US3838379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure transducer for liquids or gases
Assignee: US Philips Corp
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Filing: 1973-01-08
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Granted: 1974-09-24
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Expires: 1993-01-08
Abstract
Abstract A pressure transducer comprising a tubular support which is closed on one end by a semiconductor device for converting mechanical stresses into electrical signals. Current supply conductors for the semiconductor device extend through ducts in the tube wall. These current supply conductors preferably consist of cemented metal wires.
Inventors
- 👤 A Gieles
- 👤 P Haans
- 👤 Esdonk J Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:37
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/0061; G01L19/0084; A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/0215; G01L19/14; G01L19/142; G01L19/143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
A pressure transducer for measuring fluid pressure, comprising: a. a tubular support element having open ends and comprising channels extending longitudinally through the wall of said support element, each one of said channels being completely closed at the sides thereof by said support element wall and having open ends; b. current supply conductors extending through respective ones of said channels and comprising respective end portions fixedly located at a first one of said support element ends; c. device means for converting mechanical stresses into electrical signals, said device means being disposed at and closing said support element first end and comprising a semiconductor diameter having a relatively thick supporting rim and a relatively thin interior part; and d. connection terminals disposed at a face of said supporting rim and connected to said end portions of said current supply conductors.
Claim 2
Dependent Claim
139 words
A pressure transducer for measuring fluid pressure, comprising: a. a tubular support element having open ends and comprising channels extending longitudinally through the wall of said support element, each one of said channels being completely closed at the sides thereof by said support element wall and having open ends; b. current supply conductors extending through respective ones of said channels and comprising respective end portions fixedly located at a first one of said support element ends; c. device means for converting mechanical stresses into electrical signals, said device means being disposed at and closing said support element first end and comprising a semiconductor diameter having a relatively thick supporting rim and a relatively thin interior part; and d. connection terminals disposed at a face of said supporting rim and connected to said end portions of said current supply conductors.
Claim 3
Dependent Claim
16 words
A pressure transducer as recited in claim 1, wherein said tube wall is of insulating material.
Claim 4
Dependent Claim
18 words
A pressure transducer as recited in claim 1, wherein said end portions comprise respective flat ground end faces.
Claim 5
Dependent Claim
46 words
A pressure transducer as recited in claim 1, wherein said supporting rim comprises an annular metallized region enveloping said connection terminals, said annular region being soldered to said end face of said support element, and said current supply conductors and said connection terminals being soldered together.
Claim 6
Dependent Claim
23 words
A pressure transducer as recited in claim 1, wherein said current supply conductorS are metal wires, said wires being cemented in said channels.
References Cited (Backward Citations)
US3513430A
Cited
US3654579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |