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Publication numberUS2710035 A
Publication typeGrant
Publication dateJun 7, 1955
Filing dateMay 26, 1954
Priority dateMay 26, 1954
Publication numberUS 2710035 A, US 2710035A, US-A-2710035, US2710035 A, US2710035A
InventorsHarold Plummer
Original AssigneeHarold Plummer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable garbage disposal machine
US 2710035 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

June 7, 1955 H. PLUMMER 2,710,035



June 7, 1955 H. PLUMMER PORTABLE GARBAGE DISPOSAL MACHINE 2 Sheets-Sheet 2 Filed May 26. 1954 INVENTOR.

United States Patent 2,710,035 PORTABLE GARBAGE DISPOSAL MACHINE Harold Plummer, La Jolla, Calif. 7 Application May 26, 1954, Serial No. 432,504

9 Claims. (Cl. 146192) v This invention relates to a portable form of. electrical garbage disposal machine, which may be used without any change being made to the existing plumbing and may be removed at will by the owner.' The machine is so constructed, that it may also be used for the shredding, slicing and mincing of various food products, used in making salads, cakes and other food products. The cutting unit may be quickly disconnected and the remaining portion can then be used for variouscleaning and polishing operations, such as dirty kitchen utensils, shoe cleaning or automobile cleaning and polishing; and may also be used for drilling, grinding and sanding, when special attachments are furnished.

Other purposes will appear from time to time in the course of the specification and claims.

My invention is illustrated in the accompanying drawings wherein,

Figure l is a vertical sectional view of the shredding, cutting and mincing unit, connected to a flexible drive shaft and motor.

Figure 2 is a plan view on reduced scale of this same unit.

Figure 3 is a bottom view on a reduced scale of the shredding unit, taken on line 33 of Figure l, the arrow head indicating the direction of rotation.

Figure 4 is a cross sectional view on reduced scale taken through line 4--4 of Figure 1, showing the propeller and material flow guide and cutting plate, the arrow head indicating direction of rotation.

Figure 5 is a cross sectional view on reduced scale on line 55 of Figure 1, showing the upper layer of razor blades and clamp plates and also shows the square drive bushing seal and driving pin.

Figure 6 is a sectional view on line 66 of Figure l, to show more clearly the flow and cutting action, in the first three cutting stages.

Figure 7 shows the machine with the cutting assembly removed and the shaft connected to a polishing wheel.

Figure 8 shows the machine with an electric motor and speed reducing gear box, direct connected to the garbage disposal or mincing unit.

Figure 9 is a side view on reduced scale of a lower clamp plate.

Figure 10 is a plan view on reduced scale of a lower clamp plate.

Figure 11 is a plan view on reduced scale of an upper clamp plate.

Referring to the drawings, 10 is an electric motor with switch 11 and flexible cable 12 containing current supply wires. Motor 10 is suspended from the wall, or a body belt, by means of bracket 13 and drives a flexible shaft 14, which has a squared end 15, at the end of the internal drive shaft, engaging with a slot or squared hole in the intermediate drive shaft 16. Intermediate drive shaft 16 rotates in cover 17 and is held in place by means of the thrust collar 18 and thrust collar cap 19. A square tubular coupling 20 is used to connect the cutting unit shaft 21 to the intermediate drive shaft 16. Shaft 21 rotates in a stationary cylindrical housing 22, which has a double seal ball bearing 23 for shaft support. A rubber seal .24, is used to prevent any leakage of water from the lower cutting chamber 25, to upper dry chamber 26 and also to prevent any possible leakage of water to ball bearing 23. On shaft 21, a squared or splined drive bushing 30 is mounted, which is slotted and driven by means of pin 31, a part of shaft 21. Drive bushing 30 has a squared or splined section 32, which drives upper razor blade clamp plates 33 and lower clamp plates 34. Each lower clamp plate 34 locates and drives razor blades 35 by means of drive pins or keys 36 two of which pass through each blade. ,End of drive bushing 30 is threaded and a cutting propeller 37 is tapped and screwed on to said threaded end as a nut, to keep all razor blades 35 and clamp plates 33 .and 34, secure and in place, the direction of the threadbeing such that it is self locking. Immediately below the cutting propeller 37 there is a material flow guide plate38 which has cutting edges on the underside and is station ary, being secured to housing 22 by screws 39. "Guide plate 38 has a bushing 40, which acts as a bearing for the lower end of the cutting assembly. In the boss of the cutting propeller 37, there are four driving pins 41, which drive the small center shredding plate 42 and also the main shredding plate 43. The purpose of the center shredding plate 42, is to drive the material from the center out, into the main shredding plate, which is provided with several projecting cutting receptacles 44. Fillister head screw 45 is used to secure the whole shredding and cutting assembly, to the cutting unit drive shaft 21, the shaft being tapped in the center to receive screw 45. On the peripheral face of housing 22, a ring 46 of plasticmaterial, is cemented to form a piston or plunger, which slides in a cylinder or garbage container cup 47. To use the machine the garbage or other material to be ground is placed in the bottom of cup 47 and motor 10 started. Housing 22 and its associated shredding and cutting mechanism is then lowered into container 47, the cutters 44 shredding the material and, in association with flow plate 38 and cutting propeller 37, forcing the material from chamber 25, through the cutting elements and discharge holes 48 into discharge chamber .49, formed by external duct 50, which carries the material downward through the drying frame 51 into the sink drain. Stop pins 27 engage one or more of the spaced apart wires composing frame 51 and are used to prevent rotation of garbage container cup 47.

When the machine is required for such purposes as cleaning and polishing or sanding and grinding, cover 17 is removed from the shredding and cutting assembly by giving said cover a partial turn so that the heads of shouldered studs 52 may pass through an enlargement in slots 53 formed in cover 17. Motor 10 and drive shafts 14 and 16 are then ready to receive an adaptor bushing 54, held in place by screw 55, a rubber disc 56 being also added on which is tied a sheep skin polisher 57. If the machine is to be used for sanding, sand paper may be clamped in place against disc 56 by means of washer 58. Or an emery wheel may be used in place of disc 56 for grinding purposes, or a drill chuck may be added for drilling purposes.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A garbage disposal machine comprising; a garbage container having a cylindrical interior wall; a plunger slidable along said wall; a rotary shaft supported by said plunger and coaxial therewith; means for connecting the top of said shaft to an electric motor; a plurality of razor blades connected to said shaft for rotation therewith; a plate secured to said plunger below said blades,

Patented June 7, 1955.

said plate having a plurality of channels therethrough arranged to cut and convey shredded garbage up toward said blades; and a plurality of shredding blades secured to the lower end of said shaft arranged to shred the top portion of the garbage and direct it up into said channels.

2. A machine as claimed in claim 1, in which the top end of said shaft is provided with a sleeve having a socket adapted to receive the lower end of an intermediate shaft; and means connecting said intermediate shaft to an electric motor.

3. A machine as claimed in claim 1, in which the intermediate portion of said shaft is provided with a plurality of spaced apart plates for receiving the razor blades therebetween and means projecting from said plates arranged to hold and drive the blades.

4. A machine as claimed in claim 1, in which the top portion of said plunger is provided with a depending thin cylindrical wall partly surrounding and spaced outwardly from said garbage container to provide a duet to convey finely cut garbage leaving the top of said garbage container downwardly.

5. A machine as claimed in claim 1, in which the top end of said plunger is provided with a cover; an intermediate shaft journaled in said cover; a flexible shaft having one end detachably connected to the top of said electric motor.

6. A machine as claimed in claim 1, in which said plunger is used for manual force feeding of the garbage to an outer discharge duct.

7. A machine as claimed in claim 1, in which a cutting propeller is mounted above said plate to cut and mechanically force feed the garbage to the razor blades.

8. A machine as claimed in claim 1, in which a cutting propeller is rnounted above said plate to first suck and then mechanically force feed the garbage from the container to an outer discharge duct.

9. A machine as claimed in claim 5, in which said cover is readily detachable from the plunger.

References Cited in the file of this patent UNITED STATES PATENTS 1,422,391 Trust et a1. July 11, 1922 2,246,054 Marty June 17, 1941 2,501,524 Jones Mar. 21, 1950 2,655,354 Murray Oct. 13, 1953 2,666,281 Tocci-Guilbert Jan. 19, 1954 FOREIGN PATENTS 752,176 France July 10, 1933 275,121 Switzerland July 16, 1951

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1422391 *Sep 18, 1919Jul 11, 1922Meteor Mixing Machine Co IncFood machine
US2246054 *Feb 21, 1939Jun 17, 1941Marty John MFood cutter
US2501524 *Dec 8, 1948Mar 21, 1950James ShapiroSanding attachment for electric motors
US2655354 *Aug 29, 1947Oct 13, 1953Pollard & JohnstonMixer and processor for home use and the like
US2666281 *Mar 11, 1950Jan 19, 1954Berne Tocci GuilbertBack pad
CH275121A * Title not available
FR752176A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3443764 *Jun 6, 1966May 13, 1969Wetzel Ray CFood-waste disposal apparatus
US3726487 *Apr 5, 1971Apr 10, 1973Cenco Medical Health Supply CoHomogenizer shearing assembly apparatus and process
US5346143 *Jul 14, 1993Sep 13, 1994Crisafulli Pump Company, Inc.Fish mincer pump
US8562287 *Mar 29, 2010Oct 22, 2013Zoeller Pump Company, LlcGrinder pump
US20100322756 *Mar 29, 2010Dec 23, 2010Schmidt P E WilliamGrinder Pump
DE1262742B *Dec 24, 1965Mar 7, 1968Erich BlattertSchneidmuehle zur Kunststoffzerkleinerung
U.S. Classification241/58, 241/46.17, 241/296, 241/246, 241/162, 241/157, 241/101.1
International ClassificationA47J43/04, A47J43/044
Cooperative ClassificationB02C18/0092, A47J43/044
European ClassificationB02C18/00W2, A47J43/044