US3814413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for holding and moving a work object
Assignee: Individual
•
Filing: 1971-09-08
•
Granted: 1974-06-04
•
Expires: 1991-09-08
Abstract
Abstract A device for holding and moving a work object comprising a support, an elongated elevation member hinged to the support, a work supporting head mounted on the distal end of the elevation member and adapted to rotate about a horizontal axis and a second axis perpendicular to the horizontal axis. Power means are provided for moving the elevation member upwardly and downwardly and for rotating the head about its first and second axes. Special controls are provided for controlling the elevation of the head, the tilt angle of the head, and the speed at which the head is rotating the work object. Check valves are provided in the hydraulic system for preventing the sinking of the head in response to gravitational force, for preventing the tilting of the head in response to outside forces, and for preventing the coasting of the head about its rotational axis when the means for rotating the head is deactuated.
Inventors
- 👤 C Bopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:00
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C23/48; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/2022
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
211 words
A device for holding and moving a work object comprising; a support; an elongated elevation member movably mounted on said support, said elevation member having a first end which is movable upwardly and downwardly with respect to said support; a head mounted on said elevation member adjacent said first end thereof for upward and downward movement therewith; said head being pivotally mounted to said elevation member for pivotal movement about a first horizontal axis and being adapted to rotate about a second axis perpendicular to said first axis; attachment means on said head for detachably securing a work object thereon; power means for moving said elevation member with respect to said support and for moving said head about said first and second axes; said power means including a variable speed motor for rotating said head about said second axis; said motor having a speed control member movable through a plurality of positions for causing said motor to rotate said head at a plurality of speeds; a speed governor being attached to said speed control member for yieldably holding said speed control member in a preselected position, a manually operated override mechanism being connected to said speed control member for manually moving said speed control member against the bias of said governor.
Claim 2
Independent Claim
211 words
A device for holding and moving a work object comprising; a support; an elongated elevation member movably mounted on said support, said elevation member having a first end which is movable upwardly and downwardly with respect to said support; a head mounted on said elevation member adjacent said first end thereof for upward and downward movement therewith; said head being pivotally mounted to said elevation member for pivotal movement about a first horizontal axis and being adapted to rotate about a second axis perpendicular to said first axis; attachment means on said head for detachably securing a work object thereon; power means for moving said elevation member with respect to said support and for moving said head about said first and second axes; said power means including a variable speed motor for rotating said head about said second axis; said motor having a speed control member movable through a plurality of positions for causing said motor to rotate said head at a plurality of speeds; a speed governor being attached to said speed control member for yieldably holding said speed control member in a preselected position, a manually operated override mechanism being connected to said speed control member for manually moving said speed control member against the bias of said governor.
Claim 3
Dependent Claim
88 words
A device according to claim 1 wherein said speed control member is a lever which swings about a pivot point adjacent one of its ends; said governor having an elongated coil spring having a first end pivotally connected to said lever and having a second end located radially outwardly from said first end with respect to said pivot point; anchor means being connected to said second end of said spring for causing said spring to yieldably urge said lever into alignment with the longitudinal axis of said spring.
Claim 4
Dependent Claim
81 words
A device according to claim 2 wherein said anchor means includes swing member connected to said second end of said spring and being movably in an arc concentric to said pivot point of said lever, releasable securing means being associated with said swing member for permitting selective fastening of said swing member in any of a plurality of positions along said arc whereby said Spring will urge said lever into a different position for each different position of said swing member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |