US3722710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work carrier for abrasive cleaning arrangements
Assignee: Pangborn Corp
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Filing: 1970-10-23
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Granted: 1973-03-27
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Expires: 1990-10-23
Abstract
Abstract A work carrier for use in abrasive cleaning arrangements comprises a support movable in a forward direction with generally vertical work engaging arms having hook-like projections for moving into and out of a work engaging position.
Inventors
- 👤 B Ixer
- 👤 D Baughman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:13
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/44; B66C1/54; B65; B65G; B65G17/00; B65G17/20; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
A work carrier for use in abrasive cleaning arrangements comprising a housing, means for supporting said housing, a plurality of generally vertical work engaging arms, each arm having a hook-like projection at one end for engaging work and an offset extension at the other end, said housing having a plurality of ledges, and shoulders, each of said offset extensions being confined between a respective ledge and shoulder in loose pivotable engagement, and actuating means for selectively moving said arms outwardly away from each other into a work engaging position and inwardly toward each other into a work releasing position, said actuating means including a vertically movable spindle terminating in a spherical actuation member disposed in said housing, each of said arms having a knob with a recess above said spherical member and a tapered contact surface which is inclined from its recess toward the longitudinal axis of said spherical member to a point below said spherical member whereby said arms are arranged for confining said spherical member in engagement with said arms.
Claim 2
Dependent Claim
172 words
A work carrier for use in abrasive cleaning arrangements comprising a housing, means for supporting said housing, a plurality of generally vertical work engaging arms, each arm having a hook-like projection at one end for engaging work and an offset extension at the other end, said housing having a plurality of ledges, and shoulders, each of said offset extensions being confined between a respective ledge and shoulder in loose pivotable engagement, and actuating means for selectively moving said arms outwardly away from each other into a work engaging position and inwardly toward each other into a work releasing position, said actuating means including a vertically movable spindle terminating in a spherical actuation member disposed in said housing, each of said arms having a knob with a recess above said spherical member and a tapered contact surface which is inclined from its recess toward the longitudinal axis of said spherical member to a point below said spherical member whereby said arms are arranged for confining said spherical member in engagement with said arms.
Claim 3
Dependent Claim
29 words
A work carrier according to claim 1 including translatory means for moving said support means in a forward direction and means for rotating said housing and work carried thereby.
Claim 4
Dependent Claim
52 words
A work carrier as set forth in claim 2 wherein said spindle includes an externally threaded extension, a sprocket having internal threads engaging said externally threaded extension, and means for preventing said spindle from rotating with said sprocket whereby rotation of said sprocket causes said spindle to move selectively up and down.
Claim 5
Dependent Claim
47 words
A work carrier as set forth in claim 3 including a spindle casing, said spindle being connected to said spindle casing for rotation therewith and for relative vertical movement within and with respect to said casing, and said rotation means including a sprocket mounted on said casing.
Claim 6
Dependent Claim
46 words
A work carrier as set forth in claim 4 wherein said casing terminates at its lower end in a cap, said housing being open at its upper end, said cap closing said open upper end, and each of said shoulders being a flange on said cap.
Claim 7
Dependent Claim
44 words
A work carrier as set forth in claim 5 wherein said cap includes an axial opening through which said spindle extends, and expandable sealing means connecting said cap to said spindle to maintain said axial opening sealed during the vertical movement of said spindle.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |