Patent US3590473A successfully refreshed from Google Patents.
US3590473A
Expired / Lapsed
US
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Method of manufacturing hydraulic valve with fluid meter connections
Assignee: TDK Micronas GmbH
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Filing: 1968-03-14
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Granted: 1971-07-06
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Expires: 1988-03-14
Abstract
Abstract The rotor in a square cock head valve has the usual main fluid passage. In addition, it also has upstream and downstream orifices communicatingly connectably to a meter attachment point on the valve rotor. This way, a meter may be attached or removed by merely closing the main valve. There is no need to provide pressure tapping valves for controlling the flow of fluids when the meter is attached to or removed from its connections with the housing. When the meter is not attached, nonleaking plugs seal off the valve.
Inventors
- 👤 Gilbert Fritz Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:21
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/10; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86726; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49416; Y10T29/49417; Y10T29/49826; Y10T29/49861
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
A method of manufacturing a fluid valve, said fluid valve including a valve body having inlet and outlet orifices, comprising the steps of forming a square cock rotor having a fluid passage opening and a pair of pressure tapping openings, machining said openings to predetermined contours, assembling said square cock rotor in said valve body, attaching a meter to said pressure tapping openings while said valve is in a closed position, and calibrating said valve capacity responsive to meter readings while said rotor is in a number of different positions.
Claim 2
Independent Claim
90 words
A method of manufacturing a fluid valve, said fluid valve including a valve body having inlet and outlet orifices, comprising the steps of forming a square cock rotor having a fluid passage opening and a pair of pressure tapping openings, machining said openings to predetermined contours, assembling said square cock rotor in said valve body, attaching a meter to said pressure tapping openings while said valve is in a closed position, and calibrating said valve capacity responsive to meter readings while said rotor is in a number of different positions.
Claim 3
Dependent Claim
26 words
The method of claim 1 and the steps of removing said meter while said valve is in a closed position, and sealing said pressure tapping openings.
Claim 4
Independent Claim
59 words
A method of manufacturing valves comprising the steps of (A) casting a housing having a first passage way therein, (B) casting a rotor having a second passage way therein for controlling a flow through said housing, (C) assembling said rotor in said housing and (D) machining said Two passage ways to form a precisely shaped opening through said valve.
Claim 5
Independent Claim
59 words
A method of manufacturing valves comprising the steps of (A) casting a housing having a first passage way therein, (B) casting a rotor having a second passage way therein for controlling a flow through said housing, (C) assembling said rotor in said housing and (D) machining said Two passage ways to form a precisely shaped opening through said valve.
Claim 6
Dependent Claim
32 words
The method of claim 3 and the step of aligning said two passage ways before said machining whereby said machining shapes said two passage ways simultaneously thus assuring registration of these openings.
Claim 7
Dependent Claim
21 words
The method of claim 4 wherein said machining step includes running a broaching means through said housing and said rotor simultaneously.
Claim 8
Dependent Claim
24 words
The method of claim 5 wherein said machining step includes forming an index on said valve while said parts are aligned for said broaching.
Claim 9
Dependent Claim
17 words
The method of claim 6 and the step of aligning a calibration scale with said indexing means.
References Cited (Backward Citations)
CA667517A
Cited
US1456942A
Cited
US2133742A
Cited
US2140562A
Cited
US2525831A
Cited
US3172192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |