US1856105A - Air trap for liquid pressure lines - Google Patents
Air trap for liquid pressure lines Download PDFInfo
- Publication number
- US1856105A US1856105A US480267A US48026730A US1856105A US 1856105 A US1856105 A US 1856105A US 480267 A US480267 A US 480267A US 48026730 A US48026730 A US 48026730A US 1856105 A US1856105 A US 1856105A
- Authority
- US
- United States
- Prior art keywords
- valve
- pressure
- chamber
- liquid
- liquid pressure
- 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 - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/76—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
- B67D7/763—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators of air separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0063—Regulation, control including valves and floats
-
- 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
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/3003—Fluid separating traps or vents
- Y10T137/3084—Discriminating outlet for gas
- Y10T137/309—Fluid sensing valve
- Y10T137/3099—Float responsive
-
- 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
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7358—By float controlled valve
- Y10T137/7368—Servo relay operation of control
- Y10T137/7371—Fluid pressure
- Y10T137/7378—From tank
Definitions
- the invention relates to whatmight be termed a servo-valve mechanism for equipment of the above character wherein the etl' ect ot' the pressure of the fluid upon the air releasing mechanism is negligible in so tar as the functioning of the device is concerned.
- mechanism for separating a gas from a liquid and the forms of such mechanisms have uniformly included either a balanced valve or a float actuated valve which is designed to close the air vent when the liquid level rises above a predetermined amount.
- the present invention therefore seeks to provide a device for separating a gas from a liquid regardless of the pressure under which the system is operatin
- the mechanism may be used in a Wide range of service other than that of gasoline dispensing equipment as described herein.
- a further object of the invention is to pro vide a power operating device for separating gas from a liquid, the power utilized being 6, 1930.
- a further object of the invention is to provide a servo valve mechanism for operating a device of the above character.
- a separating chamber is indicated at a, being provided with a supply pipe a and a discharge pipe a
- a cover plate a is secured to the housing a by means of bolts a and is formed with a valve aperture a.
- This valve aperture is provided with a valve seat a which cooperates with a movable valve member a having an extension a which projects Within the housing and is subject to the pressure existing therein.
- auxiliary housing b is secured to the cover plate a by means of bolts 6, this housing being formed with a bellows chamber 6 and having an air vent communicating therewith.
- the bellows chamber communicates with the valve passage a and contains a belows 0 which is secured to a base plate a and carries a plate 0 upon which the valve a7 is mounted.
- the upper extremity of the auxiliary housing is formed with a recess 0 which communicates with an aperture 0 formed in the base plate 0 and a passage 0 which is drilled in the upper wall of the auxiliary housing.
- the outer extremity of the passage is closed by means of a screw 0.
- a second chamber a is formed, this chamber communicating with the interior of the housing a through an aperture a formed in the cover plate a
- a spider c is threaded into the lower extremity of the chamber 0 and serves as a spacer for a valve rod (Z, described in further detail hereinafter.
- a passage 0 is drilled in the top of the housing 6 and is provided with a valve seat 0
- the upper extremity of chamber 0 is restricted at 0 and receives a valve seat 0 the valve seat being formed with an axial passage 0 through which a valve rod d passes.
- valve rod (Z) is formed with an oppositely tapered valve head (1 which is adapted to cooperate with the valve seats 0 and 0.
- a flanged collar 01 is secured, the collar receiving the arms of a bifurcated lever e which is secured to a float arm e.
- the float arm 6 is pivoted at 6 upon an arm 6 secured to the auxiliary housing I; and carries a float e which is adapted to rise and fall with the liquid level within the housmg a.
- valve mechanism which functions effectively to permit air to be separated from the liquid regardless of the pressure to which the liquid is subjected.
- a collecting chamber a gas vent therein I communicating with an outlet, means to direct a flow of a liquid through the chamber, a valve for the vent, pressure responsive means to operate the valve, means to subject the pressure responsive means to the pressure of the outlet, means to subject the said means to the pressure within the chamber, and means responsive to the liquid level to control the two last named means.
- a collecting chamber means to direct a flow of a liquid through the chamber, a valve for the vent, pressure responsive means to operate the valve, said means having a normal bias tending to close the valve, means to subject the pressure responsive means to atmospheric pressure, means to subject the said means to the pressure within the chamber, and means respon-
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
May 3, 1932. w, MARDEN 1,856,105
AIR TRAP FOR LIQUID PRESSURE LINES Filed Sept. 6, 1930 INVENTOR ll i'lllam Ljlwrdall,
BY I 02147? ATTORNEY/5 llflthlflljlfilhl', 01ft ELIMHUREH', YORK, ASSIGNUR T0 NEPTUNE METER GOM- lPAhl'Y, NEW YORK, N. "521, A CORPORATIUN OF NEW JERSEY .lClEtAlP FUR lh'lIQUID PRESSURE lLIIhTlES .l'tpnlicatien fiIed September T he present invention relates to air releasmechanism for gasoline dispensing apparatus and embodies, more specifically, an improved air trap and release for gasoline measuring and dispensing equipment wherein high pressures are utilized in directing the flow of the gasoline.
More particularly, the invention relates to whatmight be termed a servo-valve mechanism for equipment of the above character wherein the etl' ect ot' the pressure of the fluid upon the air releasing mechanism is negligible in so tar as the functioning of the device is concerned. There have been provided many terms of mechanism for separating a gas from a liquid and the forms of such mechanisms have uniformly included either a balanced valve or a float actuated valve which is designed to close the air vent when the liquid level rises above a predetermined amount. Where the fluid is handled under low pressures, these forms of devices are satisfactory inasmuch as they effect the separation of the gas from the liquid' It has been found, however, that such devices are unsatisfactory where the liquid and gas are handled under high pressures. Such pressures operate directly against the valve to maintain the same closed regardless of the tloat. The float thus is ineffective to operate the valve when the fluid is under high pres sure and merely is held in a fixed position by the pressure upon the valve regardless of the liquid level in the float chamber. Where the fluid involved is of a low specific gravity, the weight of the float cannot be made sufficiently great to overcome the pressure of the tluid upon the valve nor can the size of the float be made very great without danger of collapseunder the high pressures involved.
The present invention therefore seeks to provide a device for separating a gas from a liquid regardless of the pressure under which the system is operatin In this connection, it will be readily apparent that the mechanism may be used in a Wide range of service other than that of gasoline dispensing equipment as described herein.
A further object of the invention is to pro vide a power operating device for separating gas from a liquid, the power utilized being 6, 1930. Serial No. dbEWG'Y.
the combination of atmospheric pressure upon a suitable device with the pressure available in the system.
A further object of the invention is to provide a servo valve mechanism for operating a device of the above character.
Further objects of the invention, not specilically enumerated above, will be apparent as it is described in further detail in connection with the accompanying drawing, the single figure of which is a View in vertical section, taken through a device constructed in accordance with the present invention.
Referring to the drawing, a separating chamber is indicated at a, being provided with a supply pipe a and a discharge pipe a In the suggested form, a cover plate a is secured to the housing a by means of bolts a and is formed with a valve aperture a. This valve aperture is provided with a valve seat a which cooperates with a movable valve member a having an extension a which projects Within the housing and is subject to the pressure existing therein. I
An auxiliary housing b is secured to the cover plate a by means of bolts 6, this housing being formed with a bellows chamber 6 and having an air vent communicating therewith. The bellows chamber communicates with the valve passage a and contains a belows 0 which is secured to a base plate a and carries a plate 0 upon which the valve a7 is mounted.
The upper extremity of the auxiliary housing is formed with a recess 0 which communicates with an aperture 0 formed in the base plate 0 and a passage 0 which is drilled in the upper wall of the auxiliary housing. The outer extremity of the passage is closed by means of a screw 0.
lVithin the auxiliary housing I), a second chamber a is formed, this chamber communicating with the interior of the housing a through an aperture a formed in the cover plate a A spider c is threaded into the lower extremity of the chamber 0 and serves as a spacer for a valve rod (Z, described in further detail hereinafter.
A passage 0 is drilled in the top of the housing 6 and is provided with a valve seat 0 The upper extremity of chamber 0 is restricted at 0 and receives a valve seat 0 the valve seat being formed with an axial passage 0 through which a valve rod d passes.
The upper extremity of valve rod (Z is formed with an oppositely tapered valve head (1 which is adapted to cooperate with the valve seats 0 and 0. Upon the lower extremity of the rod (Z, a flanged collar 01 is secured, the collar receiving the arms of a bifurcated lever e which is secured to a float arm e. The float arm 6 is pivoted at 6 upon an arm 6 secured to the auxiliary housing I; and carries a float e which is adapted to rise and fall with the liquid level within the housmg a.
From the foregoing description, it will be seen that air in the housing a may normally escape through the valve seat a into the chamber 6 and through the air vent 6 The valve 11 is maintained unseated by the pressure of the fluid within the chamber. WVhen the fluid level rises the float 6 will rise elevating the valve head d and eventually clos-- ing the communication afforded by passage 0 between the atmosphere and the passage 0 Atmospheric pressure will thus be relieved within the bellows o and the pressure of the fluid within the housing a will be applied to the bellows. Inasmuch as the area of the bellows is greater than the area of the valve port a", the diflerence in pressures upon the valve due thereto will tend to force the valve against its seat Under this condition, a slight bias on the bellows is desirable but not essential.
It will thus be seen that a valve mechanism has been provided which functions effectively to permit air to be separated from the liquid regardless of the pressure to which the liquid is subjected.
While the invention has been described with specific reference to the accompanying drawing, it is not to be limited, save as defined in the appended claims.
I claim as my invention:
lows and the atmosphere or first chamber selectively, and a float operated mechanism for controlling the last named valve.
This specification signed this 3rd day of September, A. D., 1930. 5 WILLIAM L. MARDEN.
1. A collecting chamber, a gas vent therein I communicating with an outlet, means to direct a flow of a liquid through the chamber, a valve for the vent, pressure responsive means to operate the valve, means to subject the pressure responsive means to the pressure of the outlet, means to subject the said means to the pressure within the chamber, and means responsive to the liquid level to control the two last named means.
2. A collecting chamber, a gas vent therein, means to direct a flow of a liquid through the chamber, a valve for the vent, pressure responsive means to operate the valve, said means having a normal bias tending to close the valve, means to subject the pressure responsive means to atmospheric pressure, means to subject the said means to the pressure within the chamber, and means respon-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US480267A US1856105A (en) | 1930-09-06 | 1930-09-06 | Air trap for liquid pressure lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US480267A US1856105A (en) | 1930-09-06 | 1930-09-06 | Air trap for liquid pressure lines |
Publications (1)
Publication Number | Publication Date |
---|---|
US1856105A true US1856105A (en) | 1932-05-03 |
Family
ID=23907303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US480267A Expired - Lifetime US1856105A (en) | 1930-09-06 | 1930-09-06 | Air trap for liquid pressure lines |
Country Status (1)
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US (1) | US1856105A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2673618A (en) * | 1952-10-10 | 1954-03-30 | Rockwell Mfg Co | Two-stage air eliminator |
US2674189A (en) * | 1952-01-04 | 1954-04-06 | Dayton Pump & Mfg Co | Pumping system and method of operation |
US2699760A (en) * | 1950-08-08 | 1955-01-18 | Bell & Gossett Co | Hot-water heating system |
US2703074A (en) * | 1950-08-08 | 1955-03-01 | Bell & Gossett Co | Hot-water heating system |
US2745511A (en) * | 1954-05-03 | 1956-05-15 | Brodie Ralph N Co | Air eliminator valve |
US2913068A (en) * | 1957-09-24 | 1959-11-17 | Chicago Stainless Equipment | Air eliminator |
US2960104A (en) * | 1955-08-15 | 1960-11-15 | Tokheim Corp | Gas separator and eliminator with servo vent valve |
US3074217A (en) * | 1961-05-29 | 1963-01-22 | Black & Decker Mfg Co | Shut-off valve mechanism for wet pick-up vacuum cleaner |
US5090439A (en) * | 1989-07-24 | 1992-02-25 | Apco Valve And Primer Corporation | Atmospheric compensating automatic air release valve |
-
1930
- 1930-09-06 US US480267A patent/US1856105A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2699760A (en) * | 1950-08-08 | 1955-01-18 | Bell & Gossett Co | Hot-water heating system |
US2703074A (en) * | 1950-08-08 | 1955-03-01 | Bell & Gossett Co | Hot-water heating system |
US2674189A (en) * | 1952-01-04 | 1954-04-06 | Dayton Pump & Mfg Co | Pumping system and method of operation |
US2673618A (en) * | 1952-10-10 | 1954-03-30 | Rockwell Mfg Co | Two-stage air eliminator |
US2745511A (en) * | 1954-05-03 | 1956-05-15 | Brodie Ralph N Co | Air eliminator valve |
US2960104A (en) * | 1955-08-15 | 1960-11-15 | Tokheim Corp | Gas separator and eliminator with servo vent valve |
US2913068A (en) * | 1957-09-24 | 1959-11-17 | Chicago Stainless Equipment | Air eliminator |
US3074217A (en) * | 1961-05-29 | 1963-01-22 | Black & Decker Mfg Co | Shut-off valve mechanism for wet pick-up vacuum cleaner |
US5090439A (en) * | 1989-07-24 | 1992-02-25 | Apco Valve And Primer Corporation | Atmospheric compensating automatic air release valve |
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