US3559950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: GOODDARD IND Inc
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Filing: 1967-11-21
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Granted: 1971-02-02
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Expires: 1987-11-21
Abstract
Abstract A globe valve adapted for use at cryogenic temperatures having a valve seat in the valve body adapted to be closed by a conical seat disc. The seat disc is supported for vertical movement in a seat holder having a downwardly flared peripheral flange rolled about the seat disc periphery. The holder is carried by an elongated stem which extends through the valve bonnet. The stem and bonnet are sealed by a series of compressed Teflon and brass rings concentric with and between the upper end of the valve bonnet and the stem. The rings are axially compressed between a flange formed in the valve bonnet and a sleeve follower which in turn is secured by a packing nut with a washer between one end of the packing nut and the sleeve follower.
Inventors
- 👤 Donald R Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:21
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/02; F16K41/04; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944; Y10S277/945; Y10S277/946
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
177 words
A globe valve for use at cryogenic temperatures comprising a valve body having a passage extending theretHrough with a valve seat intermediate the ends of the passage, a bonnet having a cylindrical opening secured to said body, an elongated stem extending through said cylindrical opening and supporting at one end a seat disc holder with a seat disc therein within said body for axial movement to and away from said valve seat, a plurality of alternating metal and plastic rings coaxial with said stem and positioned in said cylindrical opening, means for maintaining said plurality of rings under compressive force including means at one end interengaging said bonnet with said plurality of rings and a sleeve follower coaxial with said stem at the other end, a packing nut coaxial with and engaging said sleeve follower and adjustably interengaged with said bonnet and a washer coaxial with said stem and positioned between corresponding ends of said sleeve follower and said packing nut providing lateral support for said stem and a moisture barrier between said packing nut and stem.
Claim 2
Dependent Claim
177 words
A globe valve for use at cryogenic temperatures comprising a valve body having a passage extending theretHrough with a valve seat intermediate the ends of the passage, a bonnet having a cylindrical opening secured to said body, an elongated stem extending through said cylindrical opening and supporting at one end a seat disc holder with a seat disc therein within said body for axial movement to and away from said valve seat, a plurality of alternating metal and plastic rings coaxial with said stem and positioned in said cylindrical opening, means for maintaining said plurality of rings under compressive force including means at one end interengaging said bonnet with said plurality of rings and a sleeve follower coaxial with said stem at the other end, a packing nut coaxial with and engaging said sleeve follower and adjustably interengaged with said bonnet and a washer coaxial with said stem and positioned between corresponding ends of said sleeve follower and said packing nut providing lateral support for said stem and a moisture barrier between said packing nut and stem.
Claim 3
Dependent Claim
52 words
A valve as set forth in claim 1 wherein said means at one end comprises an inwardly flared flange in said cylindrical opening forming a constriction therein, a lower adapter coaxial with said stem having its periphery supported on said inwardly flared flange and engaging one end of said plurality of rings.
Claim 4
Dependent Claim
94 words
A valve as set forth in claim 1 wherein said seat disc has a continuous surface adapted to be engaged within its periphery by said valve seat whereby closure of the said seat disc over said valve seat forms a continuous and integral closure over said valve seat, said seat disc holder having depending flanges inwardly flared and engaging said seat disc at its periphery with means interengaging said seat disc holder and said one end of said stem, and means forming a venting passage between said seat disc and said seat disc holder.
Claim 5
Dependent Claim
25 words
A valve as set forth in claim 1 wherein said plastic rings have an outer periphery greater than the outer periphery of said metal rings.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |