Patent US4606306A successfully refreshed from Google Patents.
Patent US3199342A successfully refreshed from Google Patents.
US3199342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zipper tester
Assignee: S EDWIN SNAIR
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Filing: 1962-03-13
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Granted: 1965-08-10
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Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Snair S Edwin
- 👤 Melvin I Lipshutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:47
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/14; A; A44; A44B; A44B19/00; A44B19/42; B; B21; B21D; B21D53/00; B21D53/46; B21D53/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A DEVICE FOR DETECTING FLAWS IN TAPE MATERIAL AND THE LIKE WHICH COMPRISES, A FRAME SUPPORTING A ROTATABLY MOUNTED SHAFT, MEANS FOR ROTATING SAID SHAFT, A CYLINDER MOUNTED ON SAID SHAFT, A CIRCULAR DISC MOUNTED ON SAID SHAFT AND SPACED AXIALLY FROM SAID CYLINDER, SAID CYLINDER HAVING RADIALLY DISPOSED ABOUT AN EDGE FACE THEREOF ADJACENT SAID CIRCULAR DISC A GRIPPING FINGER ASSEMBLY COMPRISING A PLURALITY OF GRIPPING FINGERS EACH MOUNTED ON A SLIDABLE PIN EXTENDING THROUGH THE CYLINDER AND PARALLEL TO ITS AXIS, EACH OF SAID PINS HAVING GRIPPING MEANS ON ONE END AND CAM FOLLOWER MEANS ON ITS OPPOSITE END OUTSIDE THE CYLINDER, MEANS OPRABLY ASSOCIATED WITH EACH PIN FOR BIASING EACH GRIPPING FINGER IN HOME POSITION TOWARDS THE CIRCULAR DISC, MEANS FOR FEEDING TAPE MATERIAL IN A PATH BELOW THE CYLINDER BUT BETWEEN THE GRIPPING MEANS AND THE CIRCULAR DISC, ROTATABLE IDLER MEANS FOR MAINTAINING A PORTION OF THE TAPE MATERIAL IN CONTACT AGAINST THE SURFACE OF THE DISC AND AGAINST A GRIPPING FINGER, CAM ACTUATING MEANS ADAPTED TO CONTACT THE CAM
Claim 2
Independent Claim
174 words
A DEVICE FOR DETECTING FLAWS IN TAPE MATERIAL AND THE LIKE WHICH COMPRISES, A FRAME SUPPORTING A ROTATABLY MOUNTED SHAFT, MEANS FOR ROTATING SAID SHAFT, A CYLINDER MOUNTED ON SAID SHAFT, A CIRCULAR DISC MOUNTED ON SAID SHAFT AND SPACED AXIALLY FROM SAID CYLINDER, SAID CYLINDER HAVING RADIALLY DISPOSED ABOUT AN EDGE FACE THEREOF ADJACENT SAID CIRCULAR DISC A GRIPPING FINGER ASSEMBLY COMPRISING A PLURALITY OF GRIPPING FINGERS EACH MOUNTED ON A SLIDABLE PIN EXTENDING THROUGH THE CYLINDER AND PARALLEL TO ITS AXIS, EACH OF SAID PINS HAVING GRIPPING MEANS ON ONE END AND CAM FOLLOWER MEANS ON ITS OPPOSITE END OUTSIDE THE CYLINDER, MEANS OPRABLY ASSOCIATED WITH EACH PIN FOR BIASING EACH GRIPPING FINGER IN HOME POSITION TOWARDS THE CIRCULAR DISC, MEANS FOR FEEDING TAPE MATERIAL IN A PATH BELOW THE CYLINDER BUT BETWEEN THE GRIPPING MEANS AND THE CIRCULAR DISC, ROTATABLE IDLER MEANS FOR MAINTAINING A PORTION OF THE TAPE MATERIAL IN CONTACT AGAINST THE SURFACE OF THE DISC AND AGAINST A GRIPPING FINGER, CAM ACTUATING MEANS ADAPTED TO CONTACT THE CAM
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |