Patent US3149581A successfully refreshed from Google Patents.
US3149581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier stop mechanism
Assignee: Udylite Corp
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Filing: 1962-11-05
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Granted: 1964-09-22
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 John V Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:20
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/0472; B65G49/0477; B65G49/0481; B65G49/049
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
IN A CONVEYING MACHINE INCLUDING A FRAME HAVING A RAIL THEREON ON WHICH A WORK CARRIER IS MOVABLY MOUNTED AND INTERMITTENTLY ADVANCED THEREALONG BY RECIPROCABLE TRANSFER MEANS TO SUCCESSIVE LONGITUDINALLY SPACED WORK STATIONS, THE IMPROVEMENT COMPRISING A CARRIER ENGAGING MECHANISM STATIONARILY POSITIONED AT ONE OF THE STATIONS FOR ENGAGING A WORK CARRIER AT THE COMPLETION OF THE ADVANCING MOVEMENT OF THE TRANSFER MEANS PREVENTING INADVERTENT FORWARD AND REARWARD TRAVEL THEREOF RELATIVE TO SAID STATION, SAID MECHANISM COMPRISING A FIRST MEMBER AND A SECOND MEMBER MOUNTED ON THE FRAME AND DISPOSED IN SPACED RELATIONSHIP LONGITUDINALLY OF THE RAIL, SAID FIRST MEMBER MOVABLE FROM A BLOCKING POSITION RELATIVE TO THE TRAILING EDGE PORTION OF A WORK CARRIER TO A CLEARANCE POSITION SPACED THEREFROM RESPONSIVE TO ADVANCEMENT OF A WORK CARRIER, SAID SECOND MEMBER MOVABLE FROM A BLOCKING POSITION RELATIVE TO THE LEADING EDGE PORTION OF A WORK CARRIER TO A CLEARANCE POSITION SPACED THEREFROM RESPONSIVE TO THE RETRACTING MOVEMENT OF THE TRANSFER MEANS, AND MEANS BIASING SAID FIRST AND SAID SECOND MEMBER TOWARD SAID BLOCKING POSITION.
Claim 2
Dependent Claim
174 words
IN A CONVEYING MACHINE INCLUDING A FRAME HAVING A RAIL THEREON ON WHICH A WORK CARRIER IS MOVABLY MOUNTED AND INTERMITTENTLY ADVANCED THEREALONG BY RECIPROCABLE TRANSFER MEANS TO SUCCESSIVE LONGITUDINALLY SPACED WORK STATIONS, THE IMPROVEMENT COMPRISING A CARRIER ENGAGING MECHANISM STATIONARILY POSITIONED AT ONE OF THE STATIONS FOR ENGAGING A WORK CARRIER AT THE COMPLETION OF THE ADVANCING MOVEMENT OF THE TRANSFER MEANS PREVENTING INADVERTENT FORWARD AND REARWARD TRAVEL THEREOF RELATIVE TO SAID STATION, SAID MECHANISM COMPRISING A FIRST MEMBER AND A SECOND MEMBER MOUNTED ON THE FRAME AND DISPOSED IN SPACED RELATIONSHIP LONGITUDINALLY OF THE RAIL, SAID FIRST MEMBER MOVABLE FROM A BLOCKING POSITION RELATIVE TO THE TRAILING EDGE PORTION OF A WORK CARRIER TO A CLEARANCE POSITION SPACED THEREFROM RESPONSIVE TO ADVANCEMENT OF A WORK CARRIER, SAID SECOND MEMBER MOVABLE FROM A BLOCKING POSITION RELATIVE TO THE LEADING EDGE PORTION OF A WORK CARRIER TO A CLEARANCE POSITION SPACED THEREFROM RESPONSIVE TO THE RETRACTING MOVEMENT OF THE TRANSFER MEANS, AND MEANS BIASING SAID FIRST AND SAID SECOND MEMBER TOWARD SAID BLOCKING POSITION.
References Cited (Backward Citations)
US2881711A
Cited
US3024740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |