US2259809A - freeman - Google Patents

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Publication number
US2259809A
US2259809A US2259809DA US2259809A US 2259809 A US2259809 A US 2259809A US 2259809D A US2259809D A US 2259809DA US 2259809 A US2259809 A US 2259809A
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United States
Prior art keywords
valve element
stem
exhaust
freeman
valve
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Expired - Lifetime
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00Devices for relieving the pressure on the sealing faces
    • F16K39/02Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/024Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2496Self-proportioning or correlating systems
    • Y10T137/2544Supply and exhaust type
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86928Sequentially progressive opening or closing of plural valves
    • Y10T137/86936Pressure equalizing or auxiliary shunt flow
    • Y10T137/86944One valve seats against other valve [e.g., concentric valves]
    • Y10T137/86984Actuator moves both valves

Description

Oct. 2-1, 1941. v w FREEMAN 2,259,809

' W W W A A J h u Filed March 25, 1940 biasing the two inlet valve elements closed piston 6 upwardly. With the two valve elements the pressure in chamber H can be increased in small increments from zero upwardly which is almost impossible, except by very skillful manipulations, where only a single large valve is employed.

Being .aware of the possibility of modifications in the particular structure herein described with out departing from the fundamental principles of my invention, I do not intend that its scope be limited except as set forth by the appended claims.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:-

1. In control valve mechanism, a casing provided with a fluid pressure receiving chamber having an inlet port to be connected to a source of pressure and an outlet port-to be connected with a member to be actuated, means forming a movable wall for said chamber subject to the fluid pressure therein and having an exhaust port, said exhaust port and inlet port being in axial alignment, means for biasing the movable wall to a normally inoperative position, a valve stem extending through the inlet port, an exhaust valve element secured to one end of the stem for cooperation with exhaust port, a main inlet valve element loosely mounted on the stem for closing the inlet port and being subject to a seating pressure from the source of pressure; means forming a fluid passage through the main valve element, a secondary valve element secured to the stem and cooperating with the main valve element to close said passage, said secondary valve element and stem being the sole support for the main valve element when unseated, a spring for the stem to such a position that the exhaust valve element will be open when the movable Wall is in its inoperative position, means on the stem for operating the main inlet valve element after the stem and secondary valve element have been moved to open the passage, and actuating means for moving the wall to thereby close the exhaust valve element and subsequently move said exhaust valve element and stem to successively open the secondary and main inlet valve elements.

2. In control valve mechanism provided with a fluid receiving chamber having an inlet port and a movable wall including an exhaust port aligned with the inlet port, the combination therewith of a valve stem, an exhaust valve element secured to the stem for cooperation with the exhaust port when the wall is moved, a secondary inlet valve element secured to said stem in spaced relation to the exhaust valve element, means for adjusting the relative positions of the exhaust I and secondary valve elements on the stem, a main inlet valve element loosely mounted on the stem between the two named valve elements for cooperation with the inlet port and engageable by the secondary valve element for closing the fluid passage therethrough adjacent the stem, said main inlet valve being. solely supported by the a predetermined distance causing the secondary Valve element to open the fluid passage.

WALTER R. FREEMAN.

Oct. 21, 1941. w. R. FREEMAN 2, 8

CLUTCH AND BRAKE CONTROL MECHANISM Filed Aug. 26, 1940 ZSheets-Sheet 1 v m I g m \J m N n N r N o to r- N I w l O o g l: o

o 9 ll F m In GD 0 o 2 e a m N 410 l 0 '7 Q v '5 0/ I III- N V l (O z 8 A \Y I, 3: F I 7 g I O INVENTOR W.R.FREEMAN A TTORNEY

US2259809D freeman Expired - Lifetime US2259809A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417524A (en) * 1944-01-14 1947-03-18 Goodman Mfg Co Fluid operated control system
US2445631A (en) * 1946-05-31 1948-07-20 Borg Warner Metering valve
US2462558A (en) * 1944-06-15 1949-02-22 Cameron Machine Co Tension control means for running webs
US2588549A (en) * 1945-10-19 1952-03-11 John W Marsh Throttle valve application
US2623331A (en) * 1950-08-01 1952-12-30 Agro Phosphate Company Diaphragm type of pressure regulators
US2654391A (en) * 1943-03-22 1953-10-06 Bendix Aviat Corp Servomotor control valve
US2707966A (en) * 1950-05-25 1955-05-10 John F Taplin Pressure regulator valve
US2720887A (en) * 1952-11-21 1955-10-18 New York Air Brake Co Pressure reducing valve with over pressure relief
US2747599A (en) * 1953-07-21 1956-05-29 Westinghouse Air Brake Co Fluid pressure regulating device
US2781776A (en) * 1951-04-10 1957-02-19 Gratzmuller Jean Louis Pressure regulating valves
US2869725A (en) * 1956-03-26 1959-01-20 F E Myers & Bro Co Quick drain device
US2872905A (en) * 1956-06-25 1959-02-10 Automotive Prod Co Ltd Valve devices for controlling servodevices of the differential air pressure type
US2910051A (en) * 1957-05-16 1959-10-27 Bendix Aviat Corp Pneumatic brake valve to provide feel
US3032063A (en) * 1960-03-29 1962-05-01 Westinghouse Air Brake Co Combined check and choke valve device
US3058782A (en) * 1960-06-15 1962-10-16 Magneti Marelli Spa Compressed air distributor particularly for motor vehicle braking systems
US3181917A (en) * 1962-07-26 1965-05-04 Berg Airlectro Products Co Relay valve
DE1230687B (en) * 1960-06-15 1966-12-15 Magneti Marelli Spa Brake valve, in particular for air brake systems of motor vehicles
US3439711A (en) * 1966-07-06 1969-04-22 Thermal Hydraulics Corp Sequentially power actuated plural valves
US3698415A (en) * 1969-08-01 1972-10-17 Linde Ag Pressure-regulating valve
US4193641A (en) * 1978-07-10 1980-03-18 Wabco Westinghouse Gmbh Brake valve
FR2528209A1 (en) * 1982-06-07 1983-12-09 Dunand Jean Valve for organ wind chamber - controls wind distribution to the pipes of mechanically controlled organ and has compensator
US4768556A (en) * 1986-10-31 1988-09-06 Rees J G Brake system and relay valves for railroad trains

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654391A (en) * 1943-03-22 1953-10-06 Bendix Aviat Corp Servomotor control valve
US2417524A (en) * 1944-01-14 1947-03-18 Goodman Mfg Co Fluid operated control system
US2462558A (en) * 1944-06-15 1949-02-22 Cameron Machine Co Tension control means for running webs
US2588549A (en) * 1945-10-19 1952-03-11 John W Marsh Throttle valve application
US2445631A (en) * 1946-05-31 1948-07-20 Borg Warner Metering valve
US2707966A (en) * 1950-05-25 1955-05-10 John F Taplin Pressure regulator valve
US2623331A (en) * 1950-08-01 1952-12-30 Agro Phosphate Company Diaphragm type of pressure regulators
US2781776A (en) * 1951-04-10 1957-02-19 Gratzmuller Jean Louis Pressure regulating valves
US2720887A (en) * 1952-11-21 1955-10-18 New York Air Brake Co Pressure reducing valve with over pressure relief
US2747599A (en) * 1953-07-21 1956-05-29 Westinghouse Air Brake Co Fluid pressure regulating device
US2869725A (en) * 1956-03-26 1959-01-20 F E Myers & Bro Co Quick drain device
US2872905A (en) * 1956-06-25 1959-02-10 Automotive Prod Co Ltd Valve devices for controlling servodevices of the differential air pressure type
US2910051A (en) * 1957-05-16 1959-10-27 Bendix Aviat Corp Pneumatic brake valve to provide feel
US3032063A (en) * 1960-03-29 1962-05-01 Westinghouse Air Brake Co Combined check and choke valve device
US3058782A (en) * 1960-06-15 1962-10-16 Magneti Marelli Spa Compressed air distributor particularly for motor vehicle braking systems
DE1230687B (en) * 1960-06-15 1966-12-15 Magneti Marelli Spa Brake valve, in particular for air brake systems of motor vehicles
US3181917A (en) * 1962-07-26 1965-05-04 Berg Airlectro Products Co Relay valve
US3439711A (en) * 1966-07-06 1969-04-22 Thermal Hydraulics Corp Sequentially power actuated plural valves
US3698415A (en) * 1969-08-01 1972-10-17 Linde Ag Pressure-regulating valve
US4193641A (en) * 1978-07-10 1980-03-18 Wabco Westinghouse Gmbh Brake valve
FR2528209A1 (en) * 1982-06-07 1983-12-09 Dunand Jean Valve for organ wind chamber - controls wind distribution to the pipes of mechanically controlled organ and has compensator
US4768556A (en) * 1986-10-31 1988-09-06 Rees J G Brake system and relay valves for railroad trains

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