Patent US4296635A successfully refreshed from Google Patents.
US4296635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer device for measuring the internal pressure in pipes
Assignee: Individual
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Filing: 1980-06-11
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Granted: 1981-10-27
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Expires: 2000-06-11
Abstract
Abstract A transducer device for measuring the internal pressure in pipes, comprises two housing parts which are articulately connected with one another by a connecting element and adapted to be fixedly mounted on the pipe by means of a clamping device. Each housing part contains at least one measuring element with a bipolar take-off of the test signals. At least one pole of each take-off is electrically conductingly connected with a part of the connecting element which is electrically insulated relative to the other pole and the connecting element comprises connection terminals for the further conduction or transmission of the test signals. The other pole is potentially in direct connection with the pipe. Thereby, a convenient and easy way is created for achieving electric compensation of the interfering signals within the transducer itself, thus replacing the separate, in each case bipolar conduction of the test signals out of the two housing parts with a combined, now altogether bipolar outgoing lead for the fully compensated test signals from the transducer.
Inventors
- 👤 Peter Claassen
- 👤 Helmut List
- 👤 Rudolf Zeiringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:10
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; F; F02; F02M; F02M65/00; F02M65/003; G01L23/00; G01L23/08; G01L23/10; Y; Y10; Y10S; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
121 words
A transducer device for measuring the internal pressure in pipes, comprising two housing parts and a connecting element, wherein said housing parts are articulately connected with one another by said connecting element and adapted to be fixedly mounted on the pipe by means of a clamping device, each of said housing parts contains at least one measuring element with a bipolar take-off of test signals, at least one pole of each take-off is electrically conductingly connected with a part of said connecting element which is electrically insulated relative to the other pole, and the connecting element comprises connection terminals for the further conduction or transmission of the test signals, the said other pole being potentially in direct connection with the pipe.
Claim 2
Dependent Claim
121 words
A transducer device for measuring the internal pressure in pipes, comprising two housing parts and a connecting element, wherein said housing parts are articulately connected with one another by said connecting element and adapted to be fixedly mounted on the pipe by means of a clamping device, each of said housing parts contains at least one measuring element with a bipolar take-off of test signals, at least one pole of each take-off is electrically conductingly connected with a part of said connecting element which is electrically insulated relative to the other pole, and the connecting element comprises connection terminals for the further conduction or transmission of the test signals, the said other pole being potentially in direct connection with the pipe.
Claim 3
Dependent Claim
28 words
A transducer device according to claim 1, wherein the electrically conducting connection between one pole of each take-off and said connecting element is made by contact bridge pieces.
Claim 4
Dependent Claim
19 words
A transducer device according to claim 1, wherein said two housing parts are made from an electrically insulating material.
Claim 5
Dependent Claim
23 words
A transducer device according to claim 3, wherein said two housing parts are made from a plastic material and produced as injection mouldings.
Claim 6
Dependent Claim
24 words
A transducer device according to claim 2 or 4, wherein said contact bridge pieces are integrated as integrally moulded parts in said housing parts.
Claim 7
Dependent Claim
37 words
A transducer device according to claim 1, wherein at least one of the parts of said connecting element which is connected with one of the poles of the take-off comprises a connector plug, e.g. a flat plug.
Claim 8
Dependent Claim
36 words
A transducer device according to claim 1, wherein the one part of said connecting element consists of an electrically conducting bolt supported in said both housing parts and providing the articulated connection of the housing parts.
Claim 9
Dependent Claim
35 words
A transducer device according to claim 6 or 7, wherein said connecting element comprises a connector part which is electrically connected with said other pole of each take-off and electrically insulated relative to said bolt.
Claim 10
Dependent Claim
28 words
A transducer device according to claim 8, wherein said other pole of each take-off is electrically connected with said connector part by means of movable scissor-type contact blades.
Claim 11
Dependent Claim
32 words
A transducer device according to claim 8, wherein said connector part is designed as the first contact and the end of said bolt as the second contact of a bipolar connector socket.
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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |