US3750225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Street sweeping brush
Assignee: Individual
•
Filing: 1970-12-04
•
Granted: 1973-08-07
•
Expires: 1990-12-04
Abstract
Abstract A rotary helical brush for sweeping or cleaning has a cylindrical core with a continuous fabricated helical coil bristle section encircling the core, and a device attached to an edge of the core and coupled to an end of the bristle section for preventing rotation of the bristle section in one direction during operation while permitting rotation in the opposite direction. The device includes a pivoted arm which engages the bristle section or an extension thereof.
Inventors
- 👤 W Gould
- 👤 C Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:00
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/006
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
181 words
A slack accumulator and snubbing device for use on a rotary helical brush having a core and a continuous coiled sweeping element mounted about and along the core of said brush comprising a body adapted to be removable mounted along an edge of said core, said body having a longitudinal passageway for coupling to an end portion of said sweeping element passing through said body from one end to beyond the other end of said body, said other end having a surface extending therefrom substantially transverse to the axis of said passageway, a piece having one edge pivotally mounted along said extending surface, the other edge of said piece extending into said passageway for interfering with the passage of said end portion of said sweeping element so as to be pivoted in response to movement of said sweeping element end portion through said passageway towards said piece, means biasing said piece towards said one end of said body whereby said piece prevents a rotation of said sweeping section on said core in one direction while permitting rotation in an opposite direction.
Claim 2
Dependent Claim
181 words
A slack accumulator and snubbing device for use on a rotary helical brush having a core and a continuous coiled sweeping element mounted about and along the core of said brush comprising a body adapted to be removable mounted along an edge of said core, said body having a longitudinal passageway for coupling to an end portion of said sweeping element passing through said body from one end to beyond the other end of said body, said other end having a surface extending therefrom substantially transverse to the axis of said passageway, a piece having one edge pivotally mounted along said extending surface, the other edge of said piece extending into said passageway for interfering with the passage of said end portion of said sweeping element so as to be pivoted in response to movement of said sweeping element end portion through said passageway towards said piece, means biasing said piece towards said one end of said body whereby said piece prevents a rotation of said sweeping section on said core in one direction while permitting rotation in an opposite direction.
Claim 3
Dependent Claim
49 words
The device of claim 1, wherein said piece has an elongated opening therethrough substantially transverse to the pivoting movement, and said biasing means includes a shaft passing through said opening and secured to said body and a spring interposed between the free end of said shaft and said piece.
Claim 4
Dependent Claim
115 words
A rotatable brush comprising a cylindrical core, a preassembled brush strip means helically wound on said core in one direction, and accumulator means mounted on said core adjacent to and coupled to one end of said brush strip means, said accumulator means continuously and positively taking up slack in one direction in said brush strip means that accumulates during operation of the brush and holding said brush strip means taut on said core, further said accumulator means preventing rotation of said brush strip means in the direction opposite to the direction of the helical winding while continuously permitting displacement of said one end of the brush strip means in the direction of the helical winder.
Claim 5
Dependent Claim
115 words
A rotatable brush comprising a cylindrical core, a preassembled brush strip means helically wound on said core in one direction, and accumulator means mounted on said core adjacent to and coupled to one end of said brush strip means, said accumulator means continuously and positively taking up slack in one direction in said brush strip means that accumulates during operation of the brush and holding said brush strip means taut on said core, further said accumulator means preventing rotation of said brush strip means in the direction opposite to the direction of the helical winding while continuously permitting displacement of said one end of the brush strip means in the direction of the helical winder.
Claim 6
Dependent Claim
18 words
The brush of claim 3, wherein said means comprises a one-way clutch coupled to said sweeping section end.
Claim 7
Dependent Claim
81 words
A rotatable brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core and bristlEs carried by said channel and radially projecting therefrom, and a one-way clutch mounted on said core adjacent to and coupled to at least one end of the sweeper section for permitting movement of such sweeper section on said core in the direction of the helical winder while preventing the movement of said sweeper section in the opposite direction.
Claim 8
Dependent Claim
81 words
A rotatable brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core and bristlEs carried by said channel and radially projecting therefrom, and a one-way clutch mounted on said core adjacent to and coupled to at least one end of the sweeper section for permitting movement of such sweeper section on said core in the direction of the helical winder while preventing the movement of said sweeper section in the opposite direction.
Claim 9
Dependent Claim
20 words
The brush of claim 5, wherein said clutch is removably mounted on the core proximate the end of the core.
Claim 10
Dependent Claim
41 words
A brush of claim 5, wherein said clutch includes a pivoted piece biased in a closed position and pivoted in response to movement of said sweeper section in passing through said means in the direction of rotation of the sweeper section.
Claim 11
Dependent Claim
127 words
A rotating brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core and bristles carried by said channel and radially projecting therefrom, and means mounted on said core and coupled to at least one end of said sweeper section for continuously permitting movement of said sweeper section in one direction in response to accumulation of slack during brush operation and preventing movement of the sweeper section in the opposite direction, said means including a body having an axial passageway for receiving an end of said sweeper section, a piece spring loaded to abut the end of said body remote from the entrance of said sweeper section into said body and which has an edge extending into the passageway.
Claim 12
Dependent Claim
127 words
A rotating brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core and bristles carried by said channel and radially projecting therefrom, and means mounted on said core and coupled to at least one end of said sweeper section for continuously permitting movement of said sweeper section in one direction in response to accumulation of slack during brush operation and preventing movement of the sweeper section in the opposite direction, said means including a body having an axial passageway for receiving an end of said sweeper section, a piece spring loaded to abut the end of said body remote from the entrance of said sweeper section into said body and which has an edge extending into the passageway.
Claim 13
Dependent Claim
46 words
A brush as in claim 8, wherein said piece has an elongated opening through which passes a bolt received into said body, said body end having an extending surface substantially at right angles to the axis of said passageway, said piece pivoting along said extending surface.
Claim 14
Dependent Claim
89 words
A rotatable brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core, and bristles carried by said channel and radially projecting therefrom, an arm extending outwardly from the base channel of said bristle section having generally the same curvature of said channel, and means mounted on said core and engaging said arm for continuously permitting movement of said arm in one direction to accommodate slack of said sweeper section and preventing rotation of the sweeper section in the opposite direction.
Claim 15
Dependent Claim
89 words
A rotatable brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core, and bristles carried by said channel and radially projecting therefrom, an arm extending outwardly from the base channel of said bristle section having generally the same curvature of said channel, and means mounted on said core and engaging said arm for continuously permitting movement of said arm in one direction to accommodate slack of said sweeper section and preventing rotation of the sweeper section in the opposite direction.
Claim 16
Dependent Claim
50 words
A brush as in claim 10, wherein the one end of the sweeper section coupled to said means is the end towards which the sweeper section would advance if rotated, and said arm being of a length at least equal to the slack of the sweeper element on said core.
Claim 17
Dependent Claim
82 words
A rotating brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core and bristles carried by said channel and radially projecting therefrom, and means mounted on said core and engaging at least one end of the base channel of said sweeper section for continuously permitting movement of said sweeper section in one direction in response to accumulation of slack during brush operation and preventing movement of the sweeper section in the opposite direction.
Claim 18
Dependent Claim
82 words
A rotating brush comprising a cylindrical core, a helical sweeper section including a helically extending base channel registering with said core and bristles carried by said channel and radially projecting therefrom, and means mounted on said core and engaging at least one end of the base channel of said sweeper section for continuously permitting movement of said sweeper section in one direction in response to accumulation of slack during brush operation and preventing movement of the sweeper section in the opposite direction.
Claim 19
Dependent Claim
89 words
A slack accumulator member for a brush strip means helically wound about a core means in one direction, said member adapted to be mounted on said core means adjacent to one end thereof and engaging one end of said brush strip and including means for continuously and positively taking up slack in said brush strip in one direction that accumulates during sweeping and maintaining said brush strip taut and further permitting movement of said brush strip means in one direction only and preventing the movement in the opposite direction.
Claim 20
Dependent Claim
89 words
A slack accumulator member for a brush strip means helically wound about a core means in one direction, said member adapted to be mounted on said core means adjacent to one end thereof and engaging one end of said brush strip and including means for continuously and positively taking up slack in said brush strip in one direction that accumulates during sweeping and maintaining said brush strip taut and further permitting movement of said brush strip means in one direction only and preventing the movement in the opposite direction.
Claim 21
Dependent Claim
118 words
A helical sweeper section used on a rotating brush and cooperating with a cylindrical helical core and having a brush slack accumulator device containing a passageway therethrough mounted along an edge of set core with a one-way clutch means extending into said passageway, comprising a helically extending base channel for Registering with said core, a plurality of bristles carried by said base channel and radially projecting therefrom, and an arm extending outwardly from an end of said base channel and adapted to pass through said passageway of said accumulator and engage said clutch means therein for accommodating movement of said sweeper section on said core in the direction of helical winding while preventing movement in the opposite direction.
Claim 22
Dependent Claim
118 words
A helical sweeper section used on a rotating brush and cooperating with a cylindrical helical core and having a brush slack accumulator device containing a passageway therethrough mounted along an edge of set core with a one-way clutch means extending into said passageway, comprising a helically extending base channel for Registering with said core, a plurality of bristles carried by said base channel and radially projecting therefrom, and an arm extending outwardly from an end of said base channel and adapted to pass through said passageway of said accumulator and engage said clutch means therein for accommodating movement of said sweeper section on said core in the direction of helical winding while preventing movement in the opposite direction.
Claim 23
Dependent Claim
21 words
A sweeper section of claim 14, wherein said arm has generally the same curvature as said base channel about said core.
Claim 24
Dependent Claim
18 words
A helical sweeper section of claim 15, wherein said arm is a cable fastened to said base channel.
Claim 25
Dependent Claim
108 words
In combination, cylindrical core for mounting a rotating brush thereon, said core adapted to receive a helically extending base channel about said core, said base channel having a member extending outwardly from one end thereof and said channel carrying bristles which radially project therefrom, and means removably mounted along an edge of said core and engaging said member extending from said base channel, said means continuously and positively taking up slack in said base channel that accumulates during operation and holding said channel taut which allows movement of said base channel in one direction when mounted on said base core while preventing movement thereof in the opposite direction.
Claim 26
Dependent Claim
108 words
In combination, cylindrical core for mounting a rotating brush thereon, said core adapted to receive a helically extending base channel about said core, said base channel having a member extending outwardly from one end thereof and said channel carrying bristles which radially project therefrom, and means removably mounted along an edge of said core and engaging said member extending from said base channel, said means continuously and positively taking up slack in said base channel that accumulates during operation and holding said channel taut which allows movement of said base channel in one direction when mounted on said base core while preventing movement thereof in the opposite direction.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |