US4492400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Robotic gripper operator mechanism
Assignee: COMPACT AIR PRODUCTS OF SOUTH CAROLINA Inc
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Filing: 1983-03-28
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Granted: 1985-01-08
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Expires: 2003-03-28
Abstract
Abstract A robotic gripper is illustrated having improved operator mechanism facilitating the use of multiple fingers or jaws for picking up objects of various shapes including round objects. The operator mechanism includes a fluid-operated plunger having transverse grooves each forming, together with an opposite groove in each of the respective fingers, a seat for the bearings.
Inventors
- 👤 Lawrence F. Yuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:31
CPC Classifications
B; B25; B25J; B25J15/00; B25J15/02; B25J15/0206; B25J15/08; B25J15/10; B25J15/103
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
A robotic gripper having a housing carrying a fluid-operated piston with a plunger connected in axial alignment therewith comprising: a plurality of gripping fingers each pivotally connected to said housing adjacent said plunger; a transverse arcuate groove in said plunger opposite each of said fingers; a corresponding groove in each finger opposite a said first mentioned groove and forming respective seats therewith; and a free bearing member retained within each of said respective seats formed by opposed respective grooves; whereby a power stroke operating said fingers is exerted responsive to a power stroke of said piston.
Claim 2
Dependent Claim
96 words
A robotic gripper having a housing carrying a fluid-operated piston with a plunger connected in axial alignment therewith comprising: a plurality of gripping fingers each pivotally connected to said housing adjacent said plunger; a transverse arcuate groove in said plunger opposite each of said fingers; a corresponding groove in each finger opposite a said first mentioned groove and forming respective seats therewith; and a free bearing member retained within each of said respective seats formed by opposed respective grooves; whereby a power stroke operating said fingers is exerted responsive to a power stroke of said piston.
Claim 3
Dependent Claim
24 words
The structure set forth in claim 1 wherein said bearing member is cylindrical and a groove in each of said fingers corresponds closely thereto.
Claim 4
Dependent Claim
17 words
The structure set forth in claim 2 wherein three circumferentially spaced fingers extend outwardly of said housing.
Claim 5
Dependent Claim
129 words
A robotic gripper having a housing carrying a fluid-operated piston with a plunger connected on one end in axial alignment therewith comprising: a plurality of outwardly extending bracket members carried by one end of said housing opposite the other end of said plunger; a plurality of gripping fingers each pivotally carried by said bracket members for connection to said housing opposite and remote from said plunger; a transverse arcuate groove in said plunger opposite each of said fingers; a corresponding groove in each finger opposite a said first mentioned groove and forming respective seats therewith; and a free bearing member retained within each of said respective seats formed by opposed respective grooves; whereby a power stroke operating said fingers is exerted responsive to a power stroke of said piston.
Claim 6
Dependent Claim
129 words
A robotic gripper having a housing carrying a fluid-operated piston with a plunger connected on one end in axial alignment therewith comprising: a plurality of outwardly extending bracket members carried by one end of said housing opposite the other end of said plunger; a plurality of gripping fingers each pivotally carried by said bracket members for connection to said housing opposite and remote from said plunger; a transverse arcuate groove in said plunger opposite each of said fingers; a corresponding groove in each finger opposite a said first mentioned groove and forming respective seats therewith; and a free bearing member retained within each of said respective seats formed by opposed respective grooves; whereby a power stroke operating said fingers is exerted responsive to a power stroke of said piston.
Claim 7
Dependent Claim
53 words
The structure set forth in claim 4 wherein three V-shaped bracket members each having an apex facing inwardly forming a retainer for said bearing members with respective outwardly diverging legs forming, together with an adjacent leg of the other V-shaped bracket members, a receptacle having opposed sides for pivotally mounting respective fingers therebetween.
References Cited (Backward Citations)
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Cited
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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) | 1988-01-08 | 1988-07-09 | 1989-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-08 | 1992-07-09 | 1993-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-08 | 1996-07-09 | 1997-01-08 | $7700.00 | Window Closed / Lapsed |