US3682327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary work-handling attachment for work transfer device
Assignee: Rimrock Corp
•
Filing: 1970-04-03
•
Granted: 1972-08-08
•
Expires: 1990-04-03
Abstract
Abstract The present invention replaces the workpiece-lifting arm on top of the vertically-reciprocating horizontally-turning lift piston rod of the Lifting and Swinging Work Transfer Device of Kirsch et al. U.S. Pat. No. 3,406,837 of Oct. 22, 1968 by a head adjustably holding a horizontal slide bearing sleeve in which is adjustably slidably mounted an elongated tubular arm. The forward end of this arm carries a stationary work-gripping jaw disposed adjacent a movable work-gripping jaw on a piston rod extending through the arm to the piston head of a jaw-operating fluid pressure cylinder mounted on the rearward end of the arm. Drivingly secured to the arm is an arm-rotating pinion which meshes with a toothed rack interconnecting the spaced two heads of a double-headed piston. The piston is reciprocable in a stationary cylinder mounted on the bearing sleeve. The stroke of the piston at one end of the cylinder is limited by an adjustable stop adjacent an adjustable cylinder head while at the other end the stroke is limited by interchangeable stops adjacent a removable cylinder head for limiting the maximum stroke of the piston and therefore limiting the amount of rotation imparted to the tubular arm and workgripping jaws carried thereby.
Inventors
- 👤 John R Winne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:46
CPC Classifications
B; B25; B25J; B25J9/00; B25J9/10; B25J9/1005; B25J9/101; B25J18/00; B25J18/02; B25J18/04; B25J9/14; B25J9/146; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
311 words
A rotary work-handling attachment for the verticallyreciprocating horizontally-rotating lift piston rod of a lifting and swinging work transfer device, said attachment comprising an arm holder adapted to fit onto the lift piston rod in place of the existing work transfer mechanism already thereon, an elongated tubular arm bearing structure with axially-spaced bearings therein mounted on said arm holder, an elongated horizontal arm rotatably mounted on said arm bearing structure for rotation around the longitudinal axis of said arm bearing structure, a fluid pressure jaw-operating cylinder mounted on said arm and having a jaw-operating piston reciprocable therein, a first work-gripping jaw mounted on said arm remote from said jaw-operating cylinder, a second work-gripping jaw mounted adjacent said first workgripping jaw for motion relatively thereto, a jaw-operating motion-transmitting member operatively connecting said jaw-operating piston to at least one of said jaws, a bracket member mounted on said arm bearing structure, a fluid pressure arm-rotating cylinder mounted on said bracket member with its axis disposed transversely to said arm and having an arm-rotating piston reciprocable therein, said arm-rotating piston having a piston rod with rack teeth therealong and having two piston heads spaced axially apart from one another on said piston rod, and a pinion operatively connected to said arm and disposed between said piston heads and meshing with said rack teeth on said piston rod, said arm-rotating cylinder having a first cylinder head removably mounted on one end thereof and a first pistonstroke-limiting stop member removably mounted in said armrotating cylinder adjacent said first removable cylinder head, said arm-rotating cylinder having a second stroke-adjusting cylinder head threadedly mounted on the other end thereof for adjustment longitudinally therealong, and a second pistonstroke-limiting stop member interchangeably and removably mounted in said arm-rotating cylinder adjacent said second cylinder head, and means on said cylinders for respectively supplying and discharging pressure fluid to and from said cylinders.
Claim 2
Dependent Claim
311 words
A rotary work-handling attachment for the verticallyreciprocating horizontally-rotating lift piston rod of a lifting and swinging work transfer device, said attachment comprising an arm holder adapted to fit onto the lift piston rod in place of the existing work transfer mechanism already thereon, an elongated tubular arm bearing structure with axially-spaced bearings therein mounted on said arm holder, an elongated horizontal arm rotatably mounted on said arm bearing structure for rotation around the longitudinal axis of said arm bearing structure, a fluid pressure jaw-operating cylinder mounted on said arm and having a jaw-operating piston reciprocable therein, a first work-gripping jaw mounted on said arm remote from said jaw-operating cylinder, a second work-gripping jaw mounted adjacent said first workgripping jaw for motion relatively thereto, a jaw-operating motion-transmitting member operatively connecting said jaw-operating piston to at least one of said jaws, a bracket member mounted on said arm bearing structure, a fluid pressure arm-rotating cylinder mounted on said bracket member with its axis disposed transversely to said arm and having an arm-rotating piston reciprocable therein, said arm-rotating piston having a piston rod with rack teeth therealong and having two piston heads spaced axially apart from one another on said piston rod, and a pinion operatively connected to said arm and disposed between said piston heads and meshing with said rack teeth on said piston rod, said arm-rotating cylinder having a first cylinder head removably mounted on one end thereof and a first pistonstroke-limiting stop member removably mounted in said armrotating cylinder adjacent said first removable cylinder head, said arm-rotating cylinder having a second stroke-adjusting cylinder head threadedly mounted on the other end thereof for adjustment longitudinally therealong, and a second pistonstroke-limiting stop member interchangeably and removably mounted in said arm-rotating cylinder adjacent said second cylinder head, and means on said cylinders for respectively supplying and discharging pressure fluid to and from said cylinders.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |