US3812877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator assembly
Assignee: Tescom Corp
•
Filing: 1972-08-28
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Granted: 1974-05-28
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Expires: 1992-08-28
Abstract
Abstract A pressure regulator assembly that includes a valve body, a bonnet mounted on the body and in combination with the body mounting a flexible diaphragm to separate the body control chamber and bonnet chamber, a nozzle and back cap mounted by the body to provide an inlet chamber, a valve stem assembly extended through the inlet chamber and nozzle and resiliently urged toward the bonnet to block fluid flow through the nozzle to the control chamber, a centering disc abutting against the diaphragm and the valve stem assembly to in cooperation with a spring coiled about a circular axis retain the valve stem assembly radially spaced from the nozzle bore and back cap bore, a filter screen in the inlet chamber, and spring mechanism in the bonnet resiliently urging the diaphragm toward the back cap. In one embodiment an eyelet secures the diaphragm support plate to the diaphragm, and in combination with an integral, raised, annular ring portion (boss) on the diaphragm side of the centering disc and abutting against the diaphragm in surrounding relationship to the eyelet provides for a self-relieving feature, while in the second embodiment the diaphragm support plate is not secured to the diaphragm and no raised ring portion is provided on the diaphragm side of the centering disc. In the second embodiment an adjustment knob is threaded to the bonnet and has part of the adjusting spring extended a substantial distance into the knob bore for the purpose of providing more space for the adjusting spring without increasing the size of the bonnet.
Inventors
- 👤 J Fleischhacker
- 👤 T Hruby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:05
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2607; Y10T137/261; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/7822; Y10T137/7823; Y10T137/7826
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
393 words
A pressure regulator assembly comprising a valve body having a control chamber, and oulet and inlet passageways opening to the control chamber in spaced relationship to one another, a bonnet mounted on the valve body and having a bonnet chamber opening toward the control chamber, a diaphragm mounted by the bonnet and valve body and extending across the control chamber for separating the control chamber from the bonnet chamber, first means mounted by the bonnet and extending within the bonnet chamber for resiliently urging the diaphragm toward the control chamber, a nozzle mounted by the body, extending within the inlet passageway and having a bore extending therethrough to permit passage of fluid through the inlet passageway to the control chamber, a plug mounted by the body, extending into the inlet passageway remote from the nozzle and having a valve stem assembly bore, a valve stem assembly extending within the inlet passageway and through the nozzle bore, said valve stem assembly having a first elongated portion extended through the nozzle bore and into the control chamber; and a second elongated end portion extending into the plug bore, said first and second end portions being of cross sectional areas to provide annular clearance spaces with the nozzle and plug bores respectively, said valve stem assembly being mounted for reciprocal movement between a first position permitting fluid flow to and through the nozzle bore to the control chamber and a second position blocking fluid flow to and through the nozzle bore to the control chamber, second means within the inlet passageway for resiliently urging the valve stem assembly to its second position, and third and fourth means abutting against the first and second end portions respectively for centerIng the valve stem assembly relative the plug and nozzle bores while permitting reciprocal movement of the valve stem assembly, said third means being in abutting relationship with the diaphragm, said third means including a resilient centering disc having a peripheral edge portion mounted between the diaphragm and valve body to be held in a seated position abutting against the valve body and extending across the control chamber, and a central portion having a wall defining a recess that forms a close fit over the adjacent part of the first portion for centering the first portion relative the nozzle bore, said first portion extending into the centering disc recess.
Claim 2
Dependent Claim
393 words
A pressure regulator assembly comprising a valve body having a control chamber, and oulet and inlet passageways opening to the control chamber in spaced relationship to one another, a bonnet mounted on the valve body and having a bonnet chamber opening toward the control chamber, a diaphragm mounted by the bonnet and valve body and extending across the control chamber for separating the control chamber from the bonnet chamber, first means mounted by the bonnet and extending within the bonnet chamber for resiliently urging the diaphragm toward the control chamber, a nozzle mounted by the body, extending within the inlet passageway and having a bore extending therethrough to permit passage of fluid through the inlet passageway to the control chamber, a plug mounted by the body, extending into the inlet passageway remote from the nozzle and having a valve stem assembly bore, a valve stem assembly extending within the inlet passageway and through the nozzle bore, said valve stem assembly having a first elongated portion extended through the nozzle bore and into the control chamber; and a second elongated end portion extending into the plug bore, said first and second end portions being of cross sectional areas to provide annular clearance spaces with the nozzle and plug bores respectively, said valve stem assembly being mounted for reciprocal movement between a first position permitting fluid flow to and through the nozzle bore to the control chamber and a second position blocking fluid flow to and through the nozzle bore to the control chamber, second means within the inlet passageway for resiliently urging the valve stem assembly to its second position, and third and fourth means abutting against the first and second end portions respectively for centerIng the valve stem assembly relative the plug and nozzle bores while permitting reciprocal movement of the valve stem assembly, said third means being in abutting relationship with the diaphragm, said third means including a resilient centering disc having a peripheral edge portion mounted between the diaphragm and valve body to be held in a seated position abutting against the valve body and extending across the control chamber, and a central portion having a wall defining a recess that forms a close fit over the adjacent part of the first portion for centering the first portion relative the nozzle bore, said first portion extending into the centering disc recess.
Claim 3
Dependent Claim
178 words
The apparatus of claim 1 further characterized in that the plug bore has a wall defining first and second diametric portions forming a shoulder facing the nozzle with the second diametric portion being of a larger diameter and more closely adjacent the nozzle than the first diametric portion and that the fourth means includes a first spring coiled about a circular axis and having the valve stem assembly second portion extended therethrough, said first spring having diametrically opposed portions abutting against the valve stem second portion and said second diametric portion respectively for holding the second end portion out of abutting contact with said wall, said first spring having portions abutting against said shoulder, and that there is provided an annular member movably mounted in the plug bore in abutting relationship with the first spring diametrically opposite said shoulder, and that the second means includes a second spring that has one end abutting against the annular member opposite the first spring and an opposite end abutting against the nozzle for resiliently urging the annular member toward said shoulder.
Claim 4
Dependent Claim
94 words
The apparatus of claim 1 further characterized in that the plug bore has an annular recessed portion opening toward the valve stem assembly second end portion and that the fourth means includes a spring coiled about a circular axis that abuts against the valve stem assembly second portion for holding the second end portion out of contact with a wall defining said plug bore as the valve stem assembly moves from its first position to its second position, said spring abutting against a wall portion of said wall that defines said annular recessed portion.
Claim 5
Dependent Claim
87 words
The apparatus of claim 1 further characterized in that the body has a bore forming part of the inlet passageway, said plug and nozzle being mounted in the body bore in spaced relationship to one another to provide an inlet chamber forming part of the inlet passageway, said inlet passageway including an inlet bore opening to the inlet chamber and that there is provided a filter screen in the inlet chamber through which fluid has to flow in passing from the inlet bore to the nozzle bore.
Claim 6
Dependent Claim
71 words
The apparatus of claim 1 further characterized in that the first means includes a backup member mounted for limited movement in the bonnet chamber in abutting relationship to the diaphragm on the opposite side of the diaphragm from the centering disc and spring means mounted in the bonnet chamber to resiliently urge the backup member toward the control chamber, said spring means having one end portion abutting against the backup member.
Claim 7
Dependent Claim
344 words
A regulator assembly comprising a valve body having a control chamber and inlet and outlet passageways opening to said control chamber in spaced relationship to one another, a bonnet having a bonnet chamber, a diaphragm, a plastic resilient centering disc, said diaphragm and disc having outer peripheral edge portions and central portions, said bonnet being secured to the valve body for mounting the peripheral edge portions in fixed relationship to the valve body with the diaphragm separating the bonnet chamber from the control chamber and the centering disc abutting against the diaphragm with the diaphragm on the opposite side of the centering disc from the control chamber, operable valve means in The inlet passageway operable between a first position permitting fluid under pressure flowing into the control chamber and a second position blocking fluid under pressure flowing into the control chamber, means for resiliently urging the valve means to the second position, and selectively adjustable means extending in the bonnet chamber for resiliently urging the diaphragm toward the valve means, said resilient urging means including a backup member abutting against the diaphragm, said valve means abutting against the centering disc and being operable thereby from the second position to its first position, said valve means including a plunger, a plunger bore having the plunger slidably extended into the plunger bore, said plunger having a portion of a substantially smaller cross sectional area than the plunger bore and extending thereinto, a spring coiled about a circle axis extending around said plunger portion for positioning the plunger in a centered position relative the plunger bore, a nozzle having a nozzle bore extending therethrough and opening to the control chamber, and a control rod extending through the nozzle bore and being of a substantially smaller cross sectional area than the nozzle bore, said centering disc having a central recess opening toward the nozzle, having the control rod extended thereinto, and forming a close fit with the adjacent part of the control rod to aid in retaining the control rod in a centered position relative the nozzle bore.
Claim 8
Dependent Claim
344 words
A regulator assembly comprising a valve body having a control chamber and inlet and outlet passageways opening to said control chamber in spaced relationship to one another, a bonnet having a bonnet chamber, a diaphragm, a plastic resilient centering disc, said diaphragm and disc having outer peripheral edge portions and central portions, said bonnet being secured to the valve body for mounting the peripheral edge portions in fixed relationship to the valve body with the diaphragm separating the bonnet chamber from the control chamber and the centering disc abutting against the diaphragm with the diaphragm on the opposite side of the centering disc from the control chamber, operable valve means in The inlet passageway operable between a first position permitting fluid under pressure flowing into the control chamber and a second position blocking fluid under pressure flowing into the control chamber, means for resiliently urging the valve means to the second position, and selectively adjustable means extending in the bonnet chamber for resiliently urging the diaphragm toward the valve means, said resilient urging means including a backup member abutting against the diaphragm, said valve means abutting against the centering disc and being operable thereby from the second position to its first position, said valve means including a plunger, a plunger bore having the plunger slidably extended into the plunger bore, said plunger having a portion of a substantially smaller cross sectional area than the plunger bore and extending thereinto, a spring coiled about a circle axis extending around said plunger portion for positioning the plunger in a centered position relative the plunger bore, a nozzle having a nozzle bore extending therethrough and opening to the control chamber, and a control rod extending through the nozzle bore and being of a substantially smaller cross sectional area than the nozzle bore, said centering disc having a central recess opening toward the nozzle, having the control rod extended thereinto, and forming a close fit with the adjacent part of the control rod to aid in retaining the control rod in a centered position relative the nozzle bore.
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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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |