US4168631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier mounting construction for a pressure gauge
Assignee: Dresser Industries Inc
•
Filing: 1978-10-04
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Granted: 1979-09-25
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Expires: 1998-10-04
Abstract
Abstract The floating amplifier of a pressure gauge is mounted onto the free end of the Bourdon tube at various effective spacings therefrom correlated to offset any residual tip travel of the individual Bourdon tube.
Inventors
- 👤 Richard H. Wetterhorn
- 👤 Harold W. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:26
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/04; G01L7/048; G01L7/043
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
In a pressure gauge including a Bourdon tube operative to effect displacement in correlation to changes in pressure to which the Bourdon tube is exposed, and an amplifier secured to the displacement end of said Bourdon tube for floating conjoint movement therewith, said amplifier being secured to said Bourdon tube at varying effective spacings therebetween correlated to compensate against residual tip travel of the Bourdon tube deviated from a predetermined norm.
Claim 2
Dependent Claim
71 words
In a pressure gauge including a Bourdon tube operative to effect displacement in correlation to changes in pressure to which the Bourdon tube is exposed, and an amplifier secured to the displacement end of said Bourdon tube for floating conjoint movement therewith, said amplifier being secured to said Bourdon tube at varying effective spacings therebetween correlated to compensate against residual tip travel of the Bourdon tube deviated from a predetermined norm.
Claim 3
Dependent Claim
47 words
In a pressure gauge according to claim 1 in which said amplifier includes a U-shaped bracket and is secured to said Bourdon tube end at a location along a side face of said bracket which is functionally correlated to the extent of said deviate residual tip travel.
Claim 4
Dependent Claim
36 words
In a pressure gauge according to claims 1 or 2 in which said amplifier is positioned at a predetermined fixed distance relative to a stationary reference indicia in said gauge when secured to said Bourdon tube.
Claim 5
Dependent Claim
26 words
In a pressure gauge according to claim 3 in which said amplifier and said Bourdon tube are secured together by a weld between adjacent surfaces thereof.
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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |