US4565392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick connect coupling
Assignee: Parker Intangibles LLC
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Filing: 1984-07-09
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Granted: 1986-01-21
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Expires: 2004-07-09
Abstract
Abstract This disclosure relates to a quick connect coupling including a tubular socket or receptacle part having an internal groove formed therein, a tubular nipple or insert part having an external groove formed thereon, and a snap ring. The nipple is insertable into the socket and when so inserted the two grooves are radially aligned. The snap ring is mounted in and extends between the two grooves to lock the socket and the nipple in assembled relation. Prior to final assembly, the snap ring is positioned in the socket groove, and in the space within the socket groove and around the snap ring is applied a relatively viscous fluid. This fluid, which may be a grease, holds the snap ring in the desired position in the groove prior to and during assembly, and it also serves as a lubricant on the ring which facilitates the assembly of the parts. The disclosure also describes the method of assembly of the coupling.
Inventors
- 👤 Gerrard N. Vyse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:16
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/088; F16L2201/00; F16L2201/80; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876; Y10T403/00; Y10T403/16; Y10T403/1608; Y10T403/60
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
137 words
A quick connect coupling comprising: (a) an outer receptacle means having an internal opening and an annular outer groove formed in the inner surface of said opening; (b) an inner insert means having an annular inner groove formed in the outer surface thereof; (c) said receptacle means being adapted to be assembled with said insert means in a position where said insert means is in said opening and said inner and outer grooves are substantially radially aligned, (d) a split ring positioned in said outer groove prior to said assembly and extending between said inner and outer grooves after said assembly; and (e) a fluid at least partially filling said outer groove behind and around said ring, said fluid being sufficiently viscous to substantially hold said ring against movement in said outer groove prior to said assembly.
Claim 2
Dependent Claim
137 words
A quick connect coupling comprising: (a) an outer receptacle means having an internal opening and an annular outer groove formed in the inner surface of said opening; (b) an inner insert means having an annular inner groove formed in the outer surface thereof; (c) said receptacle means being adapted to be assembled with said insert means in a position where said insert means is in said opening and said inner and outer grooves are substantially radially aligned, (d) a split ring positioned in said outer groove prior to said assembly and extending between said inner and outer grooves after said assembly; and (e) a fluid at least partially filling said outer groove behind and around said ring, said fluid being sufficiently viscous to substantially hold said ring against movement in said outer groove prior to said assembly.
Claim 3
Dependent Claim
12 words
A coupling according to claim 1, wherein said fluid is a grease.
Claim 4
Dependent Claim
27 words
A coupling according to claim 1, wherein said coupling is adapted to be connected to carry a flow medium, and said fluid is compatible with said medium.
Claim 5
Dependent Claim
19 words
A coupling according to claim 3, wherein said medium is lubricating oil and said viscous fluid is a grease.
Claim 6
Dependent Claim
33 words
A coupling according to claim 1, wherein said ring has a gap formed therein and said gap extends over an angle of substantially 47° when said ring is in its free unflexed state.
Claim 7
Dependent Claim
27 words
A coupling according to claim 1, wherein said ring has a gap therein, and prior to said assembly said gap is positioned closely adjacent said inner surface.
Claim 8
Dependent Claim
19 words
A coupling according to claim 1, wherein prior to said assembly said gap is substantially centered in said opening.
Claim 9
Independent Claim
87 words
A method of constructing a quick connect coupling, comprising: (a) providing an outer receptacle having an internal opening and an annular outer groove formed in the inner surface of said opening; (b) providing an inner insert having an annular inner groove formed in the outer surface thereof; (c) positioning a split ring in said outer groove; and (d) at least partially filling said outer groove with a fluid around said ring, said fluid being sufficiently viscous to substantially hold said ring against movement in said outer groove.
Claim 10
Independent Claim
87 words
A method of constructing a quick connect coupling, comprising: (a) providing an outer receptacle having an internal opening and an annular outer groove formed in the inner surface of said opening; (b) providing an inner insert having an annular inner groove formed in the outer surface thereof; (c) positioning a split ring in said outer groove; and (d) at least partially filling said outer groove with a fluid around said ring, said fluid being sufficiently viscous to substantially hold said ring against movement in said outer groove.
Claim 11
Dependent Claim
20 words
A method according to claim 8, and further including the step of substantially centering the ring in the internal opening.
Claim 12
Dependent Claim
37 words
A method according to claim 8, wherein said ring is made expandable by forming a gap therein, and said ring is positioned in said outer groove by positioning said gap adjacent said inner surface of said opening.
Claim 13
Dependent Claim
30 words
A method according to claim 8, and further including the step of moving said insert into said opening to cause said ring to move into said inner and outer grooves.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |