Patent US5970796A successfully refreshed from Google Patents.
US5970796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure gauge having a diaphragm secured staked within the enclosure
Assignee: Dresser LLC
•
Filing: 1998-03-31
•
Granted: 1999-10-26
•
Expires: 2018-03-31
Abstract
Abstract There is disclosed a pressure gauge construction in which a diaphragm assembly responsive to changing values of fluid pressure being supplied to the gauge is secured against an internal support surface of the casing by a combination of sealant and thermal staking.
Inventors
- 👤 Jeffrey T. Blake
- 👤 Talivaldis I. Maidelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:52
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/08; G01L7/082; G01L7/084; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
122 words
In a pressure gauge for monitoring values of fluid pressure comprising: a) a casing having an internal cavity for enclosing the operating components of the gauge and defining an exterior inlet at which fluid pressure to be monitored can be communicated through an internal outlet to said cavity; b) a displaceable pointer operable for indicating values of pressure of fluid being received; and c) a diaphragm assembly secured within the cavity of said casing to receive fluid pressure communicated to the internal outlet of said casing for effecting operative pointer displacement in response to changes in pressure of fluid being received; d) said diaphragm assembly being secured to said casing within the casing cavity in a staked relation to a support thereat.
Claim 2
Dependent Claim
122 words
In a pressure gauge for monitoring values of fluid pressure comprising: a) a casing having an internal cavity for enclosing the operating components of the gauge and defining an exterior inlet at which fluid pressure to be monitored can be communicated through an internal outlet to said cavity; b) a displaceable pointer operable for indicating values of pressure of fluid being received; and c) a diaphragm assembly secured within the cavity of said casing to receive fluid pressure communicated to the internal outlet of said casing for effecting operative pointer displacement in response to changes in pressure of fluid being received; d) said diaphragm assembly being secured to said casing within the casing cavity in a staked relation to a support thereat.
Claim 3
Dependent Claim
69 words
In a pressure gauge in accordance with claim 1 in which said casing includes a support surface surrounding said internal outlet, said diaphragm assembly has a rear surface defining an aperture into which fluid pressure can be received from said internal outlet and said diaphragm assembly is sealed onto said support surface in a sealed relation about said aperture with said aperture being in communication with said internal outlet.
Claim 4
Dependent Claim
52 words
A pressure gauge in accordance with claim 2 in which said diaphragm assembly includes a peripheral flange having a plurality of angularly spaced apertures and said casing includes integral posts laterally extending from about said support surface to receive and support the diaphragm assembly by extending through the apertures of said flange.
Claim 5
Dependent Claim
42 words
In a pressure gauge in accordance with claim 3 in which nearby posts have a predetermined angularly spacing therebetween and the angular spacing of the apertures on the flange of said diaphragm assembly are correlated to the angular spacings of said posts.
Claim 6
Dependent Claim
47 words
In a pressure gauge in accordance with claim 4 in which the angular spacing of said posts and said apertures permit setting said diaphragm assembly unto the support surface of said casing in a plurality of selectively different orientations about the support surface of the casing thereat.
Claim 7
Dependent Claim
22 words
In a pressure gauge in accordance with claim 3 in which said posts are staked against the flange of said diaphragm assembly.
Claim 8
Dependent Claim
45 words
In a pressure gauge in accordance with claim 6 in which said support surface includes a recessed track surrounding said internal outlet, and said track contains a controlled quantity of sealant for effecting a said sealed relation between said support surface and said diaphragm assembly.
Claim 9
Dependent Claim
19 words
In a pressure gauge in accordance with claim 1 in which said casing is comprised of a thermoplastic composition.
Claim 10
Dependent Claim
18 words
In a pressure gauge in accordance with claim 8 in which said composition comprises glass filled polysulfone (PSU).
Claim 11
Independent Claim
117 words
The method of mounting a diaphragm assembly to the casing of a pressure gauge for monitoring pressure values of fluid supplied to the gauge and comprising the steps of: a) providing a casing having an internal cavity for enclosing the operating components of the gauge and defining an exterior inlet at which fluid pressure to be monitored can be communicated through an internal outlet to said cavity and including a support surface surrounding said internal outlet on which to support the diaphragm assembly, b) providing a diaphragm assembly adapted for position placement against the support surface of said casing, and c) securing the diaphragm assembly to said casing by thermally staking said diaphragm assembly to said casing.
Claim 12
Independent Claim
117 words
The method of mounting a diaphragm assembly to the casing of a pressure gauge for monitoring pressure values of fluid supplied to the gauge and comprising the steps of: a) providing a casing having an internal cavity for enclosing the operating components of the gauge and defining an exterior inlet at which fluid pressure to be monitored can be communicated through an internal outlet to said cavity and including a support surface surrounding said internal outlet on which to support the diaphragm assembly, b) providing a diaphragm assembly adapted for position placement against the support surface of said casing, and c) securing the diaphragm assembly to said casing by thermally staking said diaphragm assembly to said casing.
Claim 13
Dependent Claim
71 words
The method in accordance with claim 10 in which the provided casing includes a plurality of angularly spaced posts integrally extending laterally from about said support surface, and said provided diaphragm assembly includes a peripheral flange containing a plurality of apertures adapted to be received onto said posts and said securing step includes thermally staking said posts against the received peripheral flange for securing said diaphragm assembly against said support surface.
Claim 14
Dependent Claim
67 words
The method in accordance with claim 11 in which said staking step is sequentially preceded by a step of applying a predetermined quantity of a sealant to one of the opposing surfaces of said diaphragm assembly or said support surface for said applied sealant to lie in an encircling relation about said internal outlet and said securing step compresses said sealant for effecting a sealed relation thereabout.
Claim 15
Dependent Claim
18 words
The method in accordance with claim 10 in which the provided casing is comprised of a thermoplastic composition.
References Cited (Backward Citations)
US1572970A
Cited
US3844025A
Cited
US4488341A
Cited
US5181422A
Cited
US5297428A
Cited
US5741975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |