US4638668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurement coupling for fluidic systems
Assignee: Hydrotechnik GmbH
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Filing: 1984-11-19
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Granted: 1987-01-27
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Expires: 2004-11-19
Abstract
Abstract The invention relates to a measurement coupling for fluid systems, for taking working pressures or temperatures of the fluid media, consisting of a coupling bushing which is under duct pressure in the built-in state, and in the bore of which is arranged a spring-loaded and mechanically actuatable check valve, the check valve being constructed as a valve body provided with a cylindrical bore and a closed bottom face, the end of the coupling bushing facing the fluid system being prolonged beyond the valve body. A radial transverse bore or a radial slot is located in the wall of the valve body. In a further embodiment of the invention, the radial transverse bore or the transverse slot is formed in the wall of the guide part of the valve body and a flow slot channel is formed between the valve body and the coupling bushing as far as the radial transverse bore or transverse slot.
Inventors
- 👤 Siegfried Leverberg
- 👤 Manfred Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14; F; F16; F16L; F16L29/00; F16L29/02; G01L; G01L19/00; G01L19/0007; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/613; Y10T137/6137
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
123 words
A measurement coupling for taking working pressures and temperatures of fluid media in fluid systems, comprising: a coupling bushing under duct pressure in the built-in state; a support ring and an O-ring arranged in a widened portion of an internal bore of a hollow guide insert arranged within a bore of said coupling bushing; a spring-loaded and mechanically actuatable check valve arranged within the bore of said coupling; said check valve including a valve body exhibiting a valve body cylindrical bore and a closed bottom face; said valve body having an end exhibiting said closed bottom face and which faces the fluid system and is prolonged beyond the coupling bushing; and a radial transverse bore located in a wall of the valve body.
Claim 2
Dependent Claim
123 words
A measurement coupling for taking working pressures and temperatures of fluid media in fluid systems, comprising: a coupling bushing under duct pressure in the built-in state; a support ring and an O-ring arranged in a widened portion of an internal bore of a hollow guide insert arranged within a bore of said coupling bushing; a spring-loaded and mechanically actuatable check valve arranged within the bore of said coupling; said check valve including a valve body exhibiting a valve body cylindrical bore and a closed bottom face; said valve body having an end exhibiting said closed bottom face and which faces the fluid system and is prolonged beyond the coupling bushing; and a radial transverse bore located in a wall of the valve body.
Claim 3
Dependent Claim
48 words
A measurement coupling according to claim 1, wherein the radial transverse bore is located in the wall of a guide part of the valve body and, wherein a flow slot channel is formed between the valve body and the coupling bushing as far as said radial transverse bore.
Claim 4
Dependent Claim
33 words
A measurement coupling according to claim 2, wherein a collar is formed about the valve body, said collar forming a sealing face and simultaneously acting as a stop for a cylindrical compression spring.
Claim 5
Dependent Claim
24 words
A measurement coupling according to claim 3, wherein an open upper end face of the valve body is constructed as a right planar face.
Claim 6
Dependent Claim
28 words
A measurement coupling according to claim 4, wherein said transverse bore is a transverse slot adjacent to and contiguous with an open upper face of said valve body.
Claim 7
Dependent Claim
23 words
A measurement coupling according to claim 3, wherein an open upper end face of the valve body is constructed as a conical mouth.
Claim 8
Dependent Claim
28 words
A measurement coupling according to claim 6, wherein said transverse bore is a transverse slot adjacent to and contiguous with an open upper face of said valve body.
Claim 9
Dependent Claim
29 words
A measurement coupling according to claim 3, wherein the valve body has a stop shoulder which strikes against a stop face arranged within the bore of said coupling bushing.
Claim 10
Dependent Claim
44 words
A measurement coupling according to claim 8, wherein a lower part of the bore of the coupling bushing has a greater diameter than a remaining portion of the bore, such that a cylindrical vortex chamber is formed within a tapered portion of the valve.
Claim 11
Dependent Claim
26 words
A measurement coupling according to claim 9, wherein the vortex chamber has a conical enlargement located in its lower part and which faces the fluid media.
Claim 12
Dependent Claim
28 words
A measurement coupling according to claim 8, wherein said transverse bore is a transverse slot adjacent to and contiguous with an open upper face of said valve body.
Claim 13
Dependent Claim
30 words
A measurement coupling according to claim 3, further including an electrical temperature sensor having a tapered sensor tip and a conical transition removably arranged within said valve body cylindrical bore.
Claim 14
Dependent Claim
31 words
A measurement coupling according to claim 3, wherein a torsional securement ring is arranged, under prestress, in a thread relief of the coupling bushing and a recess of a screwed cap.
Claim 15
Dependent Claim
41 words
A measurement coupling according to claim 13, wherein a guide aperture in combination with a plurality of notches located in the coupling bushing, gives a free through-flow cross-section corresponding to the nominal width of a pressure hose connected to said coupling.
Claim 16
Dependent Claim
17 words
A measurement coupling according to claim 14, wherein a coupling thread is developed as a buttress thread.
Claim 17
Dependent Claim
28 words
A measurement coupling according to claim 3, wherein said transverse bore is a transverse slot adjacent to and contiguous with an open upper face of said valve body.
Claim 18
Dependent Claim
28 words
A measurement coupling according to claim 2, wherein said transverse bore is a transverse slot adjacent to and contiguous with an open upper face of said valve body.
Claim 19
Dependent Claim
28 words
A measurement coupling according to claim 1 wherein said transverse bore is a transverse slot adjacent to and contiguous with an open upper face of said valve body.
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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) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |