US3138286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for assembling fastener units
Assignee: L J BARWOOD Manufacturing CO Inc
•
Filing: 1961-02-15
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Granted: 1964-06-23
•
Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 Warren B Schott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:23
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
AN ASSEMBLING MACHINE FOR SCREWS AND COMPOSITE WASHERS HAVING A PLASTIC SEALING RING, INCLUDING A RACEWAY HAVING RAILS SPACED APART TO SUPPORT A ROW OF WASHERS BY THEIR RIMS ALONE WHILE LEAVING THEIR SEALING RINGS MOVABLE IN OPEN SPACE BETWEEN THE RAILS, A SMOOTH FEED BELT OPERATING IN THE SPACE BETWEEN THE RAILS IN FRICTIONAL CONTACT WITH THE SEALING RINGS OF WASHERS IN THE RACEWAY, AN OVERHEAD HOLD-DOWN RAIL FOR MAINTAINING THE WASHERS IN SLIDING POSITION UPON THE RAILS OF THE RACEWAY, SPRING MEANS FOR PRESSING THE FEED BELT UPWARDLY AGAINST THE ROW OF WASHERS ON THE RAILS OF THE RACEWAY, AND A HOLD DOWN FOOT MOVABLE AT ONE SIDE OF THE HOLD DOWN RAIL FOR TEMPORARILY CLAMPING THE WASHER BENEATH IT TO THE RACEWAY WHILE THE FEED BELT CONTINUES TO RUN.
Claim 2
Dependent Claim
132 words
AN ASSEMBLING MACHINE FOR SCREWS AND COMPOSITE WASHERS HAVING A PLASTIC SEALING RING, INCLUDING A RACEWAY HAVING RAILS SPACED APART TO SUPPORT A ROW OF WASHERS BY THEIR RIMS ALONE WHILE LEAVING THEIR SEALING RINGS MOVABLE IN OPEN SPACE BETWEEN THE RAILS, A SMOOTH FEED BELT OPERATING IN THE SPACE BETWEEN THE RAILS IN FRICTIONAL CONTACT WITH THE SEALING RINGS OF WASHERS IN THE RACEWAY, AN OVERHEAD HOLD-DOWN RAIL FOR MAINTAINING THE WASHERS IN SLIDING POSITION UPON THE RAILS OF THE RACEWAY, SPRING MEANS FOR PRESSING THE FEED BELT UPWARDLY AGAINST THE ROW OF WASHERS ON THE RAILS OF THE RACEWAY, AND A HOLD DOWN FOOT MOVABLE AT ONE SIDE OF THE HOLD DOWN RAIL FOR TEMPORARILY CLAMPING THE WASHER BENEATH IT TO THE RACEWAY WHILE THE FEED BELT CONTINUES TO RUN.
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |