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US4384383A Expired / Lapsed US ⏱️ 0.0 years remaining

Push-type broom

Assignee: Rubbermaid Cleaning Products Inc
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Filing: 1981-12-28
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Granted: 1983-05-24
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Expires: 2001-12-28
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Abstract

Abstract A push-type sweeping broom having a handle with a connector end terminating in a reduced-diameter threaded section and a broom block, preferably of molded plastic material, with a raised inclined mound on the upper surface thereof surrounding a blind bore adapted to receive the connector end of the handle. The bore has an upper portion and a lower portion, the lower portion being of reduced diameter in comparison with the upper portion and having threads on its walls. The connector end of the handle is inserted into the bore until the threaded terminal section thereof engages the threaded lower portion of the bore, and the handle is then tightly screwed into the bore, with the upper portion of the bore and the surrounding mound snugly receiving and supporting a portion of the connector end of the handle. The broom block has a plurality of discrete groupings of bristles distributed across its lower surface.

Inventors

  • 👤 William C. Bryant

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 02:30
CPC Classifications
A; A46; A46B; A46B5/00; B; B25; B25G; B25G3/00; B25G3/02; B25G3/12; B25G3/30; A46B2200/00; A46B2200/30; A46B2200/302

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 313 words
A push-broom for sweeping hard horizontal surfaces, comprising: (a) an elongated handle having a grasping end and a connector end, said connector end having a terminal section of reduced diameter a shoulder being located between the connector end of the handle and the reduced diameter terminal section, said terminal section provided with male threads on the surface thereof; (b) a block having an upper surface and a lower surface, said upper surface having a pair of lateral edges, said lower surface having affixed thereto a plurality of groupings of bristles extending away from the lower surface; (c) a raised inclined support mound situated on and integral with and in one piece with the upper surface of the block, said mound having an axis of symmetry approximately perpendicular to one of the lateral edges of said upper surface and defining an oblique angle with the plane of said upper surface; and (d) a rectilinear blind bore running axially through the mound and extending below the upper surface of the block, said bore comprising an upper portion and a lower portion with a diameter less than that of said upper portion, said lower portion having walls provided with female threads adapted for detachable screw engagement with the male threads on the terminal section of the handle, said bore being adapted for receiving the connector end of the handle with the terminal section of the connector end threadedly engaging the lower portion of the bore and with the upper portion of the bore encircling and supporting a portion of the connector end of the handle situated above the reduced terminal section thereof said shoulder abutting against a seat in the bore situated below the upper surface of the block and with a lower part of the supported portion of the connector end of the handle being situated as well below the upper surface of the block.
Claim 2
Dependent Claim 313 words
A push-broom for sweeping hard horizontal surfaces, comprising: (a) an elongated handle having a grasping end and a connector end, said connector end having a terminal section of reduced diameter a shoulder being located between the connector end of the handle and the reduced diameter terminal section, said terminal section provided with male threads on the surface thereof; (b) a block having an upper surface and a lower surface, said upper surface having a pair of lateral edges, said lower surface having affixed thereto a plurality of groupings of bristles extending away from the lower surface; (c) a raised inclined support mound situated on and integral with and in one piece with the upper surface of the block, said mound having an axis of symmetry approximately perpendicular to one of the lateral edges of said upper surface and defining an oblique angle with the plane of said upper surface; and (d) a rectilinear blind bore running axially through the mound and extending below the upper surface of the block, said bore comprising an upper portion and a lower portion with a diameter less than that of said upper portion, said lower portion having walls provided with female threads adapted for detachable screw engagement with the male threads on the terminal section of the handle, said bore being adapted for receiving the connector end of the handle with the terminal section of the connector end threadedly engaging the lower portion of the bore and with the upper portion of the bore encircling and supporting a portion of the connector end of the handle situated above the reduced terminal section thereof said shoulder abutting against a seat in the bore situated below the upper surface of the block and with a lower part of the supported portion of the connector end of the handle being situated as well below the upper surface of the block.
Claim 3
Dependent Claim 37 words
A push-broom according to claim 1 wherein said block has a generally oblong configuration and said mound has a generally frusto-conical configuration, tapering from a base adjacent to the upper surface of the block to its top.
Claim 4
Dependent Claim 14 words
A push-broom according to claim 1 wherein said block is molded from plastic material.
Claim 5
Dependent Claim 13 words
A push-broom according to claim 3 wherein said plastic material is polypropylene foam.
Claim 6
Dependent Claim 45 words
A push-broom according to claim 1 wherein said shoulder and said seat are tapered and are in close abutting relationship, when the connector end of the handle is inserted into the bore and the terminal section thereof threadedly engages the lower portion of the bore.
Claim 7
Dependent Claim 20 words
A push-broom according to claim 1 wherein the mound and the bore running therethrough have the same axis of symmetry.
Claim 8
Dependent Claim 18 words
A push-broom according to claim 1 wherein the connector end of the handle fits snugly into the bore.

References Cited (Backward Citations)

DE569723C Cited
US689941A Cited
DE668740C Cited
US2251857A Cited
US2705336A Cited
GB806145A Cited
US2845651A Cited
US3218662A Cited
US3256048A Cited
US3707739A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-05-23 1986-11-22 1987-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-05-23 1990-11-22 1991-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-05-23 1994-11-22 1995-05-24 $7700.00 Window Closed / Lapsed

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