Patent US3618801A successfully refreshed from Google Patents.
US3618801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination tank-trailer assembly
Assignee: Schlumberger Technology Corp
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Filing: 1970-05-08
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Granted: 1971-11-09
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Expires: 1990-05-08
Abstract
Abstract The invention concerns a tank-erecting trailer unit in which the trailer may be hauled to the location when the tank is to be erected, and then the trailer is pivoted at its hinge point by cable means to raise the tank to a vertical position. The cable means extend between the rear of the trailer and a winch located at or near the forward end of the trailer.
Inventors
- 👤 Donald E Blanchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:25
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/16; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807; B62D53/0821; Y; Y10; Y10S; Y10S414/00; Y10S414/132
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
A tank-trailer assembly for hauling tanks and then setting such tanks in operating position at a predetermined location, comprising a trailer assembly having a forward and rear section pivotally joined together in end-to-end relationship, said rear section having a wheel and axle assembly coupled thereto at the end part which is remote from said forward section, a leg assembly, having an upper and lower end, said leg assembly being pivotally mounted at said upper end to said rear section, said leg assembly having position-restraining means coupled thereto and having a cable-receiving element at its lower end, cable means coupled between the wheeled end part of said rear section and a position substantially forward of said leg assembly and passing under said cable-receiving element, said cable-receiving element being a pivot point along said cable, and reeling means for shortening said cable whereby the rear section is initially boosted by said leg and said cable and continued shortening of said cable pivotalLy elevates the rear section to an unloading position wherein said cable-receiving means is a sheave unit.
Claim 2
Dependent Claim
176 words
A tank-trailer assembly for hauling tanks and then setting such tanks in operating position at a predetermined location, comprising a trailer assembly having a forward and rear section pivotally joined together in end-to-end relationship, said rear section having a wheel and axle assembly coupled thereto at the end part which is remote from said forward section, a leg assembly, having an upper and lower end, said leg assembly being pivotally mounted at said upper end to said rear section, said leg assembly having position-restraining means coupled thereto and having a cable-receiving element at its lower end, cable means coupled between the wheeled end part of said rear section and a position substantially forward of said leg assembly and passing under said cable-receiving element, said cable-receiving element being a pivot point along said cable, and reeling means for shortening said cable whereby the rear section is initially boosted by said leg and said cable and continued shortening of said cable pivotalLy elevates the rear section to an unloading position wherein said cable-receiving means is a sheave unit.
Claim 3
Dependent Claim
15 words
An assembly in accordance with claim 1, wherein said reeling means is a power winch.
Claim 4
Dependent Claim
15 words
An assembly in accordance with claim 1, wherein said cable-receiving means is a sheave unit.
Claim 5
Dependent Claim
26 words
An assembly in accordance with claim 1, wherein said position-restraining means is a chain coupled between the frame of said rear section and said leg assembly.
Claim 6
Dependent Claim
21 words
An assembly in accordance with claim 1, wherein said leg assembly when in operating position leans slightly towards said forward section.
Claim 7
Dependent Claim
16 words
An assembly in accordance with claim 1, wherein a tank is coupled to said rear section.
References Cited (Backward Citations)
US2769661A
Cited
US3448866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |