US3817560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick disconnect swivel coupling
Assignee: Dover Corp
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Filing: 1972-09-05
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Granted: 1974-06-18
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Expires: 1992-09-05
Abstract
Abstract A quick disconnect swivel coupling for cooperatively connecting two members in rotatable fashion is disclosed. The one member carries a pair of race rings forming a ball race. The second member carries a plurality of balls for cooperative engagement with the race rings. Ball retaining means is mounted on the second member to hold balls in the race in the assembled condition and to permit the balls to be retracted from the race during the uncoupled condition.
Inventors
- 👤 R Guertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:26
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
182 words
A swivel coupling comprising a first generally cylindrical member, said member being formed with a pair of axially spaced apart external grooves, said grooves being separated by a land, a wire mounted in each groove thereby forming an annular race, a second generally cylindrical member adapted to be rotatably connected to and removable from said first member, said second member having an internal diameter greater than the external diameter of said first member for telescopic movement relative to said first member, said second member being formed with a plurality of bores extending transversely therethrough, a ball mounted in each bore and protruding therethrough inwardly to cooperatively engage said race to rotatably couple said first and second members together in the assembled condition, and ball retaining means mounted for axial movement on said second member, said retaining means urging said balls inwardly into engagement with said race in the assembled condition permitting outward movement of said balls away from said race and being retained between said second member and said retaining means when said first and second members are in the disassembled condition.
Claim 2
Dependent Claim
182 words
A swivel coupling comprising a first generally cylindrical member, said member being formed with a pair of axially spaced apart external grooves, said grooves being separated by a land, a wire mounted in each groove thereby forming an annular race, a second generally cylindrical member adapted to be rotatably connected to and removable from said first member, said second member having an internal diameter greater than the external diameter of said first member for telescopic movement relative to said first member, said second member being formed with a plurality of bores extending transversely therethrough, a ball mounted in each bore and protruding therethrough inwardly to cooperatively engage said race to rotatably couple said first and second members together in the assembled condition, and ball retaining means mounted for axial movement on said second member, said retaining means urging said balls inwardly into engagement with said race in the assembled condition permitting outward movement of said balls away from said race and being retained between said second member and said retaining means when said first and second members are in the disassembled condition.
Claim 3
Dependent Claim
52 words
The swivel coupling according to claim 1 in which each race wire is of a generally cylindrical cross section, each wire providing first cooperating ball engaging surfaces when mounted in said grooves and wherein said wires provide second cooperating ball engaging surfaces when each is mounted in the other of said grooves.
Claim 4
Dependent Claim
43 words
The swivel coupling according to claim 2 in which each ball receiving bore terminates at the inner end with a ball securing lip to prevent each of said balls from passing therethrough when said first and second members are in the disassembled condition.
Claim 5
Dependent Claim
33 words
The swivel coupling according to claim 1 in which said ball retaining means is a cylindrical ring mounted about said second member, and means for limiting the axial movement of said cylindrical ring.
Claim 6
Dependent Claim
127 words
The swivel coupling according to claim 4 in which said cylindrical ring is formed with an internal annular groove thereabout wherein said ring annular groove is axially positioned adjacent the second member ball receiving bores when said ring is at one axial position relative to said second member whereby said balls can move outwardly into said ring groove to permit disassembly of said second member from said first member and wherein said ring groove is axially displaced from said ball receiving bore at a second axial position of said ring relative to said second member whereby the inner surface of said ring engages said ball to urge said ball inwardly into engagement with the race means when said first and second members are in the assembled condition.
Claim 7
Dependent Claim
80 words
The swivel coupling according to claim 5 in which said second member is formed with an external annular groove, and in which said cylindrical ring is provided with a pair of screws protruding therethrough, said screws engaging said second member annular groove to hold said cylindrical ring in the second axial position, said screws being retracted from said annular groove when it is desired to move the said cylindrical ring from the second axial position to the first axial position.
Claim 8
Dependent Claim
87 words
The swivel coupling according to claim 6 further comprising an annular flange formed on said second member to engage said cylindrical ring and limit the axial movement of said cylindrical ring so as to position said groove adjacent the ball receiving bores, and a retaining ring mounted adjacent one end of said second member to limit axial movement of said cylindrical ring in the other direction wherein said screws are aligned with the screw receiving groove when said cylindrical ring is in engagement with said retainer ring.
Claim 9
Dependent Claim
47 words
The swivel coupling according to claim 7 in which said cylindrical ring groove is formed with a chamfered surface, said chamfered surface engaging said balls to urge said balls inwardly when said cylindrical ring is moved axially from the first axial position to the second axial position.
Claim 10
Dependent Claim
25 words
The swivel coupling according to claim 8 further comprising seal means cooperating between said first member and said second member providing a fluid seal therebetween.
Claim 11
Dependent Claim
55 words
The swivel coupling according to claim 9 in which said race wire has a generally cylindrical cross section, and in which each ball receiving bore terminates at the inner end with a ball securing lip to prevent each of said balls from passing therethrough when said first and second members are in the disassembled condition.
Claim 12
Dependent Claim
44 words
The swivel coupling according to claim 3 in which said second member inner diameter at the end having the ball receiving bores therein is larger than the external diameter of the race wires wherein clearance is provided between said second member and race wires.
Claim 13
Dependent Claim
51 words
The swivel coupling according to claim 10 in which each of said race wires provides first cooperating ball engaging surfaces when mounted in the spaced apart external grooves, said race wires providing second cooperating ball engaging surfaces when each race wire is exchanged one for the other in the external grooves.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |