Patent US3884268A successfully refreshed from Google Patents.
US3884268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve construction and method of making the same
Assignee: Robertshaw Controls Co
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Filing: 1974-01-25
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Granted: 1975-05-20
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Expires: 1994-01-25
Abstract
Abstract A valve construction having a valve body provided with an inlet and an outlet interconnected together by a chamber in the valve body. A one-piece valve seat cage is disposed in the chamber and has a pair of spaced aligned valve seats disposed between the inlet and the outlet. The cage has integral guides disposed on opposite sides of the valve seats to movably guide a valve stem passing through the valve cage and having a pair of valve members respectively cooperating with the valve seats to open and close the same.
Inventors
- 👤 Joseph P Wagner
- 👤 Ronnie C Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:17
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; F16K27/00; F16K27/04; F16K3/00; F16K3/22; F16K3/24; F16K3/26; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767; Y10T137/86783; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
161 words
A valve construction comprising a valve body having an inlet and an outlet interconnected together by a chamber of said valve body, a one-piece valve seat cage disposed in said chamber and having valve seat means disposed between said inlet and said outlet, said cage having integral guides disposed on opposite sides of said valve seat means, a valve stem means movably guided by said guides and having valve member means for cooperating with said valve seat means to open and close the same, said valve body having an opening therein leading to said chamber, said valve seat cage being insertable through said opening into said chamber and being removable from said chamber out through said opening, and a cover member detachably secured to said valve body to close said opening, said valve body being one-piece and having a bonnet formed integrally therewith in aligned relation to said opening and on the opposed side of said valve body from said opening.
Claim 2
Dependent Claim
161 words
A valve construction comprising a valve body having an inlet and an outlet interconnected together by a chamber of said valve body, a one-piece valve seat cage disposed in said chamber and having valve seat means disposed between said inlet and said outlet, said cage having integral guides disposed on opposite sides of said valve seat means, a valve stem means movably guided by said guides and having valve member means for cooperating with said valve seat means to open and close the same, said valve body having an opening therein leading to said chamber, said valve seat cage being insertable through said opening into said chamber and being removable from said chamber out through said opening, and a cover member detachably secured to said valve body to close said opening, said valve body being one-piece and having a bonnet formed integrally therewith in aligned relation to said opening and on the opposed side of said valve body from said opening.
Claim 3
Dependent Claim
26 words
A valve construction as set forth in claim 1 wherein said bonnet has an opening passing therethrough and receiving part of said valve stem means therethrough.
Claim 4
Dependent Claim
37 words
A valve construction as set forth in claim 2 wherein said bonnet has a packing cavity formed in said opening thereof, and packing means disposed in said cavity and surrounding said part of said valve stem means.
Claim 5
Dependent Claim
48 words
A valve construction as set forth in claim 1 wherein said valve body has shoulder means and said cage has shoulder means adjacent said valve seat means and cooperating with said shoulder means of said valve body to seal said cage in said chamber of said valve body.
Claim 6
Dependent Claim
29 words
A valve construction as set forth in claim 4 aNd including gasket means disposed between said shoulder means of said valve body and said shoulder means of said cage.
Claim 7
Dependent Claim
211 words
A valve construction comprising a valve body having an inlet and an outlet interconnected together by a chamber of said valve body, a one-piece valve seat cage disposed in said chamber and having valve seat means disposed between said inlet and said outlet, said cage having integral guides disposed on opposite sides of said valve seat means, and a valve stem means movably guided by said guides and having valve member means for cooperating with said valve seat means to open and close the same, said valve seat means comprising two spaced apart and aligned valve seats, said valve member means of said valve stem means comprising two spaced apart valve members on said valve stem means for respectively cooperating with said valve seats to substantially simultaneously open and close the same, said valve seats respectively having openings passing therethrough, said guides of said cage comprising a pair of openings passing through opposed ends of said cage and being disposed in alignment with openings of said valve seats, said cage having a pair of transverse openings formed therein respectively leading from one of said inlet and said outlet of said valve body to said guide openings thereof whereby said guide openings respectively interconnect said transverse openings to said valve seat openings.
Claim 8
Dependent Claim
211 words
A valve construction comprising a valve body having an inlet and an outlet interconnected together by a chamber of said valve body, a one-piece valve seat cage disposed in said chamber and having valve seat means disposed between said inlet and said outlet, said cage having integral guides disposed on opposite sides of said valve seat means, and a valve stem means movably guided by said guides and having valve member means for cooperating with said valve seat means to open and close the same, said valve seat means comprising two spaced apart and aligned valve seats, said valve member means of said valve stem means comprising two spaced apart valve members on said valve stem means for respectively cooperating with said valve seats to substantially simultaneously open and close the same, said valve seats respectively having openings passing therethrough, said guides of said cage comprising a pair of openings passing through opposed ends of said cage and being disposed in alignment with openings of said valve seats, said cage having a pair of transverse openings formed therein respectively leading from one of said inlet and said outlet of said valve body to said guide openings thereof whereby said guide openings respectively interconnect said transverse openings to said valve seat openings.
Claim 9
Independent Claim
198 words
A method of making a valve construction comprising the steps of forming a valve body with an inlet and an outlet interconnected together by a chamber of said valve body, forming a one-piece valve seat cage, disposing said cage in said chamber so that valve seat means of said cage is disposed between said inlet and said outlet, forming said cage with integral guides disposed on opposite sides of said valve seat means, forming a valve stem means, assemblying said valve stem means with said cage so that said valve stem means is movably guided by said guides and has valve member means thereof cooperating with said valve seat means to open and close the same, forming said valve body with an opening therein leading to said chamber, inserting said valve seat chage through said opening into said chamber and removing said cage from said chamber out through said opening, detachably securing a cover member to said valve body to close said opening, forming said valve body from a one-piece structure, and forming a bonnet integrally with said valve body in aligned relation to said opening and on the opposed side of said valve body from said opening.
Claim 10
Independent Claim
198 words
A method of making a valve construction comprising the steps of forming a valve body with an inlet and an outlet interconnected together by a chamber of said valve body, forming a one-piece valve seat cage, disposing said cage in said chamber so that valve seat means of said cage is disposed between said inlet and said outlet, forming said cage with integral guides disposed on opposite sides of said valve seat means, forming a valve stem means, assemblying said valve stem means with said cage so that said valve stem means is movably guided by said guides and has valve member means thereof cooperating with said valve seat means to open and close the same, forming said valve body with an opening therein leading to said chamber, inserting said valve seat chage through said opening into said chamber and removing said cage from said chamber out through said opening, detachably securing a cover member to said valve body to close said opening, forming said valve body from a one-piece structure, and forming a bonnet integrally with said valve body in aligned relation to said opening and on the opposed side of said valve body from said opening.
Claim 11
Dependent Claim
32 words
A method as set forth in claim 7 and including the steps of forming said bonnet with an opening passing therethrough, and disposing part of said valve stem means through said opening.
Claim 12
Dependent Claim
41 words
A method as set forth in claim 8 and including the steps of forming part of said opening of said bonnet as a packing cavity, and disposing packing means in said cavity to surround said part of said valve stem means.
Claim 13
Dependent Claim
53 words
A method as set forth in claim 7 and including the steps of forming said valve body with shoulder means, and forming said cage with shoulder means adjacent said valve seat means to cooperate with said shoulder means of said valve body to seal said cage in said chamber of said valve body.
Claim 14
Dependent Claim
31 words
A method as set forth in claim 10 and including the step of disposing gasket means between said shoulder means of said valve body and said shoulder means of said cage.
Claim 15
Independent Claim
242 words
A method of making a valve construction comprising the steps of forming a valve body with an inlet and outlet interconnected together by a chamber of said valve body, forming a one-piece valve seat cage, disposing said cage in said chamber so that valve seat means of said cage is disposed between said inlet and said outlet, forming said cage with integral guides disposed on opposite sides of said valve seat means, forming a valve stem means, assembling said valve stem means with said cage so that said valve stem means is movably guided by said guides and has valve member means thereof cooperating with said valve seat means to open and close the same, said valve seat means comprising two spaced apart and aligned valve seats, said valve member means of said valve stem means comprising two spaced apart valve members on said valve stem means for respectively cooperating with said valve seats to substantially simultaneously open and close the same, forming said valve seats respectively with openings passing therethrough, said guides of said cage comprising a pair of openings passing through opposed ends of said cage and being disposed in alignment with openings of said valve seats, and forming said cage with a pair of transverse openings respectively leading from one of said inlet and said outlet of said valve body to said guide openings thereof whereby said guide openings respectively interconnect said transverse openings to said valve seat openings.
Claim 16
Independent Claim
242 words
A method of making a valve construction comprising the steps of forming a valve body with an inlet and outlet interconnected together by a chamber of said valve body, forming a one-piece valve seat cage, disposing said cage in said chamber so that valve seat means of said cage is disposed between said inlet and said outlet, forming said cage with integral guides disposed on opposite sides of said valve seat means, forming a valve stem means, assembling said valve stem means with said cage so that said valve stem means is movably guided by said guides and has valve member means thereof cooperating with said valve seat means to open and close the same, said valve seat means comprising two spaced apart and aligned valve seats, said valve member means of said valve stem means comprising two spaced apart valve members on said valve stem means for respectively cooperating with said valve seats to substantially simultaneously open and close the same, forming said valve seats respectively with openings passing therethrough, said guides of said cage comprising a pair of openings passing through opposed ends of said cage and being disposed in alignment with openings of said valve seats, and forming said cage with a pair of transverse openings respectively leading from one of said inlet and said outlet of said valve body to said guide openings thereof whereby said guide openings respectively interconnect said transverse openings to said valve seat openings.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |