US3628768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick connecting coupling
Assignee: PRIMORE SALES Inc
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Filing: 1970-10-16
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Granted: 1971-12-21
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Expires: 1990-10-16
Abstract
Abstract A quick connecting coupling comprising a first member having an opening therethrough providing a fluid passage. The first member has a noncircular recess at one end of said opening. A second member having a projection with a noncircular external configuration extends into the recess of the first member and sealing means are provided between the first member and said projection of the second member. The first member has spaced peripheral grooves a portion of which communicate with the opening therethrough. The second member has an annular peripheral groove therein aligned with the spaced peripheral grooves and a retaining ring having spaced legs is positioned in said spaced grooves of said first member and has portions thereof extending into said peripheral groove of the second member. The retaining ring has an encircling portion surrounding the projection and interposed between the first member and the second member. The retaining ring includes connecting portions extending from the ends of said encircling portion to the ends of the legs respectively.
Inventors
- 👤 Richard Stuart Hutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:55
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/14; F16L37/142; F16L37/144
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
200 words
In a quick connecting coupling, the combination comprising a first member having an opening therethrough providing a fluid passage, said first member having a noncircular recess at one end of said opening, a second member having a fluid passage therethrough, said second member having a projection with an external configuration, a portion of said external configuration having the noncircular cross section of said recess in said first member and being adapted to be engaged therein, sealing means between said opening and said projection of said second member, said first member having spaced peripheral grooves a portion of which communicate with the opening therethrough and are arranged transversely thereto, said second member having an annular peripheral groove therein adapted to be aligned with said spaced peripheral grooves when the members are engaged, a retaining ring having spaced legs positioned in said spaced grooves of said first member and having portions thereof extending into said peripheral groove of said second member, said retaining ring having an encircling portion surrounding the projection and interposed between the first member and the second member, said retaining ring including connecting portions extending from the ends of said encircling portion to the ends of the legs respectively.
Claim 2
Dependent Claim
200 words
In a quick connecting coupling, the combination comprising a first member having an opening therethrough providing a fluid passage, said first member having a noncircular recess at one end of said opening, a second member having a fluid passage therethrough, said second member having a projection with an external configuration, a portion of said external configuration having the noncircular cross section of said recess in said first member and being adapted to be engaged therein, sealing means between said opening and said projection of said second member, said first member having spaced peripheral grooves a portion of which communicate with the opening therethrough and are arranged transversely thereto, said second member having an annular peripheral groove therein adapted to be aligned with said spaced peripheral grooves when the members are engaged, a retaining ring having spaced legs positioned in said spaced grooves of said first member and having portions thereof extending into said peripheral groove of said second member, said retaining ring having an encircling portion surrounding the projection and interposed between the first member and the second member, said retaining ring including connecting portions extending from the ends of said encircling portion to the ends of the legs respectively.
Claim 3
Dependent Claim
26 words
The combination set forth in claim 1 wherein said projection includes a generally cylindrical end portion and an outwardly tapered portion extending to said noncircular portion.
Claim 4
Dependent Claim
33 words
The combination set forth in claim 2 wherein said sealing means comprises flexible sealing rings interposed between the cylindrical portion of said second member and a mating cylindrical portion of said first member.
Claim 5
Dependent Claim
17 words
The combination set forth in claim 1 wherein the noncircular recess and the noncircular portion are polygonal.
Claim 6
Dependent Claim
28 words
The combination set forth in claim 1 wherein said peripheral groove in said projection has a generally cylindrical base and sidewalls at generally right angles to said base.
Claim 7
Dependent Claim
20 words
The combination set forth in claim 1 wherein said portion of said legs which engages the peripheral groove are arcuate.
Claim 8
Dependent Claim
45 words
The combination set forth in claim 1 wherein said encircling portion of said retaining ring has spaced ends, the ends of said encircling portion being spaced from one another a distance less than the diameter of the base of the peripheral groove in said projection.
Claim 9
Dependent Claim
19 words
The combination set forth in claim 7 wherein said noncircular recess and noncircular portion of said projection are hexagonal.
Claim 10
Dependent Claim
55 words
The combination set forth in claim 1 wherein said first member is mounted on a refrigeration unit, said second member comprising a refrigeration valve including a valve body extending at an angle to said projection, said valve body having a fluid passage therein communicating with said opening in said projection and forming an angle therewith.
Claim 11
Dependent Claim
18 words
The combination set forth in claim 9 wherein said first member is removably mounted on said refrigeration unit.
Claim 12
Dependent Claim
31 words
The combination set forth in claim 10 including bolts for retaining said first member on said refrigeration unit, said first member having portions thereof cutaway to provide access to said boLts.
Claim 13
Dependent Claim
22 words
The combination set forth in claim 1 wherein said first and second member comprises coupling members adapted to be attached to tubes.
Claim 14
Dependent Claim
20 words
The combination set forth in claim 1 wherein said retaining ring is made of material having substantially rectangular cross section.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |