US3938542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural range pressure regulator construction and cap assembly therefor
Assignee: Robertshaw Controls Co
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Filing: 1974-11-08
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Granted: 1976-02-17
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Expires: 1994-11-08
Abstract
Abstract In a plural range pressure regulator construction having a spring for acting on a flexible wall of the construction to provide one pressure range for the regulator construction when the spring is in a certain position thereof and for being stored in a removable cap of the construction so that the spring will be in another position thereof and will not act on the wall so as to permit the regulator construction to provide another range thereof, the improvement wherein the spring has a spring retainer secured to one end thereof with the spring retainer being adapted to be snap-fitted onto a projection of the cap whereby the cap and spring are removed in unison from the housing when it is desired to change the operating position of the spring.
Inventors
- 👤 John J. Bolha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:03
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; G05D16/0661; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7825
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
142 words
In a plural range pressure regulator construction having a spring means for acting on a flexible wall of said construction to provide one pressure range for said regulator construction when said spring means is in a certain position whereof and for being stored in a removable cap of said construction so that said spring means will be in another position thereof and will not act on said wall so as to permit said regulator construction to provide another pressure range thereof, the improvement comprising securing means for securing said spring means to said cap when said spring means is in either of said positions thereof whereby said spring means is adapted to be removed from the housing of said construction in unison with said cap when said cap is removed therefrom and said spring means is in either of said positions thereof.
Claim 2
Dependent Claim
142 words
In a plural range pressure regulator construction having a spring means for acting on a flexible wall of said construction to provide one pressure range for said regulator construction when said spring means is in a certain position whereof and for being stored in a removable cap of said construction so that said spring means will be in another position thereof and will not act on said wall so as to permit said regulator construction to provide another pressure range thereof, the improvement comprising securing means for securing said spring means to said cap when said spring means is in either of said positions thereof whereby said spring means is adapted to be removed from the housing of said construction in unison with said cap when said cap is removed therefrom and said spring means is in either of said positions thereof.
Claim 3
Dependent Claim
51 words
In a plural range pressure regulator construction as set forth in claim 1, the further improvement wherein said spring means is detachably secured to said cap by said securing means when said spring means is in either of said positions thereof whereby said spring means can be removed from said cap.
Claim 4
Dependent Claim
36 words
In a plural range pressure regulator construction as set forth in claim 2, the further improvement wherein said securing means comprises a spring retainer against which one end of said spring means is adapted to bear.
Claim 5
Dependent Claim
37 words
In a plural range pressure regulator construction as set forth in claim 3, the further improvement wherein said spring retainer has snap-fit means for snap-fitting to said cap to detachably secure said spring retainer to said cap.
Claim 6
Dependent Claim
40 words
In a plural range pressure regulator construction as set forth in claim 4, the further improvement wherein said snap-fit means of said spring retainer comprises a plurality of tongues of said spring retainer that are disposed in a circular array.
Claim 7
Dependent Claim
35 words
In a plural range pressure regulator construction as set forth in claim 5, the further improvement wherein said cap has a central projection against which said tongues of said spring retainer are adapted to snap-fit.
Claim 8
Dependent Claim
36 words
In a plural range pressure regulator construction as set forth in claim 3, the further improvement wherein said one end of said spring means is secured to said spring retainer so as to be carried thereby.
Claim 9
Dependent Claim
34 words
In a plural range pressure regulator construction as set forth in claim 7, the further improvement wherein said spring means is substantially conical in configuration with said one end being the smaller end thereof.
Claim 10
Dependent Claim
152 words
A removable cap assembly for a plural range pressure regulator construction having a spring means for acting on a flexible wall of said construction to provide one pressure range for said regulator construction when said spring means is in a certain position thereof and for being stored in a removable cap of said construction so that said spring means will be in another position thereof and will not act on said wall so as to permit said regulator construction to provide another pressure range thereof, said assembly comprising said cap, said spring means, and securing means for securing said spring means to said cap when said spring means is in either of said positions thereof whereby said spring means is adapted to be removed from the housing of said construction in unison with said cap when said cap is removed therefrom and said spring means is in either of said positions thereof.
Claim 11
Dependent Claim
152 words
A removable cap assembly for a plural range pressure regulator construction having a spring means for acting on a flexible wall of said construction to provide one pressure range for said regulator construction when said spring means is in a certain position thereof and for being stored in a removable cap of said construction so that said spring means will be in another position thereof and will not act on said wall so as to permit said regulator construction to provide another pressure range thereof, said assembly comprising said cap, said spring means, and securing means for securing said spring means to said cap when said spring means is in either of said positions thereof whereby said spring means is adapted to be removed from the housing of said construction in unison with said cap when said cap is removed therefrom and said spring means is in either of said positions thereof.
Claim 12
Dependent Claim
43 words
An assembly as set forth in claim 9 wherein said spring means is detachably secured to said cap by said securing means when said spring means is in either of said positions thereof whereby said spring means can be removed from said cap.
Claim 13
Dependent Claim
28 words
An assembly as set forth in claim 10 wherein said securing means comprises a spring retainer against which one end of said spring means is adapted to bear.
Claim 14
Dependent Claim
29 words
An assembly as set forth in claim 10 wherein said spring retainer has snap-fit means for snap-fitting to said cap to detachable secure said spring retainer to said cap.
Claim 15
Dependent Claim
32 words
An assembly as set forth in claim 12 wherein said snap-fit means of said spring retainer comprises a plurality of tongues of said spring retainer that are disposed in a circular array.
Claim 16
Dependent Claim
27 words
An assembly as set forth in claim 13 wherein said cap has a central projection against which said tongues of said spring retainer are adapted to snap-fit.
Claim 17
Dependent Claim
28 words
An assembly as set forth in claim 11 wherein said one end of said spring means is secured to said spring retainer so as to be carried thereby.
Claim 18
Dependent Claim
26 words
An assembly as set forth in claim 15 wherein said spring means is substantially conical in configuration with said one end being the smaller end thereof.
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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) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |