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US3844089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for tank filling
Assignee: United States Department of the Army
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Filing: 1973-05-24
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Granted: 1974-10-29
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Expires: 1993-05-24
Abstract
Abstract A tool for filling tanks adapted to be threaded into the fill opening of a tank to be filled. Said tool being provided with a mandrel carrying a plug adapted to be inserted in said fill opening beneath the threaded portion thereof and a sleeve adapted to force a wedge into said plug to wedge same into said fill opening to seal same.
Inventors
- 👤 J Forry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:16
CPC Classifications
F; F17; F17C; F17C5/00; F17C5/02; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0382; F17C2227/00; F17C2227/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
A device for filling tanks comprising: a tubular housing threaded externally at both Ends, an inlet port and an outlet port adjacent the end of said housing adapted to be threaded into said tank, a sleeve slideably mounted within said housing and projecting from the outer end thereof, means for sealing between said sleeve and said housing, a mandrel slideably mounted within said sleeve, one end of said mandrel projecting inwardly toward said tank the other end projecting outwardly beyond said sleeve, means for sealing between said mandrel and said sleeve, a plug assembly releasably attached to the end of said mandrel which projects inwardly toward said tank, wedge means slideable on said mandrel and receivable within said plug, and means for moving said sleeve relative to said mandrel to force said wedge means into said plug.
Claim 2
Independent Claim
137 words
A device for filling tanks comprising: a tubular housing threaded externally at both Ends, an inlet port and an outlet port adjacent the end of said housing adapted to be threaded into said tank, a sleeve slideably mounted within said housing and projecting from the outer end thereof, means for sealing between said sleeve and said housing, a mandrel slideably mounted within said sleeve, one end of said mandrel projecting inwardly toward said tank the other end projecting outwardly beyond said sleeve, means for sealing between said mandrel and said sleeve, a plug assembly releasably attached to the end of said mandrel which projects inwardly toward said tank, wedge means slideable on said mandrel and receivable within said plug, and means for moving said sleeve relative to said mandrel to force said wedge means into said plug.
Claim 3
Dependent Claim
38 words
A device as set forth in claim 1, wherein said means for moving said sleeve relative to said mandrel is a cap adapted to be screwed onto said housing and to contact the outer edge of said sleeve.
Claim 4
Dependent Claim
20 words
A device as set forth in claim 2, wherein said plug is threaded onto the inner end of said mandrel.
References Cited (Backward Citations)
US1100439A
Cited
US3577696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |