US3612201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled platform tower
Assignee: Individual
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Filing: 1970-06-18
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Granted: 1971-10-12
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Expires: 1990-06-18
Abstract
Abstract This invention relates to a deck or work platform supported so that it can be moved in a selected direction and to a selected extent over the ground both under water and on land. It may be used on the sea bottom, particularly in an offshore location. It may also be used on tundra, muskeg, swampy locations and the like.
Inventors
- 👤 Richard H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:40
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/021; E02B17/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
206 words
In a movable platform comprising: a. a flat generally horizontal rectangular deck, b. a first set of four corner posts provided at each corner of said deck, c. each of said first corner posts including and supporting a movable ground-engaging member therein, d. means for raising and lowering each movable ground-engaging member (c) with respect to its supporting corner posts, e. a rectangular frame, f. means supporting said frame on said deck for movement selectively fore and aft of said deck and transversely of said deck, g. means for moving said frame selectively in each such direction, h. a second set of four corner posts provided at each corner of said frame, i. each of said second corner posts including and supporting a movable ground-engaging member therein, and j. means for raising and lowering each movable ground-engaging member (i) with respect to its supporting corner posts. The improvement comprising: k. track means mounted at each corner of the deck and extending transversely of the deck at each such corner, l. a movable frame Supported on the track means and movable thereon, m. and means for moving each movable frame selectively with respect to the deck, n. each movable frame supporting a member of the rectangular frame.
Claim 2
Dependent Claim
206 words
In a movable platform comprising: a. a flat generally horizontal rectangular deck, b. a first set of four corner posts provided at each corner of said deck, c. each of said first corner posts including and supporting a movable ground-engaging member therein, d. means for raising and lowering each movable ground-engaging member (c) with respect to its supporting corner posts, e. a rectangular frame, f. means supporting said frame on said deck for movement selectively fore and aft of said deck and transversely of said deck, g. means for moving said frame selectively in each such direction, h. a second set of four corner posts provided at each corner of said frame, i. each of said second corner posts including and supporting a movable ground-engaging member therein, and j. means for raising and lowering each movable ground-engaging member (i) with respect to its supporting corner posts. The improvement comprising: k. track means mounted at each corner of the deck and extending transversely of the deck at each such corner, l. a movable frame Supported on the track means and movable thereon, m. and means for moving each movable frame selectively with respect to the deck, n. each movable frame supporting a member of the rectangular frame.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |