US4361046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calibration adjustment for gauge instruments
Assignee: Dresser Industries Inc
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Filing: 1981-03-03
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Granted: 1982-11-30
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Expires: 2001-03-03
Abstract
Abstract An elongated actuator pin in a pressure gauge extends from a fixed end to a free end to interact with the amplifier for enabling pivotal motion thereof to translate Bourdon displacement to an output pointer. A clamp slideably mounted on the actuator pin is operatively effective when set at a selected location along the pin length to variably offset the free end of the pin from its longitudinal axis for obtaining correct calibration adjustment of the gauge.
Inventors
- 👤 Richard H. Wetterhorn
- 👤 William S. Kosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:04
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/04; G01L7/048
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
99 words
In a gauge instrument including a Bourdon tube, an amplifier adapted to transmit displacement motion of the Bourdon tube to an output drive and an elongated actuator pin extending from between a first end secured to a support and a second end interacting with the amplifier for enabling operational motion of the amplifier in response to displacement changes incurred by the Bourdon tube, calibration apparatus comprising clamp means mounted on said actuator pin intermediate its ends and settable for imposing a controlled bend in said pin offsetting the second end thereof from a plane of the unbent pin thereat.
Claim 2
Dependent Claim
99 words
In a gauge instrument including a Bourdon tube, an amplifier adapted to transmit displacement motion of the Bourdon tube to an output drive and an elongated actuator pin extending from between a first end secured to a support and a second end interacting with the amplifier for enabling operational motion of the amplifier in response to displacement changes incurred by the Bourdon tube, calibration apparatus comprising clamp means mounted on said actuator pin intermediate its ends and settable for imposing a controlled bend in said pin offsetting the second end thereof from a plane of the unbent pin thereat.
Claim 3
Dependent Claim
45 words
In a gauge instrument according to claim 1 in which said clamp means includes positioning means operative to enable positioning said clamp means at a selected longitudinal location on said pin for controllably setting the extent of offset bend incurred by said second pin end.
Claim 4
Dependent Claim
38 words
In a gauge instrument according to claim 2 in which said amplifier is mounted on said Bourdon tube for displacement conjointly therewith and said second end of said actuator pin defines an operative pivotal axis for said amplifier.
Claim 5
Dependent Claim
32 words
In a gauge instrument according to claim 2 in which the first end of said actuator pin is secured on the displacement end of said Bourdon tube for incurring displacement motion therewith.
Claim 6
Dependent Claim
39 words
In a gauge instrument according to claims 2, 3 or 4 in which said positioning means also enables said clamp means to be arcuately displaceable about said selected longitudinal location for gradually varying the extent of said offset bend.
Claim 7
Dependent Claim
26 words
In a gauge instrument according to claims 2, 3 or 4 in which said clamp means comprises a spring metal releasably secured on said actuator pin.
Claim 8
Dependent Claim
36 words
In a gauge instrument according to claims 1, 2, 3 or 4 in which said clamp means comprises a substantially springless composition capable of being shaped in place on said actuator pin for imposing said bend.
Claim 9
Dependent Claim
23 words
In a gauge instrument according to claim 7 in which said clamp means is operative to calibrate the span setting of the instrument.
Claim 10
Dependent Claim
23 words
In a gauge instrument according to claim 7 in which said clamp means is operative to calibrate the linearity setting of the instrument.
Claim 11
Dependent Claim
26 words
In a gauge instrument according to claim 7 in which said clamp means is operative to calibrate both the span and linearity settings of the instrument.
Claim 12
Dependent Claim
27 words
In a gauge instrument according to claim 7 in which said clamp means comprises a W-shaped clamp imposing a three point bending force against said actuator pin.
References Cited (Backward Citations)
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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) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |