CA937841A - Pressure equalization valve - Google Patents

Pressure equalization valve

Info

Publication number
CA937841A
CA937841A CA108204A CA108204A CA937841A CA 937841 A CA937841 A CA 937841A CA 108204 A CA108204 A CA 108204A CA 108204 A CA108204 A CA 108204A CA 937841 A CA937841 A CA 937841A
Authority
CA
Canada
Prior art keywords
pressure equalization
equalization valve
valve
pressure
equalization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA108204A
Other versions
CA108204S (en
Inventor
D. Horton Dee
Dee D. Horton, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Overhead Door Corp
Original Assignee
Overhead Door Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Overhead Door Corp filed Critical Overhead Door Corp
Application granted granted Critical
Publication of CA937841A publication Critical patent/CA937841A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E05F15/75—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects responsive to the weight or other physical contact of a person or object
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7869—Biased open
CA108204A 1970-07-02 1971-03-19 Pressure equalization valve Expired CA937841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5199370A 1970-07-02 1970-07-02

Publications (1)

Publication Number Publication Date
CA937841A true CA937841A (en) 1973-12-04

Family

ID=21974706

Family Applications (1)

Application Number Title Priority Date Filing Date
CA108204A Expired CA937841A (en) 1970-07-02 1971-03-19 Pressure equalization valve

Country Status (2)

Country Link
US (1) US3626122A (en)
CA (1) CA937841A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH1832H (en) * 1996-06-03 2000-02-01 The United States Of America As Represented By The Secretary Of The Army Electromagnetically transparent fluidic operators for remote operation of electric switches and method of adapting electric switches for remote, fluidic operation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US266462A (en) * 1882-10-24 Vent-valve
NL169201B (en) * 1951-04-30 Diamond Shamrock Corp PROCESS FOR PREPARING A HOMOGENOUS LIQUID PREPARATION FOR THE PHOSPHATING OF METALS, AND THE METAL OBJECTS WHOLLY OR PARTIALLY COATED UNDER APPLICATION OF THE PREPARATION OBTAINED UNDER THIS PROCEDURE.
CH403014A (en) * 1963-09-10 1965-11-30 Atlas Kassenfabrik Ag Switching device controlled by a pneumatic carpet, especially for automatic door openers

Also Published As

Publication number Publication date
US3626122A (en) 1971-12-07

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