US3577112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for high pressure measurement
Assignee: Flowserve Corp
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Filing: 1969-05-22
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Granted: 1971-05-04
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Expires: 1989-05-22
Abstract
Abstract Apparatus for high pressure measurement utilizing strain gages removably mounted in an opening in an object to which a force, such as fluid pressure, is applied. The mounting is separated from the location of application of the high pressure. The strain gages are carried on plates or the like or may comprise plates, for ready insertion and removal.
Inventors
- 👤 John C Bowen
- 👤 Howard G Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:07
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/0004; G01L9/00; G01L9/0001; G01L9/0002
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
65 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having the central portion thereof offset with respect to said portions in engagement in said opening.
Claim 2
Dependent Claim
65 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having the central portion thereof offset with respect to said portions in engagement in said opening.
Claim 3
Dependent Claim
54 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said interior opening being tapered For retention of said means therein.
Claim 4
Dependent Claim
54 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said interior opening being tapered For retention of said means therein.
Claim 5
Dependent Claim
100 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and with the central portion of said wall portion offset with respect to said margins and being subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby.
Claim 6
Dependent Claim
100 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and with the central portion of said wall portion offset with respect to said margins and being subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby.
Claim 7
Dependent Claim
31 words
Apparatus for force measurement as defined in claim 3 in which said mounting member includes a tubular portion with a curved wall in spaced relation intermediate its margins to said opening.
Claim 8
Dependent Claim
29 words
Apparatus for force measurement as defined in claim 3 in which said mounting member has a plurality of curved wall portions with their meeting portions engaged in said opening.
Claim 9
Dependent Claim
23 words
Apparatus for force measurement as defined in claim 3 in which said mounting member has marginal portions in point contact in said opening.
Claim 10
Dependent Claim
23 words
Apparatus for force measurement as defined in claim 1 in which said mounting member has marginal portions in line contact in said opening
Claim 11
Dependent Claim
21 words
Apparatus for force measurement as defined in claim 3 in which said mounting member is longitudinally disposed in said interior opening.
Claim 12
Dependent Claim
26 words
Apparatus for force measurement as defined in claim 8 in which a plug member is provided in said opening in retaining engagement with said mounting member.
Claim 13
Dependent Claim
20 words
Apparatus for force measurement as defined in claim 3 in which said mounting member is transversely disposed in said opening.
Claim 14
Dependent Claim
90 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and subject to change in shape upon force application on said first member, said mounting member being a strip, and a strain gauge secured to said mounting member and controlled thereby.
Claim 15
Dependent Claim
90 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and subject to change in shape upon force application on said first member, said mounting member being a strip, and a strain gauge secured to said mounting member and controlled thereby.
Claim 16
Dependent Claim
25 words
Apparatus for force measurement as defined in claim 11 in which said mounting member is elongated and said wall portion is curved between said margins.
Claim 17
Dependent Claim
24 words
Apparatus for force measurement as defined in claim 12 in which said mounting member has said strain gauge mounted on a concave face thereof.
Claim 18
Dependent Claim
25 words
Apparatus for force measurement as defined in claim 13 in which said mounting member has an additional strain gauge mounted on a convex face thereof.
Claim 19
Dependent Claim
23 words
Apparatus for force measurement as defined in claim 12 in which said mounting member has said strain gauge on a convex face thereof.
Claim 20
Dependent Claim
111 words
Apparatus for force measurement comprising a member having an interior fluid space on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby, said first member being tubular with an interior fluid space, and said opening being in spaced relation to said interior fluid space.
Claim 21
Dependent Claim
111 words
Apparatus for force measurement comprising a member having an interior fluid space on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby, said first member being tubular with an interior fluid space, and said opening being in spaced relation to said interior fluid space.
Claim 22
Dependent Claim
86 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providiNg means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins in edge contact in said opening and subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby.
Claim 23
Dependent Claim
86 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providiNg means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins in edge contact in said opening and subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby.
Claim 24
Dependent Claim
102 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby, said mounting member having a uniform beam portion at the location at which said strain gauge is mounted.
Claim 25
Dependent Claim
102 words
Apparatus for force measurement comprising a member on which a force is applied, said member having an interior opening subject to change in shape upon force application on said member, and strain responsive signal providing means having portions in engagement in said opening, said means including a mounting member having a wall portion with margins engaged in said opening and subject to change in shape upon force application on said first member, and a strain gauge secured to said mounting member and controlled thereby, said mounting member having a uniform beam portion at the location at which said strain gauge is mounted.
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |