Patent US4449737A successfully refreshed from Google Patents.
US4449737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose coupler locking arrangement
Assignee: Hoover Co
•
Filing: 1982-05-07
•
Granted: 1984-05-22
•
Expires: 2002-05-07
Abstract
Abstract A hose coupling latching arrangement is disclosed in which a resilient bendable member engages with an abutment to prevent the coupling from turning to a release position.
Inventors
- 👤 Glenn E. Specht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:13
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/008; A; A47; A47L; A47L9/00; A47L9/24; A47L9/242
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A coupling arrangement including; (a) a female coupling part, (b) a male coupling part, (c) said male coupling part disposed in said female coupling part, (d) one of said coupling parts being rotatable to uncouple said male and female coupling parts, and (e) one of said coupling parts extending axially and including a cantilevered, deformable straight finger formed integral with it to project transversely from said one of said coupling parts, said straight, transversely extending finger engaging an abutment fixed relative to the other of said coupling parts to prevent said relative rotation between said coupling parts, said finger being deformable away from said abutment to allow relative rotation of said coupling parts.
Claim 2
Dependent Claim
113 words
A coupling arrangement including; (a) a female coupling part, (b) a male coupling part, (c) said male coupling part disposed in said female coupling part, (d) one of said coupling parts being rotatable to uncouple said male and female coupling parts, and (e) one of said coupling parts extending axially and including a cantilevered, deformable straight finger formed integral with it to project transversely from said one of said coupling parts, said straight, transversely extending finger engaging an abutment fixed relative to the other of said coupling parts to prevent said relative rotation between said coupling parts, said finger being deformable away from said abutment to allow relative rotation of said coupling parts.
Claim 3
Dependent Claim
34 words
The coupling arrangement of claim 1 wherein: (a) said male coupling includes a rounded portion, (b) said transversely extending cantilevered finger extends tangentially from said rounded portion for ease in deformation of said finger.
Claim 4
Dependent Claim
54 words
The coupling arrangement of claim 1 wherein; (a) a cleaner casing is provided, (b) said female coupling is formed in said casing and said abutment is formed on said casing, (c) whereby said male coupling may be coupled with said female coupling to provide confluent connection between said male coupling and said cleaner casing.
References Cited (Backward Citations)
US873892A
Cited
US2315981A
Cited
US3674287A
Cited
US3874024A
Cited
US3869751A
Cited
US4017937A
Cited
US4129323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |