Patent US4938839A successfully refreshed from Google Patents.
Patent US3695645A successfully refreshed from Google Patents.
US3695645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball and socket pipe joint utilizing two resilient fingers with clip spring reinforcement
Assignee: METAL MATIC Inc
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Filing: 1970-06-17
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Granted: 1972-10-03
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Expires: 1990-06-17
Abstract
Abstract The ball portion of a pipe section is received in a socket portion having a single pair of diametrically located resilient fingers. A clip spring has its ends in engagement with the two fingers to enhance the holding action thereof.
Inventors
- 👤 Adolph C Mommsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:16
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/50; F16L37/52; F16L37/08; F16L37/12; F16L37/14; F16L37/142; F16L37/144; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45005; Y10T24/45099
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A pipe joint comprising a first tubular member having a ball portion, a second tubular member having a socket portion formed with a single pair of diametrically located resilient fingers for engaging outwardly curving spaced segments of said ball portion, said fingers extending from the edge of said socket portion, and a clip spring having inwardly curved ends engaging said resilient fingers to reinforce the inherent resiliency thereof and having an integral arcuate portion intermediate said curved ends spaced outwardly with respect thereto to increase the angle through which said first tubular member can be moved relative said second tubular member in the direction of said intermediate portion.
Claim 2
Dependent Claim
108 words
A pipe joint comprising a first tubular member having a ball portion, a second tubular member having a socket portion formed with a single pair of diametrically located resilient fingers for engaging outwardly curving spaced segments of said ball portion, said fingers extending from the edge of said socket portion, and a clip spring having inwardly curved ends engaging said resilient fingers to reinforce the inherent resiliency thereof and having an integral arcuate portion intermediate said curved ends spaced outwardly with respect thereto to increase the angle through which said first tubular member can be moved relative said second tubular member in the direction of said intermediate portion.
Claim 3
Dependent Claim
23 words
A pipe joint in accordance with claim 1 in which each finger is provided with means for resisting disengagement of said spring ends.
Claim 4
Dependent Claim
29 words
A pipe joint in accordance with claim 1 in which each resilient finger is formed with a groove, the curved ends of said clip spring engaging in said grooves.
Claim 5
Dependent Claim
29 words
A pipe joint in accordance with claim 1 in which each resilient finger is formed with a detent, the curved ends of said clip spring engaging in said detents.
Claim 6
Dependent Claim
25 words
A pipe joint in accordance with claim 1 in which the length of the fingers is substantially equal to the depth of the socket portion.
Claim 7
Dependent Claim
96 words
A pipe joint comprising a first tubular member having a ball portion, a second tubular member having a socket portion formed with a single pair of diametrically located resilient fingers for engaging outwardly curving spaced segments of said ball portion, said fingers extending from the edge of said socket portion, and a clip spring having curved ends engaging said resilient fingers to reinforce the inherent resiliency thereof, each resilient finger being formed with a groove extending thereacross near its free end and each groove having a transverse slot therein receiving a portion of a spring end.
Claim 8
Dependent Claim
96 words
A pipe joint comprising a first tubular member having a ball portion, a second tubular member having a socket portion formed with a single pair of diametrically located resilient fingers for engaging outwardly curving spaced segments of said ball portion, said fingers extending from the edge of said socket portion, and a clip spring having curved ends engaging said resilient fingers to reinforce the inherent resiliency thereof, each resilient finger being formed with a groove extending thereacross near its free end and each groove having a transverse slot therein receiving a portion of a spring end.
Claim 9
Dependent Claim
123 words
A pipe joint comprising a first tubular member having a ball portion, a second tubular member having a socket portion formed with a single pair of diametrically located resilient fingers for engaging outwardly curving spaced segments of said ball portion, said fingers extending from the edge of said socket portion and having a length substantially equal to the depth of said socket portion, said edge from which said fingers extend residing in a plane at the maximum diameter location of the socket portion, and a clip spring having curved ends engaging said resilient fingers to reinForce the inherent resiliency thereof, said clip spring having an integral arcuate portion intermediate said curved ends which has a radius greater than the radius of said edge.
Claim 10
Dependent Claim
123 words
A pipe joint comprising a first tubular member having a ball portion, a second tubular member having a socket portion formed with a single pair of diametrically located resilient fingers for engaging outwardly curving spaced segments of said ball portion, said fingers extending from the edge of said socket portion and having a length substantially equal to the depth of said socket portion, said edge from which said fingers extend residing in a plane at the maximum diameter location of the socket portion, and a clip spring having curved ends engaging said resilient fingers to reinForce the inherent resiliency thereof, said clip spring having an integral arcuate portion intermediate said curved ends which has a radius greater than the radius of said edge.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |