US3629892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet sweeper
Assignee: Brush Co Ltd
•
Filing: 1970-05-20
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Granted: 1971-12-28
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Expires: 1990-05-20
Abstract
Abstract A carpet sweeper in which the trays which receive the material swept up by a central brush are themselves hinged and carry the wheels and a comb which contacts the brush to ensure effective removal, a feature being that as the trays together with the wheels move clear of the brush for discharging of the materials much more ready and effective cleaning as well as collection of the materials is possible.
Inventors
- 👤 Donald N Smyth
- 👤 Bruce A G Heard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:43
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4091; A47L11/32; A47L11/33; A47L11/4013; A47L11/4025; A47L11/4036; A47L11/4041; A47L11/4063; A47L11/4069; A47L11/4072; A47L11/4075
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A carpet sweeper comprising a hollow body member, a brush rotatably carried transversely and substantially medially in the body member, and having driving rollers thereon, a handle mount on the body member, trays hinged to the body member along outer transverse edges of the body member and facing inwards to terminate adjacent the said brush to receive materials gathered by the brush, and wheels carried by the said trays located such that when the trays are in collecting position the wheels contact the said driving rollers on the said brush and rotate it as the sweeper is moved but move away from the brush when the trays are opened for cleaning.
Claim 2
Dependent Claim
111 words
A carpet sweeper comprising a hollow body member, a brush rotatably carried transversely and substantially medially in the body member, and having driving rollers thereon, a handle mount on the body member, trays hinged to the body member along outer transverse edges of the body member and facing inwards to terminate adjacent the said brush to receive materials gathered by the brush, and wheels carried by the said trays located such that when the trays are in collecting position the wheels contact the said driving rollers on the said brush and rotate it as the sweeper is moved but move away from the brush when the trays are opened for cleaning.
Claim 3
Dependent Claim
78 words
A carpet sweeper according to claim 1 characterized in that the trays carry on them in the path of the rotating brush a pair of combs one on each tray, so positioned when the brushes operate in one direction the combs receive from the brush, such material as is swept up by the brush but on a reverse rotation of the brush the combs are oppositely swept by the brush to deposit the swept materials into the trays.
Claim 4
Dependent Claim
86 words
A carpet sweeper according to claim 1 characterized in that the body has sockets along the forward and rear edges in relation to the direction of movement to the sweeper, and in that attachment members on the trays engage the sockets to lock the trays to the body, said attachment members and trays being constructed of resilient plastic material having thin sections between them to form hinges, said attachment members having tabs on them adapted to lock in the sockets of the body when engaged therein.
Claim 5
Dependent Claim
32 words
A carpet sweeper according to claim 1 characterized by flanges at each end of the trays between which wheels are accommodated, the axles of which wheels engage apertures in the said flanges.
Claim 6
Dependent Claim
84 words
A carpet sweeper according to claim 1 wherein the trays carry combs positioned in the path of the bristles of the brush, said combs being backed by flanges forming an inner boundary to the tray whereby materials swept by the brushes over or on to the flanges are deposited in the tray or caught on the comb teeth attached to the flanges, whereby on reversal of rotation of the brushes, materials caught on the comb teeth are brushed over the flanges into the tray.
Claim 7
Dependent Claim
62 words
A carpet sweeper according to claim 1 wherein the trays carry both the wheels and the combs remotely of the attachment members so that when the trays are positioned to discharge materials deposited by the brushes, the wheels and combs are positioned remotely of the brush to allow ready cleaning of the combs and to facilitate removal of the brush for cleaning.
Claim 8
Dependent Claim
51 words
A carpet sweeper according to claim 1 wherein the actuation of the trays is by means of release levers carried by body-engaging members which themselves have operating links engaging tabs formed on the trays remote from the hinges of the attachment members which hingedly couple the trays to the body member.
Claim 9
Dependent Claim
86 words
A carpet sweeper according to claim 7 wherein the release members and the operating links and the tabs are formed from plastic mouldings with thin sections between the release levers and the operating links, and between the tabs and the operating links, and wherein the release levers have trunnions which engage a central strip on the body, and wherein the release levers are positioned to normally hold the trays in their closed position where the combs on the trays are in the path of the brush.
Claim 10
Dependent Claim
30 words
A carpet sweeper according to claim 1 wherein the body member has engaged over it a surround of resilient plastic material to provide buffer means during operation of the sweeper.
Claim 11
Dependent Claim
84 words
A carpet sweeper according to claim 1 wherein the handle mount has a follower at each end engaging a slide in a support member adapted to be engaged in apertures in the body member, said follower having a pair of cams integral therewith which engage a part on the said support member to cause the follower to maintain contact with the slide when a handle engaged in a socket on the handle mount is swung from a position of rest to an operative position.
Claim 12
Dependent Claim
59 words
A carpet sweeper according to claim 1 wherein the said body member has apertures near each end which engage two support members arranged one at each end of the handle mount, said support members engaging said body and being held thereto, and clips on the support members to lock the support members in the apertures of the said body.
Claim 13
Dependent Claim
72 words
A carpet sweeper according to claim 1 wherein the body member has a central longitudinal aperture, and a central strip adapted to be engaged in said aperture, said central strip carrying spring loaded release levers and operating links coupling to the trays remote from their hinging means whereby manipulation of the said release levers opens and shuts the said trays for respective cleaning or receiving matter swept thereinto by the said brush.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |