US3727795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle liquid tank transport with flexible partition
Assignee: Individual
•
Filing: 1970-11-16
•
Granted: 1973-04-17
•
Expires: 1990-11-16
Abstract
Abstract A liquid tank truck provided with a split tank and a central internal gasket member having a flexible partition of high strength. The split tank is provided with an inlet and outlet in each section so that separate liquid carrying compartments are formed, each of which may alternately have a liquid carrying capacity of substantially the volume of the entire tank.
Inventors
- 👤 W Willsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:00
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/24; B60P3/246; B65; B65D; B65D88/00; B65D88/54; B65D88/58; B65D88/60; B65D88/62
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
A liquid tank transport vehicle comprising two semicylindrical sections forming a cylindrical tank when fitted together, a gasket secured between said semi-cylindrical sections and provided with a large central opening, an unstressed flexible barrier fixed to said gasket, said barrier being free-floating in the interior of said cylindrical tank selectively in either of said sections thereof, a plurality of battens secured to the lower portion of said flexible barrier so that a predetermined curvilinear shape of said barrier is maintained while said tank is being filled with liquid, and each of said semi-cylindrical sections being provided with an inlet and an outlet for the liquid.
Claim 2
Dependent Claim
105 words
A liquid tank transport vehicle comprising two semicylindrical sections forming a cylindrical tank when fitted together, a gasket secured between said semi-cylindrical sections and provided with a large central opening, an unstressed flexible barrier fixed to said gasket, said barrier being free-floating in the interior of said cylindrical tank selectively in either of said sections thereof, a plurality of battens secured to the lower portion of said flexible barrier so that a predetermined curvilinear shape of said barrier is maintained while said tank is being filled with liquid, and each of said semi-cylindrical sections being provided with an inlet and an outlet for the liquid.
Claim 3
Dependent Claim
18 words
A liquid tank transport vehicle as claimed in claim 1 wherein said flexible barrier is a flexible fiberglass.
Claim 4
Dependent Claim
19 words
A liquid tank transport vehicle as claimed in claim 1 wherein said flexible barrier is a nylon reinforced vinyl.
Claim 5
Dependent Claim
70 words
A liquid tank transport vehicle as claimed in claim 1 wherein said two semi-cylindrical sections are provided with peripheral flanges, said gasket being fixed to the periphEry of said flexible barrier, and means for securing said peripheral flanges and said gasket together to form a fluid-tight cylindrical tank in which compartments are formed for receiving alternately a volume of liquid which corresponds substantially to the entire volume of said tank.
Claim 6
Dependent Claim
67 words
A liquid tank transport vehicle as claimed in claim 1 wherein said flexible barrier is of a sufficient dimension whereby when said barrier is moved laterally to its extreme position said barrier is adjacent to the wall of one of said semi-cylindrical sections opposite to the wall of the other semi-cylindrical section being filled with liquid, said barrier remaining substantially unstressed until it reaches said extreme position.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |