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US4514604A
Expired / Lapsed
US
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Arrangement for converting the pressure of a medium into an electrical signal
Assignee: Kaltenbach and Voigt GmbH
•
Filing: 1984-07-17
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Granted: 1985-04-30
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Expires: 2004-07-17
Abstract
Abstract In an arrangement for converting the pressure of a pressure medium into an electrical signal, there is provided an electrical sensor 1, which is presently positionable into one of two fixed positions by a reciprocable adjusting element 3 through the alternating pressure of the pressure medium, under the concurrent electrical connection and disconnection of its contacts 4, 5. In order to maintain the constructional volume of the arrangement as well as the requirement of components as small as possible, the contacts 4, 5 of the sensor 1 are directly electrically connectible in one of the two fixed positions of the adjusting element 3.
Inventors
- 👤 Hermann Gmeinder
- 👤 Georg Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:16
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A unitary component for converting the pressure of a pressure medium into an electrical signal, said unitary component forming a flat membrane chamber (17) having a plate (12) of electrically non-conductive material with electrical contacts (4,5) arranged on one side of the plate in the chamber, and a pressure responsive membrane (14), reciprocated through the pressure of a pressure medium received from a pressure medium source (2), having an electrically conductive surface facing said electrical contacts for the electrical connection and disconnection of contacts (4,5), and an insulating plate (15) located intermediate said plate and said membrane (14), said insulating plate including a through aperture (16) to allow the membrane (14) to contact the contacts (4,5) of the sensor therethrough under the pressure of the pressure medium.
Claim 2
Dependent Claim
127 words
A unitary component for converting the pressure of a pressure medium into an electrical signal, said unitary component forming a flat membrane chamber (17) having a plate (12) of electrically non-conductive material with electrical contacts (4,5) arranged on one side of the plate in the chamber, and a pressure responsive membrane (14), reciprocated through the pressure of a pressure medium received from a pressure medium source (2), having an electrically conductive surface facing said electrical contacts for the electrical connection and disconnection of contacts (4,5), and an insulating plate (15) located intermediate said plate and said membrane (14), said insulating plate including a through aperture (16) to allow the membrane (14) to contact the contacts (4,5) of the sensor therethrough under the pressure of the pressure medium.
Claim 3
Dependent Claim
25 words
Arrangement as claimed in claim 1, characterized in that the contacts (4,5) are arranged as a printed circuit formed on the surface of said plate.
Claim 4
Dependent Claim
22 words
Arrangement as claimed in 2, characterized in that the contacts (4,5) are arranged as meandering patterns on the surface of said plate.
Claim 5
Dependent Claim
20 words
Arrangement as claimed in claim 1, characterized in that the membrane chamber (17) is sealed by a sealing ring (18).
Claim 6
Dependent Claim
18 words
Arrangement as claimed in claim 1, characterized in that said insulating plate is provided with plug contacts (24).
Claim 7
Dependent Claim
25 words
Arrangement as claimed in claim 5, characterized in that one or more unitary components (23) are arranged to be supported on a support plate (22).
Claim 8
Dependent Claim
26 words
Arrangement as claimed in claim 6, characterized in that socket elements (25) in said support plate engage the plug contacts (24) in the support plate (22).
Claim 9
Dependent Claim
20 words
Arrangement as claimed in claim 7, characterized in that said insulating plate is provided with an opening (27) extending therethrough.
Claim 10
Dependent Claim
48 words
Arrangement as claimed in claim 8, characterized in that said opening (27) is connected with a conduit seciton (6') having a pressure (P2) differing from a pressure (P1) of a pressure medium flowing in the membrane chamber (19) for the formation of a flow or differential pre-sure monitor.
Claim 11
Dependent Claim
45 words
Arrangement as claimed in claim 8, characterized in that an externally actuatable setting screw (28) is located in the membrane chamber (17), a pressure spring (29) is supported against said screw, and said spring supports a pressure member (30) in contact with the membrane (14).
Claim 12
Dependent Claim
32 words
Arrangement as claimed in claim 8, characterized in that an externally actuatable setting screw (31) is arranged in the membrane chamber (17) for the setting of a switch point and switching hysteresis.
Claim 13
Dependent Claim
42 words
Arrangement as claimed in claim 11, characterized in that the setting screw (31) includes a conically reduced end (32) extending into a conically reduced passageway (33) communicating with the membrane chamber (19), which includes a branch (34) connecting with the environmental pressure.
Claim 14
Dependent Claim
28 words
Arrangement as claimed in claim 1, characterized in that a pressure medium storage chamber (35) is provided in the membrane chamber (17) to form a threshold trigger switch.
Claim 15
Dependent Claim
39 words
Arrangement as claimed in claim 13, characterized in that the cross-section of an inlet opening (36) of the pressure medium storage chamber (35) is smaller than the cross-section of an outlet opening (37) connecting into the membrane chamber (19).
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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) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |