Patent EP0255368A1 successfully refreshed from Google Patents.
EP0255368A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tube couplings
Assignee: Individual
•
Filing: 1987-07-29
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Granted: —
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Expires: 2007-07-29
Abstract
Abstract The disclosure relates to a tube coupling having a body (12) with a throughway open at one or both ends (14) to receive a tube (11). A collet (25) is located in the throughway and a plurality of resilient fingers (27) which engage an internal cam surface (23) tapering in one direction towards said one end of the throughway to compress the fingers against the tube to grip and hold the tube when the collet is drawn in said one direction with the tube. An end (25a) of the collet projects from the throughway and can be depressed into the throughway to release a tube therefrom and an end cap (30) is detachably mounted on the body to cover said open end of the throughway. The end cap has manually operable radially movable presser members (37, 38) for engaging the end (25a) of the collet projecting from the throughway for urging the collet into the throughway to release a tube from the body.
Inventors
- 👤 John Derek Guest
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/092; F16L37/0927
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
136 words
A tube coupling comprising a body having a throughway open at one end to receive a tube, a sleeve in the throughway projecting from said one end of the throughway, and through which a tube may extend into the throughway, gripping means in the throughway arranged to be releasable by depressing the projecting end of the sleeve into the throughway to allow a tube to be withdrawn from the body and an end cap detatchably mounted on the body to cover said open end of the throughway, the end cap having a aperture through which a tube can extend into the throughway and having manually operable means for engaging the projecting end of the sleeve to depress the sleeve into the throughway and thereby release the tubing, gripping means to allow the tube to be withdrawn.
Claim 2
Dependent Claim
136 words
A tube coupling comprising a body having a throughway open at one end to receive a tube, a sleeve in the throughway projecting from said one end of the throughway, and through which a tube may extend into the throughway, gripping means in the throughway arranged to be releasable by depressing the projecting end of the sleeve into the throughway to allow a tube to be withdrawn from the body and an end cap detatchably mounted on the body to cover said open end of the throughway, the end cap having a aperture through which a tube can extend into the throughway and having manually operable means for engaging the projecting end of the sleeve to depress the sleeve into the throughway and thereby release the tubing, gripping means to allow the tube to be withdrawn.
Claim 3
Dependent Claim
100 words
A tube coupling as claimed in Claim 1, wherein the sleeve and gripping means comprise a collet extending into one end of the throughway, and having a plurality of resilient fingers extending along the throughway, and the throughway has an internal cam surface tapering in one direction towards said one end thereof to compress the fingers against a tube within the collet to grip and hold the tube when the collet is drawn towards said one end of the throughway and to release the tube when the collet is depressed into the throughway by said means on the end cap.
Claim 4
Dependent Claim
177 words
A tube coupling comprising a body having a throughway open at one end to receive a tube, a collet in said one end of the throughway through which a tube may extend into the throughway, the collet having a plurality of resilient fingers and the throughway having an internal cam surface tapering in one direction towards said one end of the throughway to compress the fingers against the tube to grip and hold the tube when the collet is drawn in said one direction with the tube, the collet having an end part which projects from said one end of the throughway and which can be depressed into the throughway to release a tube therefrom and an end cap detachably mounted on the body to cover said open end of the throughway, the end cap having an aperture through which a tube can extend into the throughway and having manually operable means for engaging the end of the collet projecting from the throughway for urging the collet into the throughway to release a tube from the body.
Claim 5
Dependent Claim
177 words
A tube coupling comprising a body having a throughway open at one end to receive a tube, a collet in said one end of the throughway through which a tube may extend into the throughway, the collet having a plurality of resilient fingers and the throughway having an internal cam surface tapering in one direction towards said one end of the throughway to compress the fingers against the tube to grip and hold the tube when the collet is drawn in said one direction with the tube, the collet having an end part which projects from said one end of the throughway and which can be depressed into the throughway to release a tube therefrom and an end cap detachably mounted on the body to cover said open end of the throughway, the end cap having an aperture through which a tube can extend into the throughway and having manually operable means for engaging the end of the collet projecting from the throughway for urging the collet into the throughway to release a tube from the body.
Claim 6
Dependent Claim
59 words
A tube coupling as claimed in any of the preceding claims, wherein the cap has a skirt closed at one end by an end wall having an aperture through which a tube may extend and adapted at the other end to mount on the body and the manually operable release means are mounted on the skirt of the cap.
Claim 7
Dependent Claim
86 words
A tube coupling as claimed in claim 4, wherein the manually operable release means comprise a presser member or members extending through the skirt, the or each member having a cam face at the end within the skirt to engage said projecting end of the sleeve and having an end projecting outwardly of the skirt to which pressure may be manually applied to force the member inwardly to cause the cam surface thereof to engage and depress the sleeve inwardly into the throughway of the body.
Claim 8
Dependent Claim
20 words
A tube coupling as claimed in claim 5, wherein two presser members are provided at opposite locations around the skirt.
Claim 9
Dependent Claim
77 words
A tube coupling as claimed in claim 5 or claim 6, wherein the or each presser member is formed integrally with the wall of the skirt and the skirt has a pair of slots extending around the skirt by the side of the presser member to provide webs supporting the presser member between the slot, the webs being resiliently flexible to permit the presser member to be depressed inwardly of the skirt to act on the collet.
Claim 10
Dependent Claim
25 words
A tube coupling as claimed in claim 7 wherein the or each presser member is mounted in cantilever manner in the wall of the skirt.
Claim 11
Dependent Claim
30 words
A tube coupling as claimed in claim 8, wherein the cantilever is formed by a portion of the skirt between the presser member and the open end of the skirt.
Claim 12
Dependent Claim
64 words
A tube coupling as claimed in any of claims 5 to 9 wherein the cam surface at the inner end of the presser member is formed by an angled face between the side of the presser member adjacent the open end of the throughway and the inner end of the presser member to bear against the end of the sleeve projecting from the throughway.
Claim 13
Dependent Claim
44 words
A tube coupling as claimed in any of claims 5 to 10, wherein the inner end of the presser member is concavely curved to fit around the tube within the end cap when the presser member is depressed inwardly to act on the sleeve.
Claim 14
Dependent Claim
63 words
A tube coupling as claimed in any of the preceding claims, wherein the open end of the cap is formed with an inwardly projecting lip around its inner periphery to engage in a corresponding groove in the outer periphery of the body to locate the cap on the body with the end wall of the cap spaced from the end of the body.
Claim 15
Dependent Claim
37 words
A tube coupling as claimed in any of the preceding claims, wherein the skirt is formed with an upstanding projection to one side of the or each presser member to protect the presser member against inadvertent depression.
Claim 16
Dependent Claim
31 words
A tube coupling as claimed in claim 13, wherein the raised projection or projections are formed by an extension or extensions of the end wall opposite the presser member or members.
References Cited (Backward Citations)
EP0113528A1
Cited
GB2165604A
Cited
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