Patent US3574880A successfully refreshed from Google Patents.
US3574880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush
Assignee: LOS ANGELES BRUSH Mfg CORP
•
Filing: 1968-12-05
•
Granted: 1971-04-13
•
Expires: 1988-12-05
Abstract
Abstract A rotary brush for use in cleaning, drying and polishing produce comprising a core with filament extending therefrom and adapted to be arranged in a substantially horizontal plane laterally adjacent a plurality of similar brushes.
Inventors
- 👤 Donald N Butzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:52
CPC Classifications
A; A23; A23N; A23N12/00; A23N12/005; A46; A46B; A46B13/00; A46B13/001; Y; Y02; Y02A; Y02A40/00; Y02A40/90
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
144 words
A rotary brush particularly adaptable for use in moist conditions, comprising: a rigid metal mandrel; a penetrable plastic sleeve mounted concentrically on and in engagement with the outer surface of said mandrel, said sleeve having a plurality of circumferentially spaced and inwardly extending tuft bores terminating at a particular distance from said mandrel; tufts of filament extending radially outward from said sleeve, each said tuft of filament received by one of said tuft bores; staple members, each said staple member penetrating said sleeve and secuRing a tuft of filament against said sleeve at the termination of said tuft bore; said distance between the termination of each said tuft bore and said mandrel being such that each said staple member is substantially deformed by said mandrel and clinched between said mandrel and said sleeve whereby said tufts of filament are securely anchored to said sleeve.
Claim 2
Dependent Claim
144 words
A rotary brush particularly adaptable for use in moist conditions, comprising: a rigid metal mandrel; a penetrable plastic sleeve mounted concentrically on and in engagement with the outer surface of said mandrel, said sleeve having a plurality of circumferentially spaced and inwardly extending tuft bores terminating at a particular distance from said mandrel; tufts of filament extending radially outward from said sleeve, each said tuft of filament received by one of said tuft bores; staple members, each said staple member penetrating said sleeve and secuRing a tuft of filament against said sleeve at the termination of said tuft bore; said distance between the termination of each said tuft bore and said mandrel being such that each said staple member is substantially deformed by said mandrel and clinched between said mandrel and said sleeve whereby said tufts of filament are securely anchored to said sleeve.
Claim 3
Dependent Claim
42 words
The brush of claim 1, wherein each end of said mandrel is provided with a releasably secured end cap, each said end cap fitting axially within the end of said mandrel and adapted to be connected to means for rotating the brush.
Claim 4
Dependent Claim
36 words
The brush of claim 1, wherein said sleeve comprises a pair of concentric extruded plastic members with said tuft bores in said outer concentric plastic member and said staple members penetrating said inner concentric plastic member.
Claim 5
Dependent Claim
11 words
The brush of claim 1, wherein said plastic sleeve is polyethylene.
Claim 6
Independent Claim
178 words
An apparatus having a plurality of laterally adjacent rotatable brushes arranged in a substantially horizontal plane, each said brush comprising: a metal core; a penetrable plastic sleeve concentrically mounted on and in engagement with the outer surface of said core, said sleeve having a plurality of circumferentially spaced and inwardly extending tuft bores terminating at a particular distance from said core; tufts of filament extending radially outward from said sleeve, each said tuft of filament received by one of said tuft bores; staple members securing said tufts of filament within said tuft bores and penetrating the portion of said sleeve between the termination of each said tuft bore and said core; said distance between the termination of each said tuft bore and said core being such that each said staple member is substantially deformed by said core and clinched between said core and said sleeve whereby said tufts of filament are securely anchored to said sleeve; means releasably attached to each end of said core and adapted to be connected to power driven means for rotating the brush.
Claim 7
Independent Claim
178 words
An apparatus having a plurality of laterally adjacent rotatable brushes arranged in a substantially horizontal plane, each said brush comprising: a metal core; a penetrable plastic sleeve concentrically mounted on and in engagement with the outer surface of said core, said sleeve having a plurality of circumferentially spaced and inwardly extending tuft bores terminating at a particular distance from said core; tufts of filament extending radially outward from said sleeve, each said tuft of filament received by one of said tuft bores; staple members securing said tufts of filament within said tuft bores and penetrating the portion of said sleeve between the termination of each said tuft bore and said core; said distance between the termination of each said tuft bore and said core being such that each said staple member is substantially deformed by said core and clinched between said core and said sleeve whereby said tufts of filament are securely anchored to said sleeve; means releasably attached to each end of said core and adapted to be connected to power driven means for rotating the brush.
References Cited (Backward Citations)
CA634161A
Cited
US648527A
Cited
US1482744A
Cited
US1978489A
Cited
US2244110A
Cited
US2879534A
Cited
GB842185A
Cited
US3246378A
Cited
US3329986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |