Patent US2461330A successfully refreshed from Google Patents.
Patent US3892431A successfully refreshed from Google Patents.
US3892431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air hose anti-disconnect
Assignee: CHESAPEAKE AND OHIO RAILWAY Co
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Filing: 1973-12-13
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Granted: 1975-07-01
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Expires: 1993-12-13
Abstract
Abstract An air hose anti-disconnect is provided for rotatably interlocking coupling halves or housings which couple respective air hoses. The anti-disconnect utilizes a movable pin which is urged outwardly by a spring to prevent inadvertent rotational disengagement of the coupling halves while not impeding disengagement caused by applying longitudinal or axial forces to the air hoses. The movable pin may also be urged inwardly against the spring to enable the halves to become rotatably disengaged by hand.
Inventors
- 👤 Larry H Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/58; B60D1/62; B60T; B60T17/00; B60T17/04; B60T17/043; F; F16; F16L; F16L37/00; F16L37/24; F16L37/256
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
231 words
An interlocking hose coupling having at least first and second rotatably engaging housings which couple respectively associated hoses, said coupling being disengageable when sufficient separating forces are exerted axially along said hoses, said coupling comprising: a. a first stop means disposed on said first housing arranged to contact said second housing and to thereby impede rotation of said second housing with respect to said first housing when said second housing is rotated in a first direction so that said housings do not become inadvertently separated by rotational movement in said first direction; and b. a second releasable stop means permanently secured to one of said housings and normally urged to a position for contacting the other housing and thereby impeding rotation of said second housing with respect to said first housing when said second housing is rotated in a second direction so that said housings do not become inadvertently separated by rotational movement in said second direction; wherein said first and second stop means limit rotational movement in said first and second directions to a predetermined rotational arc when said housings are rotatably engaged; wherein said second releasable stop means controllably permits the rotational disengagement of said second housing from said first housing when actuated; and wherein neither of said first and second stop means impedes separation of said first and second housings by separating forces exerted axially along said hoses.
Claim 2
Dependent Claim
231 words
An interlocking hose coupling having at least first and second rotatably engaging housings which couple respectively associated hoses, said coupling being disengageable when sufficient separating forces are exerted axially along said hoses, said coupling comprising: a. a first stop means disposed on said first housing arranged to contact said second housing and to thereby impede rotation of said second housing with respect to said first housing when said second housing is rotated in a first direction so that said housings do not become inadvertently separated by rotational movement in said first direction; and b. a second releasable stop means permanently secured to one of said housings and normally urged to a position for contacting the other housing and thereby impeding rotation of said second housing with respect to said first housing when said second housing is rotated in a second direction so that said housings do not become inadvertently separated by rotational movement in said second direction; wherein said first and second stop means limit rotational movement in said first and second directions to a predetermined rotational arc when said housings are rotatably engaged; wherein said second releasable stop means controllably permits the rotational disengagement of said second housing from said first housing when actuated; and wherein neither of said first and second stop means impedes separation of said first and second housings by separating forces exerted axially along said hoses.
Claim 3
Dependent Claim
30 words
The device of claim 1 wherein said releasable stop means comprises a movable detent depressible inwardly and normally urged outwardly through a bore disposed in said one of said housings.
Claim 4
Dependent Claim
19 words
The device of claim 2 wherein said movable detent is spring biased so that it is normally urged outwardly.
Claim 5
Dependent Claim
105 words
The device of claim 3 wherein a retaining pin disposed in one of said housings is inserted through a slot in said movable detent, said pin and slot limiting the maximum inward and outward positions of said movable detent, the normally urged outward position locating said movable detent so that it will contact and thereby prevent said second housing from becoming rotatably disengaged from said first housing, said movable detent also being manually depressible inwardly against said spring bias to permit said second housing to become rotatably displaced over said movable detent so that said second housing may become rotatably disengaged from said first housing.
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) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |