US1666935A - Combination pressure-vacuum valve and thief hatch - Google Patents

Combination pressure-vacuum valve and thief hatch Download PDF

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Publication number
US1666935A
US1666935A US128247A US12824726A US1666935A US 1666935 A US1666935 A US 1666935A US 128247 A US128247 A US 128247A US 12824726 A US12824726 A US 12824726A US 1666935 A US1666935 A US 1666935A
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United States
Prior art keywords
valve
cover
base
gaskets
vacuum valve
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Expired - Lifetime
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US128247A
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Howell Harry Hammond
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W H ELLIOTT
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W H ELLIOTT
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Priority to US128247A priority Critical patent/US1666935A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • F16K17/19—Equalising valves predominantly for tanks
    • 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
    • Y10T137/7771—Bi-directional flow valves
    • Y10T137/7772—One head and seat carried by head of another
    • Y10T137/7773—Supporting valve only spring biased
    • 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
    • Y10T137/7771—Bi-directional flow valves
    • Y10T137/7772—One head and seat carried by head of another
    • Y10T137/7774—Supporting valve spring carried by supporting valve
    • Y10T137/7775—Spring stop on supported valve stem

Definitions

  • This invention aims to provide, in a single structure, a means whereby'access may be had to an oil tank for ga ing or thieving, means whereby pressure wit in the tank may be relieved and a means whereby a partial vacuum within the tank may be relieved, the practice having been, heretofore, to rovide a thief hatch, a pressure release, an a vacuum release, as separate articles.
  • Figure 1 shows in side elevatlon, a device constructed in accordance with the invention' Figure 2 is a section on the line 2-2 of Figure 1;
  • Figure 3 is a section on the line 3--3 of Figure 2.
  • the device includes a tubular base 1, which may be of frusto-conical form, the base being equipped at its lower end with a flange 2 adapted to receive securing elements 3 whereby the base is held on the top 4 of a tank in which oil and like products are stored.
  • the base 1 has an inwardly extended and broadened rim or seat 5.
  • the flange 2 hasl an extended part 6, and an upstanding ear 7 is joinedv integrally to the part 6, to the flange 2 and to the tubular base 11, the ear 7 having a vertically elongated s ot 8.
  • the device includes a cover which is marked by the numeral 9.
  • the cover 9 includes an outer bod '10 of tubular form, a -tube 11 located within the body 10 and a base 12 joining the lower end of the tube 11 with the corresponding part of the body 10, to
  • annular chamber 14 in which may be placed a weight 15, the weight being made surface with an annular seat 17, the walls of which converge downwardly as at 18 to cooperate with annular gaskets 19 and 20, made of a suitable composition, a retaining ring 21 being located between the gaskets 19 and 20, and being beveled upon its edges to cooperate with the gaskets 19 and 20, the gaskets being wedge-shaped in cross section, securing elements 22 connectin the ring or retainer 21 to the bottom 12 o the cover 9, a simple but effective means being provided, thus, for holding the gaskets 19 and 20 in place, securely but removably.
  • the outer gasket 19 enga es the rim 5 of the base 1 and affords an ermetic closurej at the point indicated.
  • the body of they cover 9 has a laterally projecting lug 23 provided with a recess 24 wherein 1s received the ear 7 of the base l.
  • the lug 23 carries a pivot element 25 received in the slot 8 of the ear 7. The cover 9, thus, is connected to the base 1,
  • the pivot element 25 is equipped at one end with a head 26 engaging one side of the lug 23.
  • a slot 27 across which extends a pin 28 on which is mounted the reduced U-shaped end 29 of a spring key including converging arms 30 which bear against one side of the lug 23 to hold the j pivot element 25 in place.
  • the body 10 of the cover 9 is equip ed at its upper end with an inwardly exten ed annular 'lip 31 provided with upstanding bosses 32.
  • Radial webs 33 project inwardy from the tube 11 and supportatubular gui e 34,disposed within the tube 11, the guide- 34 being supplied in its upper end with a ⁇ chamber 35 and being equipped in its lower end with a reduced bore 36.
  • vA lid 37 rests on the bosses 32 and is s aced thereby from upper end ofthe tube 11, the lid being held on the bosses by securing elements 38.
  • the lid 37 has a down-turned marginal rim 39.
  • a valve 40 in the form of a disk, bears against the gasket 20, the valve embodying a stem 41 slidable in the bore 36 of the guide 34.
  • An abutment collar 42 is threaded on the upper end of the stem 4l and is received v slidably in the chamber 35 of the guide 34.
  • a compression spring 43 is located in the chamber 35, about part of. the stem 41, one end of the spring engaging the'abutment collar 42, and the other end ot the spring engaging the guide 34 at the lower end of the chamber 35. The function ont the spring 43 is to seat the valve 40 against the gasket 20.
  • a valve opening means is provided, the same being in the form of a plunger 44 mounted to slide in the lid 37, the plunger being equipped at its lower end with a ltoot 45 bearing on the upper end of the valve stem 41,
  • theA plunger being supplied at its outer end with a button 46.
  • cover 9 may be swung to open position on the' pivot element 25, to permit thieving through the tubular base 1.
  • r1 ⁇ he operator can press down the stem 41 and open the Valve 40, by means of the plunger 44, thereby to ease od. the pressure in the tank before thieving.
  • rlFhe result is that when the cover 9 is swungto an open position, the operator is not spattered by a pudfof greasy vapor.
  • the apron 16 directs the gas and grease down Wardly, and does not permit is to blow side wise upon the garments otthe operator.
  • the cover 9 can open, either pivot-ally, or by vertical right-line movement, because the part 25 is received inthe vertically elongated slot 8. 'llhe pressure at which the cover 9 opens, responsive to ressure within the tank, may be governed by pouring more or less molten lead into the chamber 14, to form the weight 15.
  • the device forming the subject matter of this application comprises, in one structure, a thief hatch, a vacuum release valve, and a pressure release valve.
  • the gaskets 19 and 20 are made of yieldable material, and, consequently, there is a tight closure at all times between the asketl 19 and the rim 5, and between the gas et 20 and the valve 40: something which is not attained when a metal-to-metal contact is provided, a metal-to-metal construction being subject to temperature changes, expan.
  • the wall of the seat 17 slants away from one surface of the gaskets 19 andf20 ⁇ , and the edges of rin y21 slant .away from the inner surfaces oft e gaskets 19 and 20.
  • rlhis construction aii'ordsa space on each side of the gasket 19 and on each side of the gasket 20, to com ensate for the swelling of the gaskets 19 an 2O when they become saturated with oil.
  • a tubular base a substantially horizontal, weighted cover cooperating with the base to close it, means for connecting the cover to the base for swinging movement into a :tully openposition at the control of an operator, and for substantially vertical right-line sliding movement to and trom closed position with' res ect to the base responsive to pressure wit in a tank, an inwardly opening vacuum release valve carried by the cover, and means for holding the valve yieldably in closed position.
  • a tu bular base, a cover cooperating with the base to close it, means for connecting the cover movably to the base, a vacuum release valve carried by the cover, spring means tog closing the valve, and compressible gaskets carried by the cover, one gasket engaging the valve, and the other gasket engaging the e base.
  • a base including an outer body, a tube within the body and a bottom joining the tube with the body to form an annular weight-receiving chamber; a lid,
  • an inwardly opening valve cooperating with the base, spring-operated mechanism within' the tube and beneath the lid for holdin the valve a fully open osition at the will of an opyieldably closed to preventA ow of gas erator and or right-line movement to a. 10 through the tube, ⁇ a member mounted mov-"parti y open position responsive to gas ably in the lid and accessible from the outpressure Within the base and upon the valve.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

April 24,l 1928. V 1,666,935
H. H. HOWELL v COMBINATION PRESSURE VACUUM VALVE AND TIEF HATCH Filed Aug.. 9.. 1926 Mirow as 9 Patented Apr. 24, 1928.
UNITED STATES PATENT oFElcE.
HARRY HAMMOND HOWELL, OF KANSAS CITY, MISSOURI, ASSIGNOR OF ONE-HALF TO W. H. ELLIOTT, F TULSA, OKLAHOMA.
COMBINATION PRESSURE-VACUUM VALVE AND THIIE]I HATCH.
Application nled August 9, 1926. Serial No. 128,247.
This invention aims to provide, in a single structure, a means whereby'access may be had to an oil tank for ga ing or thieving, means whereby pressure wit in the tank may be relieved and a means whereby a partial vacuum within the tank may be relieved, the practice having been, heretofore, to rovide a thief hatch, a pressure release, an a vacuum release, as separate articles.
It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains. l
With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departingfrom the spirit of the invention.
In the drawings Figure 1 shows in side elevatlon, a device constructed in accordance with the invention' Figure 2 is a section on the line 2-2 of Figure 1;
Figure 3 is a section on the line 3--3 of Figure 2.
The device includes a tubular base 1, which may be of frusto-conical form, the base being equipped at its lower end with a flange 2 adapted to receive securing elements 3 whereby the base is held on the top 4 of a tank in which oil and like products are stored. At its upper end, the base 1 has an inwardly extended and broadened rim or seat 5. The flange 2 hasl an extended part 6, and an upstanding ear 7 is joinedv integrally to the part 6, to the flange 2 and to the tubular base 11, the ear 7 having a vertically elongated s ot 8.
The device includes a cover which is marked by the numeral 9. The cover 9 includes an outer bod '10 of tubular form, a -tube 11 located within the body 10 and a base 12 joining the lower end of the tube 11 with the corresponding part of the body 10, to
form an annular chamber 14 in which may be placed a weight 15, the weight being made surface with an annular seat 17, the walls of which converge downwardly as at 18 to cooperate with annular gaskets 19 and 20, made of a suitable composition, a retaining ring 21 being located between the gaskets 19 and 20, and being beveled upon its edges to cooperate with the gaskets 19 and 20, the gaskets being wedge-shaped in cross section, securing elements 22 connectin the ring or retainer 21 to the bottom 12 o the cover 9, a simple but effective means being provided, thus, for holding the gaskets 19 and 20 in place, securely but removably. The outer gasket 19 enga es the rim 5 of the base 1 and affords an ermetic closurej at the point indicated. The body of they cover 9 has a laterally projecting lug 23 provided with a recess 24 wherein 1s received the ear 7 of the base l. The lug 23 carries a pivot element 25 received in the slot 8 of the ear 7. The cover 9, thus, is connected to the base 1,
not only for hinged or swinging movement,
but for vertical right-line movement, a's well. The pivot element 25 is equipped at one end with a head 26 engaging one side of the lug 23. In the opposite end of the pivot element 25 there is a slot 27 across which extends a pin 28 on which is mounted the reduced U-shaped end 29 of a spring key including converging arms 30 which bear against one side of the lug 23 to hold the j pivot element 25 in place.
The body 10 of the cover 9 is equip ed at its upper end with an inwardly exten ed annular 'lip 31 provided with upstanding bosses 32. Radial webs 33 project inwardy from the tube 11 and supportatubular gui e 34,disposed within the tube 11, the guide- 34 being supplied in its upper end with a` chamber 35 and being equipped in its lower end with a reduced bore 36. vA lid 37 rests on the bosses 32 and is s aced thereby from upper end ofthe tube 11, the lid being held on the bosses by securing elements 38. The lid 37 has a down-turned marginal rim 39.
A valve 40, in the form of a disk, bears against the gasket 20, the valve embodying a stem 41 slidable in the bore 36 of the guide 34. An abutment collar 42 is threaded on the upper end of the stem 4l and is received v slidably in the chamber 35 of the guide 34. A compression spring 43 is located in the chamber 35, about part of. the stem 41, one end of the spring engaging the'abutment collar 42, and the other end ot the spring engaging the guide 34 at the lower end of the chamber 35. The function ont the spring 43 is to seat the valve 40 against the gasket 20. A valve opening means is provided, the same being in the form of a plunger 44 mounted to slide in the lid 37, the plunger being equipped at its lower end with a ltoot 45 bearing on the upper end of the valve stem 41,
theA plunger being supplied at its outer end with a button 46.
They cover 9 may be swung to open position on the' pivot element 25, to permit thieving through the tubular base 1. r1`he operator can press down the stem 41 and open the Valve 40, by means of the plunger 44, thereby to ease od. the pressure in the tank before thieving. rlFhe result is that when the cover 9 is swungto an open position, the operator is not spattered by a pudfof greasy vapor. Here note that when the valve 40 is opened, as and for the purpose specified, the apron 16 directs the gas and grease down Wardly, and does not permit is to blow side wise upon the garments otthe operator.
1n the event that pressure builds up too high in the tank, the cover 9 can open, either pivot-ally, or by vertical right-line movement, because the part 25 is received inthe vertically elongated slot 8. 'llhe pressure at which the cover 9 opens, responsive to ressure within the tank, may be governed by pouring more or less molten lead into the chamber 14, to form the weight 15.
When a partial vacuum is created within the tank, atmospheric pressure is restored in the tank, because the valve 40 will open downwardly, the spring 43 being compressed.I The edort of the spring 43, as a closin means for the valve 40, can be regulate by shifting the abutment collar 42 along the valve stem 41. l
From the foregoing it will be obvious that the device forming the subject matter of this application comprises, in one structure, a thief hatch, a vacuum release valve, and a pressure release valve.
The gaskets 19 and 20 are made of yieldable material, and, consequently, there is a tight closure at all times between the asketl 19 and the rim 5, and between the gas et 20 and the valve 40: something which is not attained when a metal-to-metal contact is provided, a metal-to-metal construction being subject to temperature changes, expan.
19 and 20 may be renewed. Generally stated,
the device forming the subject matter of this application, although embodying three oil tank attachments in one, costs but little more than one of those attachments, when the three of them are sold separately.
As shown at 100, the wall of the seat 17 slants away from one surface of the gaskets 19 andf20`, and the edges of rin y21 slant .away from the inner surfaces oft e gaskets 19 and 20. rlhis construction aii'ordsa space on each side of the gasket 19 and on each side of the gasket 20, to com ensate for the swelling of the gaskets 19 an 2O when they become saturated with oil.
What is` claimed is 1. In an attachment for oil tanks, a tubular base, a substantially horizontal, weighted cover cooperating with the base to close it, means for connecting the cover to the base for swinging movement into a :tully openposition at the control of an operator, and for substantially vertical right-line sliding movement to and trom closed position with' res ect to the base responsive to pressure wit in a tank, an inwardly opening vacuum release valve carried by the cover, and means for holding the valve yieldably in closed position.
2. lln an attachment for' oil tanks, a tu= bular base, a cover cooperating with the base to close it, means for connecting the cover movably to the base, a vacuum release valve carried by the cover, spring means tog closing the valve, and compressible gaskets carried by the cover, one gasket engaging the valve, and the other gasket engaging the e base.
3. lln an attachment for oil tanks, a tubular base, a cover hinged to the base, an inwardly opening` vacuum release valve mounted on the cover, gaskets cooperating with the base and with the valve, the cover having a recess wherein the gaskets are renoA ceived, an annular 4member in the. recess,
and holding the gaskets therein,v and securing` devices connecting the annular member with the cover. e.
4. In an attachment for tanks of the class described, a base; a cover including an outer body, a tube within the body and a bottom joining the tube with the body to form an annular weight-receiving chamber; a lid,
means for mounting the lid on the cover in.
spaced relation to the upper end ot the body and of the tube to aord a gas outlet of which the tube forms part, an inwardly opening valve cooperating with the base, spring-operated mechanism within' the tube and beneath the lid for holdin the valve a fully open osition at the will of an opyieldably closed to preventA ow of gas erator and or right-line movement to a. 10 through the tube,{a member mounted mov-"parti y open position responsive to gas ably in the lid and accessible from the outpressure Within the base and upon the valve.
5 side of the lid for engaging said mechanism In testimony that I claim the foregoing as to open the valve rat the will of an operator, my own,'I have hereto affixed my signature.
and a combined means for mogntmg the cover on the body for swinging movement to HARRY HAMMOND HOWELL.
US128247A 1926-08-09 1926-08-09 Combination pressure-vacuum valve and thief hatch Expired - Lifetime US1666935A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544651A (en) * 1945-09-17 1951-03-13 Chicago Bridge & Iron Co Method of storing volatile liquids
US2591562A (en) * 1950-05-18 1952-04-01 Ford Motor Co Vehicle radiator cap
US2601313A (en) * 1945-11-13 1952-06-24 Chicago Bridge & Iron Co Method of storing volatile liquids
US2614725A (en) * 1952-10-21 Pressure cooker and the like
DE1120375B (en) * 1959-12-07 1961-12-21 Leinemann Co Flammenfilter Respiratory system designed as a pressure relief valve
US3108610A (en) * 1961-09-21 1963-10-29 Halkey Roberts Corp Two-way relief valve
DE1158903B (en) * 1962-03-26 1963-12-05 Haller Gmbh Fahrzeugbau Safety lock, especially for the ventilation line of tank vehicles for the transport of flammable liquids
US4460013A (en) * 1981-12-17 1984-07-17 Universal Valve Co., Inc. Pressure-vacuum vent
US20120037243A1 (en) * 2009-04-17 2012-02-16 Taylor Innovations, L.L.C. Pressure Equalization Assembly for a Storage Vessel
US9739390B2 (en) 2015-11-12 2017-08-22 Bonanza Creek Energy Operating Company, LLC Valve pressure assembly and methods of operating the same
WO2018183030A1 (en) * 2017-03-27 2018-10-04 Emerson Process Management Regulator Technologies Tulsa, Llc Apparatus to protect sealing surfaces of thief hatches
WO2021127611A1 (en) * 2019-12-21 2021-06-24 Baker Hughes Oilfield Operations Llc Multiport thief hatch for storage tank

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614725A (en) * 1952-10-21 Pressure cooker and the like
US2544651A (en) * 1945-09-17 1951-03-13 Chicago Bridge & Iron Co Method of storing volatile liquids
US2601313A (en) * 1945-11-13 1952-06-24 Chicago Bridge & Iron Co Method of storing volatile liquids
US2591562A (en) * 1950-05-18 1952-04-01 Ford Motor Co Vehicle radiator cap
DE1120375B (en) * 1959-12-07 1961-12-21 Leinemann Co Flammenfilter Respiratory system designed as a pressure relief valve
US3108610A (en) * 1961-09-21 1963-10-29 Halkey Roberts Corp Two-way relief valve
DE1158903B (en) * 1962-03-26 1963-12-05 Haller Gmbh Fahrzeugbau Safety lock, especially for the ventilation line of tank vehicles for the transport of flammable liquids
US4460013A (en) * 1981-12-17 1984-07-17 Universal Valve Co., Inc. Pressure-vacuum vent
US20120037243A1 (en) * 2009-04-17 2012-02-16 Taylor Innovations, L.L.C. Pressure Equalization Assembly for a Storage Vessel
US9739390B2 (en) 2015-11-12 2017-08-22 Bonanza Creek Energy Operating Company, LLC Valve pressure assembly and methods of operating the same
WO2018183030A1 (en) * 2017-03-27 2018-10-04 Emerson Process Management Regulator Technologies Tulsa, Llc Apparatus to protect sealing surfaces of thief hatches
CN108657675A (en) * 2017-03-27 2018-10-16 艾默生过程管理调节技术塔尔萨有限公司 Device for the sealing surfaces for protecting sample tap
US10161521B2 (en) 2017-03-27 2018-12-25 Emerson Process Management Regulator Technologies Tulsa, Llc Apparatus to protect sealing surfaces of thief hatches
US10724638B2 (en) 2017-03-27 2020-07-28 Emerson Process Management Regulator Technologies Tulsa, Llc Apparatus to protect sealing surfaces of thief hatches
CN108657675B (en) * 2017-03-27 2022-06-17 艾默生过程管理调节技术塔尔萨有限公司 Device for protecting sealing surface of sampling port
WO2021127611A1 (en) * 2019-12-21 2021-06-24 Baker Hughes Oilfield Operations Llc Multiport thief hatch for storage tank

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