US3738500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable mounting for boom type loaders
Assignee: Oregon Tool Inc
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Filing: 1971-02-23
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Granted: 1973-06-12
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Expires: 1991-02-23
Abstract
Abstract A large ring providing an outer raceway for a rotatable mounting rigidly mounted to the reinforced roof of a vehicle cab. A disc having an inner raceway on its periphery is rotatably supported on ball bearings within the outer raceway. A boom is mounted to a brace which is rigidly affixed to the disc. A column depending from the disc carries a pinion gear. Cylinders containing fluid driven pistons are rigidly mounted to the cab on either side of the pinion gear. The pistons carry gear racks that are moved past the pinion gears. The gear teeth of the rack and pinion are interengaged and by driving the rack the pinion gear and disc with boom mounted thereon are rotated.
Inventors
- 👤 W Ostling
- 👤 T Coleman
- 👤 R Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:12
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/065; B; B66; B66C; B66C23/00; B66C23/62; B66C23/84; B66C23/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
346 words
A mounting assembly for mounting a materials handling boom to the roof of the cab of a vehicle comprising; a mounting ring having a raceway formed on its inner edge, said mounting ring rigidly fixed to the roof of the cab, a disc like plate having a raceway formed on its outer edge mating with the raceway of the mounting ring, bearing means trapped between the raceway of the mounting ring and the raceway of the disc like plate which bearing means and mounting ring provide the sole support for the disc like plate, said disc like plate having a central opening and a collar formed around said opening, a bolt having a shank portion inserted through the central opening of the disc shaped plate to be encased by the collar, keying means between the shank of the bolt and the collar to prevent turning of said bolt relative to the collar, said bolt having a head portion at one end of the shank abutted against one end of the collar, and releasable locking means locking the bolt in a position with the head abutted against the collar and being releasable to permit sliding removal of the bolt from the collar, gear teeth forming a pinion gear on the head portion of the bolt, a gear rack having gear teeth interengaged with the pinion gear, said gear rack having piston like ends each slidably supported in a closed end of a cylindrical housing containing liquid that is fixed relative to the cab roof, sealing means preventing liquid from flowing past said piston like ends within said cylindrical housing, and motor means for selectively forcing liquid into the enclosed ends of the cylindrical housing to selectively position the piston like ends within the housing and thereby sElectively force longitudinal movement of the gear rack, a mounting bracket fixed to said disc like plate supporting a materials handling boom, said materials handling boom being selectively rotated in a horizontal plane by rotation of the disc like plate through the engagement of the gear rack with the pinion gear.
Claim 2
Dependent Claim
346 words
A mounting assembly for mounting a materials handling boom to the roof of the cab of a vehicle comprising; a mounting ring having a raceway formed on its inner edge, said mounting ring rigidly fixed to the roof of the cab, a disc like plate having a raceway formed on its outer edge mating with the raceway of the mounting ring, bearing means trapped between the raceway of the mounting ring and the raceway of the disc like plate which bearing means and mounting ring provide the sole support for the disc like plate, said disc like plate having a central opening and a collar formed around said opening, a bolt having a shank portion inserted through the central opening of the disc shaped plate to be encased by the collar, keying means between the shank of the bolt and the collar to prevent turning of said bolt relative to the collar, said bolt having a head portion at one end of the shank abutted against one end of the collar, and releasable locking means locking the bolt in a position with the head abutted against the collar and being releasable to permit sliding removal of the bolt from the collar, gear teeth forming a pinion gear on the head portion of the bolt, a gear rack having gear teeth interengaged with the pinion gear, said gear rack having piston like ends each slidably supported in a closed end of a cylindrical housing containing liquid that is fixed relative to the cab roof, sealing means preventing liquid from flowing past said piston like ends within said cylindrical housing, and motor means for selectively forcing liquid into the enclosed ends of the cylindrical housing to selectively position the piston like ends within the housing and thereby sElectively force longitudinal movement of the gear rack, a mounting bracket fixed to said disc like plate supporting a materials handling boom, said materials handling boom being selectively rotated in a horizontal plane by rotation of the disc like plate through the engagement of the gear rack with the pinion gear.
References Cited (Backward Citations)
US2461877A
Cited
GB748345A
Cited
US2834480A
Cited
US3003649A
Cited
US3043448A
Cited
US3112035A
Cited
CA859489A
Cited
US3589526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |