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US3768111A Expired / Lapsed US ⏱️ 0.0 years remaining

Curling broom and cover

Assignee: Individual
•
Filing: 1972-01-18
•
Granted: 1973-10-30
•
Expires: 1992-01-18
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Abstract

Abstract A curling broom is provided with a sock of knitted fibrous material enclosing the parts of the broom bristles that would ordinarily contact the ice, or alternatively covering such parts except for the tips of the bristles at the lower end of the broom, the sock providing a coarse surface for rubbing the ice while holding the broom bristles together. Within the sock is a lining having a surface that permits relative movement of the bristles during sweeping without catching on the sock or the lining, the sock and lining forming a cover having means for preventing undue stretching or twisting of the sock relative to the bristles.

Inventors

  • 👤 N Lees

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 14:09
CPC Classifications
A; A46; A46B; A46B17/00; A46B17/04; A63; A63B; A63B67/00; A63B67/14; A63B67/148; A46B2200/00; A46B2200/30; A46B2200/308

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 177 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover surrounding at least a major portion of the head to hold the bristle together at the lower end of the broom, said cover having its upper end secured to the broom so as not be be dislodged by sweeping and being sufficiently loose-fitting to permit movement of the individual bristles relative to one another and to said cover, the cover comprising an inner layer having an inner surface, with a low coefficient of friction, along which the bristles can slide during sweeping without snagging, an outer ice-contacting layer having a coarse wear-resistant surface for rubbing the ice, and an intermediate layer adapted to limit relative movement between said inner and outer layers, all outer parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 2
Dependent Claim 177 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover surrounding at least a major portion of the head to hold the bristle together at the lower end of the broom, said cover having its upper end secured to the broom so as not be be dislodged by sweeping and being sufficiently loose-fitting to permit movement of the individual bristles relative to one another and to said cover, the cover comprising an inner layer having an inner surface, with a low coefficient of friction, along which the bristles can slide during sweeping without snagging, an outer ice-contacting layer having a coarse wear-resistant surface for rubbing the ice, and an intermediate layer adapted to limit relative movement between said inner and outer layers, all outer parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 3
Dependent Claim 31 words
A curling broom and cover as claimed in claim 1, wherein the bristles are vegetable fibre bristles slidable along said inner surface which is smoother and harder than said outer surface.
Claim 4
Dependent Claim 43 words
A curling broom and cover as claimed in claim 1, wherein said cover is closed at its lower end to enclose the lower end of said head but provides sufficient room within the cover to permit relative movement of said bristles during sweeping.
Claim 5
Dependent Claim 33 words
A curling broom and cover as claimed in claim 3, including outer bristles shorter than inner bristles, the cover having an additional flexible layer at its lower end adding to the weight thereof.
Claim 6
Dependent Claim 48 words
A curling broom and cover as claimed in claim 1, wherein said intermediate layer is fixed to the inner layer, the inner and intermediate layers being substantially inextensible, the intermediate layer having an outer fibrous surface that frictionally engages the outer layer to restrain stretching and twisting thereof.
Claim 7
Dependent Claim 174 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover pervious to air and surrounding at least a major portion of the head to hold the bristles together at the lower end of the broom, said cover being closed at its lower end to enclose the lower end of the broom and having its upper end secured to the broom so as not to be dislodged by sweeping and being sufficiently loose-fitting to permit movement of the individual bristles relative to one another and to said cover, the cover having an inner surface of air pervious plastic material along which the bristles can slide during sweeping without snagging and an outer air pervious coarse wear-resistant surface for rubbing the ice, all parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 8
Dependent Claim 174 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover pervious to air and surrounding at least a major portion of the head to hold the bristles together at the lower end of the broom, said cover being closed at its lower end to enclose the lower end of the broom and having its upper end secured to the broom so as not to be dislodged by sweeping and being sufficiently loose-fitting to permit movement of the individual bristles relative to one another and to said cover, the cover having an inner surface of air pervious plastic material along which the bristles can slide during sweeping without snagging and an outer air pervious coarse wear-resistant surface for rubbing the ice, all parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 9
Dependent Claim 24 words
A curling broom and cover as claimed in claim 6, wherein said air pervious plastic material comprises a fabric lining of woven plastic strips.
Claim 10
Dependent Claim 182 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover surrounding at least a major portion of the head to hold the bristles together at the lower end of the broom, said cover being closed at its lower end to enclose the lower end of the broom and having its upper end fixed to the broom by an elastic connection which prevents the cover from being dislodged by sweeping but permits relative longitudinal movement between the cover and the broom during sweeping, the cover being sufficiently loose-fitting to permit mOvement of the individual bristles relative to one another and to said cover, the cover having an inner surface along which the bristles can slide during sweeping without snagging and an outer coarse wear-resistant surface for rubbing the ice, all parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 11
Dependent Claim 182 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover surrounding at least a major portion of the head to hold the bristles together at the lower end of the broom, said cover being closed at its lower end to enclose the lower end of the broom and having its upper end fixed to the broom by an elastic connection which prevents the cover from being dislodged by sweeping but permits relative longitudinal movement between the cover and the broom during sweeping, the cover being sufficiently loose-fitting to permit mOvement of the individual bristles relative to one another and to said cover, the cover having an inner surface along which the bristles can slide during sweeping without snagging and an outer coarse wear-resistant surface for rubbing the ice, all parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 12
Dependent Claim 46 words
A curling broom and cover as claimed in claim 8, wherein said cover comprises an inner layer having a low coefficient of friction, an outer ice-contacting layer having said coarse surface, and an intermediate layer adapted to limit relative movement between said inner and outer layers.
Claim 13
Dependent Claim 202 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover surrounding at least a major portion of the head to hold the bristles together at the lower end of the broom, said cover having its upper end secured to the broom so as not be be dislodged by sweeping and being sufficiently loosefitting to permit movement of the individual bristles relative to one another and to said cover, the cover surrounding substantially the entire flexible portion of the head but at least the bulk of the individual bristles extending beyond the lower end of the cover, the cover comprising a tubular lining having an inner surface along which the bristles can slide during sweeping without snagging and an outer tube having an outer wear-resistant surface, less smooth than said inner surface, for rubbing the ice, the lining being secured at its ends to the ends of the tube, all parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 14
Dependent Claim 202 words
A curling broom and cover comprising an elongated handle, a plurality of individual bristles bundled to constitute a broom head secured adjacent its upper end to the handle with its lower end free to flex, and a flexible cover surrounding at least a major portion of the head to hold the bristles together at the lower end of the broom, said cover having its upper end secured to the broom so as not be be dislodged by sweeping and being sufficiently loosefitting to permit movement of the individual bristles relative to one another and to said cover, the cover surrounding substantially the entire flexible portion of the head but at least the bulk of the individual bristles extending beyond the lower end of the cover, the cover comprising a tubular lining having an inner surface along which the bristles can slide during sweeping without snagging and an outer tube having an outer wear-resistant surface, less smooth than said inner surface, for rubbing the ice, the lining being secured at its ends to the ends of the tube, all parts of the cover that contact the ice during sweeping being soft so as not to damage a smooth ice surface on striking it.
Claim 15
Dependent Claim 36 words
A curling broom and cover as claimed in claim 10, wherein the outer surface is of coarse knitted fibrous material and the inner surface is of harder plastic material and the bristles are vegetable fibre bristles.

References Cited (Backward Citations)

US544252A Cited
CA818155A Cited
US1086987A Cited
US1476396A Cited
FR885578A Cited
US2288592A Cited
US2963731A Cited
US3328823A Cited
US3380504A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-29 1977-04-30 1977-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-29 1981-04-30 1981-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-29 1985-04-30 1985-10-30 $7700.00 Window Closed / Lapsed

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