US3380641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disconnect drive for inertial welder spindle
Assignee: Caterpillar Inc
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Filing: 1966-07-05
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Granted: 1968-04-30
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Gerald W Deemie
- 👤 Ira H Sage
- 👤 Rakus Alphonzo
- 👤 Ralph W Yocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:27
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A DISCONNECT DRIVE FOR THE SPINDLE OF AN INERTIAL WELDING MACHINE OF THE KIND IN WHICH END SURFACES OF TWO PARTS TO BE WELDED ARE PRESSED TOGETHER WHILE THE STORED ENERGY OF A ROTATING INERTIAL WEIGHT ROTATES THE PARTS IN RUBBING CONTACT TO HEAT THE ENGAGED SURFACES TO A PLASTIC WELDABLE CONDITION, SAID DISCONNECT DRIVE COMPRISING, A LOAD CYLINDER ATTACHED TO THE MACHINE FRAME, A TUBULAR LOAD PISTON MOUNTED FOR AXIAL MOVEMENT WITHIN THE LOAD CYLINDER, A SPINDLE MOUNTED FOR ROTATION IN ONE END OF THE TUBULAR PISTON, AND DRIVE MEANS FOR ROTATING THE SPINDLE AND INCLUDING A COUPLING MEMBER WHICH IS AXIALLY MOVEABLE WITHIN THE TUBULAR PISTON FOR CONNECTING AND DISCONNECTING THE DRIVE MEANS AND THE SPINDLE DURING DIFFERENT PARTS OF A WELD CYCLE.
Claim 2
Dependent Claim
125 words
A DISCONNECT DRIVE FOR THE SPINDLE OF AN INERTIAL WELDING MACHINE OF THE KIND IN WHICH END SURFACES OF TWO PARTS TO BE WELDED ARE PRESSED TOGETHER WHILE THE STORED ENERGY OF A ROTATING INERTIAL WEIGHT ROTATES THE PARTS IN RUBBING CONTACT TO HEAT THE ENGAGED SURFACES TO A PLASTIC WELDABLE CONDITION, SAID DISCONNECT DRIVE COMPRISING, A LOAD CYLINDER ATTACHED TO THE MACHINE FRAME, A TUBULAR LOAD PISTON MOUNTED FOR AXIAL MOVEMENT WITHIN THE LOAD CYLINDER, A SPINDLE MOUNTED FOR ROTATION IN ONE END OF THE TUBULAR PISTON, AND DRIVE MEANS FOR ROTATING THE SPINDLE AND INCLUDING A COUPLING MEMBER WHICH IS AXIALLY MOVEABLE WITHIN THE TUBULAR PISTON FOR CONNECTING AND DISCONNECTING THE DRIVE MEANS AND THE SPINDLE DURING DIFFERENT PARTS OF A WELD CYCLE.
References Cited (Backward Citations)
US134278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |