Patent EP0146997A1 successfully refreshed from Google Patents.
EP0146997A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements in or relating to tube couplings
Assignee: Individual
•
Filing: 1984-01-03
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Granted: —
•
Expires: 2004-01-03
Abstract
Abstract The disclosure relates to a tube coupling for gripping a tube comprising a body (10) having a bore (13) to receive a tube from one end of the bore and a releasable collet form locking device (12) in the bore to lock the tube in the bore to receive the tube inserted into the bore from one end (29) of the body to prevent withdrawal of the tube and a filter element (35, 36) extending across the bore at a location spaced from the locking device to filter a medium flowing in the bore.
Inventors
- 👤 John Derek Guest
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:27
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/092; F16L37/0925; F16L37/0927; F16L55/00; F16L55/24
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
84 words
A tube coupling for gripping a tube comprising a body member (10) with a bore (13) to receive a tube and a releasable locking device (12) in the bore to permit a tube to be inserted into the bore in one direction from one end (29) of the body and to prevent withdrawal of the tube in the opposite direction until released and a filter element (35,37,40,47) disposed in the bore spaced from the locking device to filter a medium flowing in the bore.
Claim 2
Dependent Claim
84 words
A tube coupling for gripping a tube comprising a body member (10) with a bore (13) to receive a tube and a releasable locking device (12) in the bore to permit a tube to be inserted into the bore in one direction from one end (29) of the body and to prevent withdrawal of the tube in the opposite direction until released and a filter element (35,37,40,47) disposed in the bore spaced from the locking device to filter a medium flowing in the bore.
Claim 3
Dependent Claim
36 words
A tube coupling as claimed in claim 1 wherein the filter comprises a wall (35) extending across the bore (13) having a passageway or passageways (36) through the wall for flow of medium through the bore.
Claim 4
Dependent Claim
20 words
A tube coupling as claimed in claim 2 wherein the wall (35) is formed integrally with the body member (10).
Claim 5
Dependent Claim
27 words
A tube coupling as claimed in claim 1 or claim -2 wherein the passageways (36) through the filter wall (35) comprise spaced holes extending through the wall.
Claim 6
Dependent Claim
45 words
A tube coupling as claimed in claim 1 or claim 2 wherein the filter element (37) is cup-shaped, the rim (39) of the cup being mounted around the bore (13) in the body member and the base (38) of the cup extending across the bore.
Claim 7
Dependent Claim
28 words
A tube coupling as claimed in claim 5 wherein the rim (39) of the cup is an interference fit in the bore (13) in the body member (10).
Claim 8
Dependent Claim
81 words
A tube coupling as claimed in claim 5 wherein the bore (13) has an annular step (14) spaced from the releasable clamping device (12) in the bore and facing towards said one end (29) of the body to receive an end of a tube to be mounted in the body and the filter (37) is formed with a flange (46) around its peripheral rim to engage the step and be retained by an end of a tube inserted in the body.
Claim 9
Dependent Claim
32 words
A tube coupling as claimed in any of the preceding claims wherein the filter is formed from a sintered metal, a porous plastics, an apertured plastics moulding, wire mesh or a spring.
Claim 10
Dependent Claim
39 words
A tube coupling as claimed in claim 8 and in the case where the filter is formed from a plastics material, wherein the body is also formed from a plastics material and the filter is welded to the body.
Claim 11
Dependent Claim
16 words
A tube coupling as claimed in claim 8 wherein the spring is a spiral spring (47).
Claim 12
Dependent Claim
40 words
A tube coupling as claimed in claim 10 wherein the bore (13) of the body (10) is formed with a groove or grooves to receive the outer turns of the spiral spring to support the spring (47) in the body.
Claim 13
Dependent Claim
48 words
A tube coupling as claimed in any of the preceding claims having special releasable clamping devices (12) to hold the tubular members inserted in the bore (13) in the body (10) from either end thereof and the filter (47) is disposed in the body between the clamping devices.
References Cited (Backward Citations)
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Cited
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US2059017A
Cited
US2153664A
Cited
US2446256A
Cited
FR1533681A
Cited
FR2069271A5
Cited
US3703913A
Cited
DE2316453B2
Cited
GB1491703A
Cited
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