Patent US3926458A successfully refreshed from Google Patents.
US3926458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing adaptor
Assignee: DRYDEN Corp 5707 PARK PLAZA COURT PO BOX 20591 A CORP OF
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Filing: 1974-01-08
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Granted: 1975-12-16
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Expires: 1994-01-08
Abstract
Abstract An adapter for connection between different sizes of tubing is of flexible resilient material having a cup-shaped body and an aperture in the closed end (bottom) of the cup, with that end being shaped to provide a collar or flange at the aperture and which extends away from the cup, facilitating inversion to accommodate insertion of a smaller tube, and then reversion to the original configuration but surrounding the tube and providing a tape receiving surface providing a secure, gas-tight connection.
Inventors
- 👤 Gale E Dryden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:20
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
An adapter for connections between two tubes of different sizes comprising: a generally circular cup-shaped body of flexible resilient material, said body in its relaxed condtition having a top and bottom, with a large open end at the top, and an aperture in the bottom, said aperture having a flange extending axially from the bottom in a direction away from the open end of the cup; the material thickness at the aperture being less than the thickness at the open end; the bottom varying in thickness from a minimum at the aperture to a maximum at the outer circumference of the bottom; said bottom being generally funnel-shaped, and the bottom, including the flange, being invertible upon insertion of a tube therein having an outside diameter greater than the inside diameter of the flange, and returnable to its normal direction of extension upon removal of the tube.
Claim 2
Dependent Claim
146 words
An adapter for connections between two tubes of different sizes comprising: a generally circular cup-shaped body of flexible resilient material, said body in its relaxed condtition having a top and bottom, with a large open end at the top, and an aperture in the bottom, said aperture having a flange extending axially from the bottom in a direction away from the open end of the cup; the material thickness at the aperture being less than the thickness at the open end; the bottom varying in thickness from a minimum at the aperture to a maximum at the outer circumference of the bottom; said bottom being generally funnel-shaped, and the bottom, including the flange, being invertible upon insertion of a tube therein having an outside diameter greater than the inside diameter of the flange, and returnable to its normal direction of extension upon removal of the tube.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |