock or in other words to maintain the door 66 in an unlocked condition, the actuating knob 29 is given an eXtra turn to bring the arm-27 against the stop 37 vas shown in Fig. 5. In this position of the parts the arm 27 is located beneath the flange 23 in a position perpendicular thereto; thus even if the plunger 59 and its connected parts are actuated as the door is closed and the lever 47 is pivotally moved to disengage the notch 48 andlug 49 as previously described, this 'will have no effect and theslide 15 Vwill be maintained in itsv raised position by the arm 27. Owing to its position relatively to the iange 23 the tension of the springs 15a and 21 will have no effect to move the arm 27 or the slide 15 as will be obvious from an inspection of Fig. 5; the bolt 25 and hook 26 will thus be held in an inoperative position with respect to the keeper 62 so that the door 66 may be freely opened and'closed without difficulty i as long as the parts are in the described ositions. Owing to the fact that the notch 48 is slightly larger than the lug 49 .these elements do not interfere with the slight additional raising of the slide 15 asthe arm 27 is moved into contact with the stop 37.

When it is again desired to bring the locking mechanism to an operative condition the actuating knob 29 is actuated in a reverse Adirection to move .the arm 27 away from the stop 37 whereupon the springs 15 and 21 will return the parts to the normal operative positions. As soon as the arm 27 has'been moved out of the perpendicular the spring 32 will return it to its normal position so that only a slight initial movement of the arm 27 through the medium of the knob 29 is required to bring about the described operation. If at any time the head 56 is moved beyond the nos-e 51a of the dog 51 to the left in Figs. 2 and 4, for instance when the door is closed and the plunger 59 is pressed inwardly, the said dog will interpose no resistance to the return of the head 56, rod 57 and plunger 59 to their normal positions under the influence of the spring 57, owing to the fact that said dog 51 is free to move relatively to the lever 47 toward the right in said Figs. 2 and 4. In other words as the head 56 engages the nose 51a in a return movement the dog will simply be swung upon its pivot 52 without performino' any function.

o open the door 66 from the outside the proper key 77 is inserted into the key hole of the key plate 69 and rotated in the usual manner, which causes a rotation of the connecting rod 75 and a similar movement of the sleeve 35. As the latter is thus rotated about its axis the arm 34 will be moved in the arc of a circle, the direction of movement being such as to cause the free end of said arm 34 to travel toward the fiange 24. During this movement of said arm its free end will first engage and exert a pressure upon the inclined surface 46 of the finger 44 whereby the lever 38 is pivotally moved to disengage the notch and lug 41 and release the slide 15 in the same way as hereinbefore described. As the movement of the arm 34 is continued it will finally bear against the flange 24 from below7 and Y same whether the arm 2 will raise the slide 15 and bolt 25 and bring about anl operation of the coperating parts corresponding to the one brought about by the actuation of the arm 27 as hereinbefore set forth. The automatic return of the parts to normal position as the door is closed is vaccomplished in the same way as explained previously, or in other words the operation of the lockin mechanism is the 7 is operated by the knob 29 from the inside or the arm 34 is actuated by means of the key 77 from the outside. The slide 15 and its connected parts are also automatically returned to their normal operative positions through the medium of the plunger 59, it being understood that the locking mechanism is not intended to be fixed in a raised,l inoperative position from the outside although provision for bringing this about may be made if desired.

In the form shown in Figs. 9 and 1() I have shown the lock provided with a different form of bolt and keeper, adapted especially for locking doors which open outwardly, the casing 11 being connected to the inside surfaceof the door 66" as before while the keeper G2 is secured to the door casing 67:t in proper coperative location. In the illustrated example the bolt 25a is provided with a transverse number 26a which is continued in the form of a member 26b extending toward the lock in a direction substantially parallel with the bolt 25@l the members 26a and 26b forming a hook as shown in Fig. 10. In the form now being described the keeper 62b is provided with an upright member 64 corresponding in effect to the shoulder 64 and spaced from the keeper to form a vertically open recess 63a which in the present instance is also open at the ends as shown in Fig. 10.

Vhne the blot 25a is in its operative posi-A tion the member 26 will be located in the recess 63a while the member 2Gb will extend behind the upright member 64 of the keeper, or in the other words the hook formed by the members 2Ga and 2Gb will be in cooperative engagement with the shoulder formed by the upright member 64a. Vith the parts in this position it is obvious that the member 26h in coperation lwith the upright member 64 will prevent the door 66a from being opened outwardly and thus securely lock it in its closed position while the coperation of the member 26a with said member 64a will prevent any substantial movement of the edge al of the door 66a away from the edge b1 of'` the door casing 67a. In this form it is thus also absolutely impossible for instance t0 jimmy the door or to break the operative connection between the bolt 25a and the keeper 62", as will be clear from an inspection of Fig. 10. The mechanism for and method of operating the bolt 25l and its connected parts may be the same as described with respect to Figs. 1 to 8 inclusive.

It will be seen that in all of its forms my improved lock is extremely efficient in action and is proof' against any tampering whereby an illegitimate entrance through the door 36 or G6a may be effected. My improved lock may also be effectively used in connection with sliding or rolling doors as will be apparent from the drawings. The construction is extremely simple so that my improved lock, while it possesses a very high degree of efficiency, is not likely to become disarranged in use and may be produced at a relatively low cost.

Various changes in the specific forms shown and described may be made within the scope of the claims without departing from the spirit of my invention.

I claim 1. A lock comprising a casing, a slide movable rectilineally up and down therein, a bolt carried b v said slide so as to always project exteriorly of said casing, means movably connected with said casing for locking said slide against vertical movement, manually operated means for operating said 1,209,1es i vertically move said slide.

2. A lock comprising a casing, a slide movable rectilineally up and down therein,

a bolt carried lby said slideso as to always.

project exteriorly of said casing, a device pivotally mounted on said casing for locking said slide against upward movement, a

plurality of means operating independently of each other for moving said locking device to release said slide and for raising the latter, a second device independent of said rst device andpivotally mounted on said casing I' for maintainin `said vslide in its raise position, means or moving said second device to release'said slide and means formovin said slide downwardly, the upward and4 ownward movements of said slide being independent of said locking devices.

.3'. A, lock 'comprising a casing, a slide movable rectilineally up and down therein, a bolt carried by said slide so as to always project exteriorly of said casing,a first lever pivotally mounted in said casing, coperating means on said lever and slide whereby the latter is locked against upward movement, a plurality of independently operated means for moving said lever to release said slide and raise it, a second lever pivotally mounted in said casing, coperating means on said second lever and slide whereby the latter is held in a raised position, a plunger for moving said second leverto release said slide and a spring for movingsaid slide downwardly.

4. A lock comprising a casing, a slide vertically movable therein, a bo t carried by said. slide, horizontal anges extending in opposite directions from said slide, a pair of movable arms adapted to engage said flanges from below to raise saidV slide, a knob for actuatin one of said arms, key-actuated mechanism or actuating the other arm, a first lever pivoted in said casing, coperating means on said lever and slide wherebythe latter is locked a ainst upward movement, a device carried y saidlever adapted to be en aged by both of said arms whereby said ever is moved to release said slide prior to its upward movement, a second lever pivotally mounted in said casing, cooperating means on said second lever and A slide whereby the latter/is held in a raised position, a dog pivotally mounted upon said lever and freely movable relatively thereto in one direction but locked against movement in the opposite direction, a 4plunger adapted to engage said dog and move said second lever to vrelease said slide, and a spring for moving said slide downwardly.

. taining means.

A lock comprising a casin a slide vertically movable therein, a bo t carried by said slide, means` for raising said slide, means for temporarily maintaining said slide in its raised position, means for moving said maintaining means to release said slide and means for moving said slide downwardly, said slide raising means being movableto a position to fix said slide in its raised position independently of said main- 6. The combination of a door casing, a keeper connected therewith, a door hinged in said casing, a lock casing carried by said door, a bolt vertically movable in said casing and arranged to coperate with said keeper to lock the door, means for raising said bolt to disconnect it from said keeper, means mounted in said easing independently of said bolt for maintainin it in its raised position, a plunger mounte in said casing independently of said bolt for moving said maintaining means to release said bolt, means .connected with saidkeeper for actuat ing'said plunger as'the door is closed and means for moving said bolt downwardly.

7. The combination of a door casing, a keeper connected therewith, a door hinged in said casing, a lock casing carried by said door,v a bolt verticallymovable in said casing and arranged to coperate with said keeper to lock the door, means for raising said bolt tol disconnect it from said Ikeeper,

means for maintaining said bolt in its raised position, a plunger for moving said mainioo taining means to release said fbolt,imeans connected with said keeper for actuating said plunger as the door is closed and means4 for moving -said bolt downwardly, said bolt raising means being movable to a position to fiX said boltin its raised vposition independently of said maintaining means.

8. The combination of a casing, locking mechanism therein, a slide forming part of said locking mechanism movable thereby rectilineally'up and down in said casing, a bolt carried .by said slide and movable-therewith, a transverse member at the free end of said bolt and a second member at the end of said transverse member extending substantially parallel to said bolt.

9. The combination of a casing, locking mechanism therein, a slide forming part of y said locking mechanism movable. thereby rectilineally upand down in said casing, a substantially L-shaped bolt carried by said slide and movable therewith, and a keeper having a vertically open L-sh-aped recess adapted to receive said bolt. v

10. The combination of a casing, locking mechanism therein, a substantially U-shaped bolt connected withV said mechanism and comprising substantially parallel members and a transverse member connecting said parallel members, said bolt being vertically movable by said. meclianismin a linear directio1i,'and a keeper having an upright member adapted to extend behind the-transe verse member ofthe. bolt and into the space between the substantially parallel members thereof.

11. A lock comprising a casing, a bolt` movable therein to andfrom an operative position, means for locking said bo-lt in one of its positions, movable means for actuat ing said locking means to release said b olt and a dog operatively combined with said locking means and providing a rigid abutment against which said movable means impacts in its operative movement, said dog being movable relatively to said locking means to permit said movable means to move in a return directionl independently of and wit-hout actuating said locking means.

12. A lock comprising a casing, a bolt vertically movable therein, a lever tor maintaining said bolt in its raised position, adog pivotally vmounted on said lever and locked against relative movement thereto in one d1- rection and freely movable thereonv in the opposite direction `a,plunger and means.

operatively connected with sai plunger and arranged to engage said dog whereby said lever is actuated to release said bolt as s aid plunger is moved inwardly, said dog being moved on its pivot relatively to said lever by said plunger whereby the latter is permitted to move in a return direction independently of vsaid lever.

` 13. A lock comprising a casing, a bolt slidable rectilineally up and down therein and always projecting' exteriorly beyond said casing, means independent 'ot said bolt for locking it in its operative position, a projection operatively connected with said locking means and having an inclined surface and means in said casing arranged to engage said inclined surface whereby said locking means is actuated t0 release said bolt.

14. A lock comprising a casing, a bolt movable rectilineally up and down therein and always projecting exteriorly beyond said casing, a lever pivotally connected with the casing Vfor locking said bolt in its operative position, a pro]ection carried by said leverand having an inclined surface and key controlled and manually controlled arms in said casing common to said projection and each arranged to engage said inclined surface tc actuate said lever and release said bolt.

l5. The combination of adoor casing, a keeper connected therewith, a door movably mounted in said casing, a lock casing carried by said door, a bolt movable rectilineally up and down in said casing and always projecting exteriorly beyond the same and cojecting exteriorly beyond the casing, col operating means .on said levers and slide whereby the latter is locked respectively in its raised and lowered positions, means for actuating one of said levers to release said slide :for movement in one direction and independent means for actuating the other lever to release said slide for movement in the opposite direction.

17. The combination of a casing, locking mechanism therein, a. slide forming art of said mechanism and movable thereby rectilineally up and down in said casing, a bolt carried by said slide and' movable therewith, said bolt having a portion located exteriorly of said casing in all positions of said bolt, a projection located exteriorly ofsaid casing atthe free end of said bolt and exl tending transversely to the direction of movement off said bolt and slide and means whereby said locking mechanism is actuated. y 18. The combination of a casing, a slide vertically movable therein, a bolt carried by said slide, a pair of flanges projecting from said slide in opposite directions transverse to its plane of movement, pivoted arms located on opposite sides of said slide and movable beneath and into engageir ent with said flanges whereby said slide and bolt are raisedand inc lepe'ndent` means for individually actuating each arm.

19. The combinationl of a casing, a slide vertically movable therein, a bolt carried by e said slide, a flange pro3ecting from said slide in a direction transverse to its plane of movement, va lever for locking saidslide against upward movement, an arm located in proximity to a major surface of said slide and ar ranged to actuate said lever to lrelease said slide and movable beneath and'into engagement with said fiange whereby said slide and bolt are raised and means for actuatingy said arm.

In testimony whereof I have hereunto set my hand. 'Y

JACOB KOI-IN.

iio.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4262504 *Dec 5, 1977Apr 21, 1981Alps Electric Co., Ltd.Locking device
US4363227 *May 14, 1980Dec 14, 1982Lo Jiung P EngDoor lock construction
US6578888 *Jun 21, 2000Jun 17, 2003Tesa Entry Systems Inc.Mortise lock with automatic deadbolt
US7399009 *Aug 18, 2004Jul 15, 2008Southco, Inc.Load floor latch
US20050140150 *Aug 18, 2004Jun 30, 2005Matthew HallLoad floor latch
Classifications
U.S. Classification70/157, 292/335, 346/91, 70/100, 346/87, 292/333
Cooperative ClassificationE05B63/20