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Publication numberUS1698087 A
Publication typeGrant
Publication dateJan 8, 1929
Filing dateJan 22, 1923
Priority dateMar 20, 1922
Publication numberUS 1698087 A, US 1698087A, US-A-1698087, US1698087 A, US1698087A
InventorsEgbert R Field
Original AssigneeEureka Vacuum Cleaner Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Coupling for vacuum cleaners
US 1698087 A
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Description  (OCR text may contain errors)

Jan. 8, 1929. 1,698,087

E. R. FIELD COUPLING FOR VACUUM CLEANERS Filed Jan. 22, 1923 Patented Jan. 8, 1929.

UNITED STATES PATENT OFFICE.

EGBERT R. FIELD, OF DETROIT, MICHIGAN, ASSIGNOR TO EUREKA VACUUM CLEANER COMPANY, 01 DETROIT, MICHIGAN, A CORPORATION OI MICHIGAN.

COUPLING FOR VACUUM CLEANERS.

Original application filed March 20, 1922, Serial No. 454,060. Divided and this a 1923. Serial No. 614,326.

The invention relates to vacuum cleaning apparatus and has for its object the provision of a simple construction of coupling for securing the bag to the discharge of the fan casing, which permits of quickly securing or Figure 3 is atransverse section through the discharge of the fan casing and the coupling;

Figure 4 is a perspective view of a portion.

of the coupling.

The vacuum cleaner in the present instance has the motor casing 1, the fan casing 2 and the suction tool or nozzle 3 and is supported by the rolls 4 near opposite ends of the suction tool, and the castor wheel 5 near the rear end of the motor casing.

For detachabl securing the dirt retaining bag 6 to the tu ular outlet or discharge 7 of the fan casing 2, I have provided a coupling having a snap look. In detail, 8 is a tubular coupling member secured to the inlet end of the bag and adapted totelescopically engage over the tubular discharge 7 of the fan casing. This tubular coupling member has the annular outwardly extending bead 9 in its periphery forming in its inner face an annular groove adapted to receive the securing device 10 which is in the form of aresilient wire normally occupying the annular groove so that it will not interfere with the telescopic movement of the coupling member over the discharge. The bead has in its periphery the spaced apertures 11 as well as the zig-zag aperture 12, the latter having circumferentially extending end slots with laterally ofiset adjacent ends which-are connected by a transverse slot. The wire 10 has outwardly bent ortions 13 engaging in the apertures 11 and also has outwardly extending arms 14 and 15 engaging respectively in the near its end in which the wire 10 pplicetion filed January 22,

end slots of the zig-zag aperture 12 so that accidental disengagement of the wire from the tubular coupling member is prevented. One end 16 of one of the end slots of the zig zag aperture is enlarged to permit of the passage of the heads 17 and 18 uponthe ends of the arms 14 and 15 respectively to manually engage or disengage the wire with or from' the tubular coupling member. The tubular" discharge 7 of the fan casing is provided with: the annular roove 19 in its outer periphery is engageable when the latter is contracted to thereby secure the tubular coupling member to thetubular discharge.

To hold the wire in contracted position, the heads 17 and 18 interlock after they have been forced past each other to a position such as shown in Figure 4, the arms of the wire being resilient to permit of manual movement of these heads past each other to this osition. The shoulders 20 and 21 formed by t 1e edges of the transverse slot of the zig-zag aperture 12 engage the arms 14 and 15 respectively of the wire when the heads are interlocked to prevent further movement of the arms and further contracting movement of the wire. When the wire is in engagement with the annular groove of the tubular discharge its outwardly extending bends are still in engagement with their respective apertures of the tubularfcoupling member so that the bag is firmly secured to the discharge of the fan casing.

From the above description, it will be readily seen that I have provided a-simple construction of coupling for securing the bag to the fan casing, this coupling being so constructed that the bag may be quickly removed from or secured to the fan casing. Also, that the coupling has a snap lock which may be easily operated.

What I claim as my invention is: v

1. A coupling for vacuum cleaners including the discharge tube of the fan casing having an annular groove in its periphery nea r its outer end, a tubular coupling member telescopically engageable over said discharge ner eri her ando enin s into said roove lce tube and having an annular groove in its in-- her engageable in the groove in said coupling member and havinga projection extending through one of the'openings therein and cooperating ends extending through another 0 the openings therein, said securing member being normal y expanded and housed within the groove in the coupling member but being contractible to engage in the annular groove in said dischar e tube and having its cooperating ends a apted to yieldably interlock with each other when in contracted position.

ing the tubular discharge of the fan casing, and an annular groove in the periphery of said discharge near its outer end, a coupling member telescopically engageable over said discharge and having an annular groove in its periphery with openings into said groove, one of said openings having a zig-zag shape, and means for securing said coupling member to said discharge comprising a resilient member engageable in the groove in said coupling member and having a projection extending through one of the Openings therein, and cooperating ends extending through the zigzag opening therein, said securing member being contractible. to engage in the annular groove in said discharge and having its cooperating ends adapted to yieldably lock with each other when in contracted position, the shoulders formed upon said zig-zag opening limiting the movement of the cooperating ends of said securing member when locked with each other.

3. A coupling for vacuum cleaners including a disc arge tube of the fan casing, a band telescopically engageable with. said discharge tube, a hollow head on said band, a

- contractible member within said bead con tractible to grip said discharge tube, a plurality of projections on said member adapted to reject through the outer'wall of the said hollow bead when the said. member is contracted to prevent relative longitudinal movement of the band with respect to said discharge tube, additional projections on said member adapted to project through the outer wall of the hollow bead, heads on said'last mentioned projections adapted to be interlocked for holding said member contracted I and means formed in the wall of said bead for guiding said heads into inter-locking engagement.

4. The combination with a discharge tube of a vacuum cleaner and a dirt retaining bag,

of means for attaching the bag to the tube,

said means including a band secured to the.

bag and surrounding the discharge tube, said band having a zig-zag slot and an opening therein, and a member surrounding said discharge tube within said band adapted to grip said discharge tube, said member having a portion projecting through said opening and having members projectin through said slot adapted to be interlocked or holding the member aforesaid in gripping engagement with said tube. V

5. The combination with a discharge tube of a vacuum cleaner and a dirt retaining bag, of means for attaching the bag to the tube, said means including a band secured to the bag and surrounding the discharge tube, a resilient member surrounding said discharge tube within said band adapted to be contracted to grip said discharge tube, said member "having cooperating interlocking ends pro- 2. A couphng for vacuum cleaners II1Clud -jecting through a slot in said band, and means associated with said slot for limiting the contracting movement of said resilient member.

6. The combination with a discharge tube of a vacuum cleaner and a dirt retaining bag, of means for attaching the bag to the tube, said means including a band secured to the bag and surrounding the discharge tube, said band being provided with relatively ofiset slots, a resilient member surrounding said discharge tube within said band ada ted to be contracted to grip said discharge tu e, said member having cooperating interlocking ends projecting through and operable in said slots respectively.

7 The combination with a discharge tube of a vacuum cleaner and a dirt retaining bag, of means for attaching the bag to the tube,- said means including a band secured to the bag and surrounding the discharge tube, said band being provided with ofiset slots, a resil ient member surrounding said discharge tube within said band adapted to be contracted to grip said discharge tube, said member having cooperating interlocking ends projecting through and operable in said slots respectively, and means associated with said slots for limiting the contracting movement of said resilient member.'

8. A coupling for vacuum cleaners including a discharge tube of a fan casing provided with an annular recess in its outer periphery adjacent its end, a tubular coupling member telescopically engageable with said discharge tube to surround the end portion thereof, said tubular couplin memberprovided with an annular outwar ly extendlng bead adapted.

to register radially with the said recess, said bead havlng a pair of openings, a resilient clampin member surrounding said dischargetube an adapted in its unclamped position tolie within the bead whereby said coupling,

member and discharge tube may be freely relatively longitudinally moved into said telescoped position, means whereby said resilient clamping member may be contracted to relative longitudinal movement of the discharge tube and coupling member is prevented.

9. A coupling for vacuum cleaners including a discharge tube of a fan casing provided with an annular recess in its outerperiphery adjacent its end, a tubular coupling member telescopically engageable with said-discharge tube to surround the end portion thereof, said tubular coupling member provided with an annular outwardly extending bead adapted to register radially with the said recess, said bead having a pair of openings, a resilient clamping member surrounding said discharge tube and adapted in its unclamped position to lie within the bead whereby said coupling member and discharge tube may be freely relatively longitudinally moved into said telescoped position, means carried by the clamping member extending radially through one of said openings for contracting said resilient clamping member to move the same radially inwardly for clamping engagement in the said annular recess and for looking said member in its contracted position sald resilient clamping member being provided with a portion return bent radially to extend outwardly through the other of said openings, said return bent portion being engageable in its said contracted position, with one of the openings in the said bead whereby relative longitudinal movement of the discharge tube and coupling member is prevented.

10. The combination with the discharge tube of a vacuum cleaner and a dirt retaining bag, of means for attaching the bag to the tube, said means including a band secured to'the bag and surrounding the discharge tube, a contractible member surrounding said discharge tube and carried by said band, interlocking projections carried by said member for locking the said member in contracted position and means on said band for guiding said projections into interlocking engagement with each other.

11. The combination with the discharge tube of a vacuum cleaner, and a dirt retaining bag, of means for attaching the bag to the tube, said means including a band secured to the bag and surrounding the discharge tube, a hollow head on said band, a contractible member arranged within said hollow bead and surrounding said discharge tube, interlocking projections on said contractible member for locking the same in contracted position, and shoulders on said bead arranged to guide said projections into interlocking engagement with each other.

In testimony whereof I afiix my signature.

EGBERT R. FIELD.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2440452 *Mar 2, 1944Apr 27, 1948Oilfields Service CoQuick action coupling
US2696517 *Feb 12, 1949Dec 7, 1954Breeze CorpDisk type shield coupling
US2722285 *Aug 20, 1953Nov 1, 1955Hoover CoFilter assembly for suction cleaners
US2895565 *Dec 6, 1956Jul 21, 1959Le Brun George KFilter
US2950132 *Nov 14, 1957Aug 23, 1960Kocsuta MichaelThreadless pipe coupling having a split ring locking means
US3985458 *Apr 21, 1975Oct 12, 1976Roberts Industries, Inc.Locking device
US4480530 *Jun 28, 1982Nov 6, 1984Aeroquip CorporationFor vehicles
US4923272 *Oct 3, 1988May 8, 1990Joseph CudaFiber optic connector
US6843612 *Feb 28, 2002Jan 18, 2005Spx CorporationRetaining ring apparatus and method
US7328491May 5, 2005Feb 12, 2008Walsh Lawrence MGate mate
US7938455 *Jul 6, 2007May 10, 2011Robert Bosch GmbhDevice for axially connecting an external pipe section to a coaxial peg or an internal pipe section that engages in said section
Classifications
U.S. Classification55/377, 285/321, 403/326, 174/21.0JS, 55/DIG.260
International ClassificationA47L9/14
Cooperative ClassificationA47L9/1427, Y10S55/26
European ClassificationA47L9/14D