US3137876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dock leveler construction
Assignee: LOOMIS MACHINE CO
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Filing: 1961-03-03
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Granted: 1964-06-23
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
- 👤 Loomis Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:35
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/2805; B65G69/2811; B65G69/2835; B65G69/2841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DOCK LEVELER CONSTRUCTION ADAPTED TO BRIDGE A SPACE BETWEEN A DOCK AND A CARRIER TO BE LOADED OR UNLOADED AT SAID DOCK, SAID CONSTRUCTION COMPRISING A SUPPORT MEMBER; A PLATFORM MEMBER HINGEDLY MOUNTED AT ITS REARWARD END FOR SWINGING MOVEMENTS BETWEEN RAISED AND LOWERED POSITIONS; FIRST TRACK MEANS SUPPORTED ON SAID PLATFORM MEMBER BETWEEN THE LATTER AND SAID SUPPORT MEMBER; SECOND TRACK MEANS SUPPORTED ON SAID SUPPORT MEMBER BETWEEN THE LATTER AND SAID PLATFORM MEMBER, AT LEAST ONE OF SAID TRACK MEANS HAVING A CAM SURFACE THEREON FORMED ON A RISE FROM ITS SUPPORT IN A DIRECTION TOWARD THE REARWARD END OF SAID PLATFORM MEMBER; FOLLOWER MEANS INTERPOSED BETWEEN SAID MEMBERS IN ENGAGEMENT WITH SAID CAM SURFACE AND WITH THE OTHER OF SAID TRACK MEANS; MEANS MOUNTING SAID FOLLOWER MEANS FOR MOVEMENT TOWARD AND AWAY FROM THE REARWARD END OF SAID PLATFORM MEMBER; AND YIELDABLE MEANS ACTING ON SAID FOLLOWER MEANS AND URGING THE LATTER IN A DIRECTION TOWARD THE REARWARD END OF SAID PLATFORM MEMBER WHEN THE LATTER IS IN ITS LOWERED POSITION.
Claim 2
Dependent Claim
175 words
A DOCK LEVELER CONSTRUCTION ADAPTED TO BRIDGE A SPACE BETWEEN A DOCK AND A CARRIER TO BE LOADED OR UNLOADED AT SAID DOCK, SAID CONSTRUCTION COMPRISING A SUPPORT MEMBER; A PLATFORM MEMBER HINGEDLY MOUNTED AT ITS REARWARD END FOR SWINGING MOVEMENTS BETWEEN RAISED AND LOWERED POSITIONS; FIRST TRACK MEANS SUPPORTED ON SAID PLATFORM MEMBER BETWEEN THE LATTER AND SAID SUPPORT MEMBER; SECOND TRACK MEANS SUPPORTED ON SAID SUPPORT MEMBER BETWEEN THE LATTER AND SAID PLATFORM MEMBER, AT LEAST ONE OF SAID TRACK MEANS HAVING A CAM SURFACE THEREON FORMED ON A RISE FROM ITS SUPPORT IN A DIRECTION TOWARD THE REARWARD END OF SAID PLATFORM MEMBER; FOLLOWER MEANS INTERPOSED BETWEEN SAID MEMBERS IN ENGAGEMENT WITH SAID CAM SURFACE AND WITH THE OTHER OF SAID TRACK MEANS; MEANS MOUNTING SAID FOLLOWER MEANS FOR MOVEMENT TOWARD AND AWAY FROM THE REARWARD END OF SAID PLATFORM MEMBER; AND YIELDABLE MEANS ACTING ON SAID FOLLOWER MEANS AND URGING THE LATTER IN A DIRECTION TOWARD THE REARWARD END OF SAID PLATFORM MEMBER WHEN THE LATTER IS IN ITS LOWERED POSITION.
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) | 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 |