US3891114A - Sealing cover with pressure compensation channel - Google Patents

Sealing cover with pressure compensation channel Download PDF

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Publication number
US3891114A
US3891114A US397093A US39709373A US3891114A US 3891114 A US3891114 A US 3891114A US 397093 A US397093 A US 397093A US 39709373 A US39709373 A US 39709373A US 3891114 A US3891114 A US 3891114A
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US
United States
Prior art keywords
projection
container
sealing cover
diaphragm
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
Application number
US397093A
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English (en)
Inventor
Theo Gerdes
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.)
Blau KG Fabrik fuer Kraftfahrzeugteile
Original Assignee
Blau KG Fabrik fuer Kraftfahrzeugteile
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 Blau KG Fabrik fuer Kraftfahrzeugteile filed Critical Blau KG Fabrik fuer Kraftfahrzeugteile
Application granted granted Critical
Publication of US3891114A publication Critical patent/US3891114A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/0406—Filler caps for fuel 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/33—Gasoline tank cap

Definitions

  • ABSTRACT A petrol tank cap has a tensional diaphragm and seatings set so as to relieve abnormal underand overpressures in the tank. To ensure that only a small quantity of liquid can escape with the gas, the cap includes a partition with a narrow V-shaped groove, the dimensions of which are such as to allow passage of gas, but to severely restrict escape of liquid.
  • the present invention concerns a pressure compensation channel formed in a partition in the circumferential edge of a sealing cover and, more particularly, in a channel extending transversely across a projecting centre dome of a partition member, in co-operation with a valve-like acting control diaphragm which is held in contact under tension against the circumferential edge of the centre dome.
  • a sealing cover for a container or pipe socket closure with automatically acting compensation of internal overand under-pressures comprising a partition clamped at the circumference of the cover, with ventilation holes and groove-like channels serving for excess gas pressure compensation, wherein a partition in the cover is provided with a groove-like gas pressure compensation channel having such an entry dimension and depth as to restrict the flow of liquid therethrough.
  • FIG. I shows a sealing cover in a central crosssection.
  • FIG. 2 shows a plan view of the centre dome of the partition of the cover.
  • FIG. 1 shows a conventional bayonet lock sealing cover, having an upper cover member 1 a contact finger grip rib I pressed out upwardly, and a rim or lip 1" drawn down to form an outer edge.
  • This rim 1" encloses a lower pot-shaped spring housing 2, inserted by its upper flanged edge 2' and uniformly compressed by the upper cover member 1.
  • Mounted in the spring housing 2 is a bayonet bridge member 3 with a compensation spring 4 supported against the base 2 of the potshaped housing, the bayonet pins 3' extending through cut-outs 2" in the pot-shaped wall of the spring housing 2.
  • a sealing washer 7 is located on the flanged edge 2' of the lower cover 2.
  • a groove-like channel 5" Transversely across the centre of the dome 5' and passing across the centre of the hole 6' of the control diaphragm 6 there is a groove-like channel 5" the liquid-repelling inlet width of which is small compared with the diameter 6' of the hole in the diaphragm, and extending upwardly to a distance which is a multiple of its inlet width.
  • the channel is formed in a projecting rib 5" and has a lightly restrictive action on liquid flow therethrough.
  • FIG. I also shows that the control diaphragm 6 is mounted to rise slightly from its outer clamping point in the edge of the cover A towards the centre as a sealing edge in a tensioned form relatively to the circumference of the dome 5' in such manner that it extends continuously towards its centre hole 6 at the most acute angle possible, relatively to the horizontal surface of the dome 5.
  • the centre hole 6 is so dimensioned that the remaining edge surface of the control diaphragm projects only slightly free from the sealing edge of the dome 5' as far as the edge 6' of the hole.
  • Gas pressure compensation is effected in the case of an internal underpressure by an automatic valve-like raising of the control diaphragm 6 inwardly from the sealing edge of the centre dome 5', so that air intake takes place automatically through channels 2" from below the edge I" of the cover and cut-outs 5" in the outer edge of the partition 5, thence inwardly by way of ventilation holes 5" in the partition between the edge of the cover and the centre dome 5'.
  • gas pressure relief is effected by way of the grooved channels 5" on both sides of the dome 5', as shown in FIG. 2, for this purpose.
  • External pressure compensation and ventilation are then effected automatically from under the edge I" of the cover in the reverse direction by way of cut-outs 5" in the circumference and grooves 2" in the externally drawn down flanged edge 2'.
  • a sealing cover for closing a container adapted to contain a mixture of liquids and gases, particularly fuel storage tanks or the like, a combination comprising a housing defining an enclosed space; wall means provided within said housing and subdividing said enclosed space into a first compartment adapted to communicate with the ambient atmosphere and a second compartment adapted to communicate with the container, said wall means being formed with a centrally located projection extending into said second compartment and with an outer portion having a plurality of apertures extending therethrough; a flexible pretensioned diaphragm provided within said housing and having an outer marginal portion overlying said outer portion of said wall means defining an annular space therewith which communicates with said apertures and an inner marginal portion overlying said centrally located projection and normally sealingly engaging the latter and bounding a center opening of said diaphragm; a groove-shaped channel formed in said projection and having an inlet communicating with said second compartment by means of said central opening in said diaphragm and dimensioned to allow entry of gas but to substantially restrict the entry of liquid into said channel
  • said channel having at least one outlet communicating with said annular space, whereby a force is exerted on said inner marginal portion of said diaphragm disengaging the latter from said projection when the pressure of the ambient atmosphere exceeds the pressure in said container so that the atmosphere may be admitted via said second compartment into the container, and an oppositely directed force is exerted on said inner marginal portion to urge the latter against said projection when the pressure in said container exceeds the pressure of the atmosphere so that the gaseous component of said mixture may enter said grooveshaped channel for discharge to the ambient atmosphere, whereby the pressure in said container may be automatically equalized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Measuring Fluid Pressure (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US397093A 1972-09-29 1973-09-13 Sealing cover with pressure compensation channel Expired - Lifetime US3891114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2248033A DE2248033C3 (de) 1972-09-29 1972-09-29 Verschlußdeckel

Publications (1)

Publication Number Publication Date
US3891114A true US3891114A (en) 1975-06-24

Family

ID=5857864

Family Applications (1)

Application Number Title Priority Date Filing Date
US397093A Expired - Lifetime US3891114A (en) 1972-09-29 1973-09-13 Sealing cover with pressure compensation channel

Country Status (8)

Country Link
US (1) US3891114A (sv)
BE (1) BE805257A (sv)
BR (1) BR7307489D0 (sv)
DE (1) DE2248033C3 (sv)
FR (1) FR2201224A1 (sv)
GB (1) GB1435807A (sv)
IT (1) IT993464B (sv)
SE (1) SE397573B (sv)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175671A (en) * 1978-05-01 1979-11-27 Caterpillar Tractor Co. Breather cap
US4358023A (en) * 1979-06-01 1982-11-09 Kabushiki Kaisha Tokai Rika Denki Seisakusho Capping assembly for use in fuel storage tank for vehicles
CN107504176A (zh) * 2017-09-20 2017-12-22 浙江美丽健乳业有限公司 储罐

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144110A (en) * 1983-07-27 1985-02-27 Metal Closures Ltd Bottle closure
US4987740A (en) * 1989-04-03 1991-01-29 General Motors Corporation Assured venting master cylinder diaphragm apparatus and method
FR3139993B1 (fr) 2022-09-28 2024-09-20 Lair Liquide Sa Pour Letude Et Lexploitation Des Procedes Georges Claude Ensemble de distribution d’oxygène de secours incluant une cartouche de stockage d’oxygène

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638580A (en) * 1899-09-18 1899-12-05 David Hennessey Can-top for fish or meats.
US1380045A (en) * 1919-11-20 1921-05-31 Dolezal John Non-leak cap for gasolene-tanks
US2117369A (en) * 1936-02-18 1938-05-17 Eaton Mfg Co Venting and closure device
US2190827A (en) * 1936-05-22 1940-02-20 Cornell Dubilier Corp Electrolytic condenser
US2440462A (en) * 1945-06-28 1948-04-27 Standard Oil Dev Co Pressure relief device
US3233727A (en) * 1963-09-13 1966-02-08 Karl H Wilson Multiple use packaging container
US3406862A (en) * 1968-01-15 1968-10-22 Container Corp Venting closure
US3696958A (en) * 1971-07-22 1972-10-10 Us Plywood Champ Papers Inc Gas venting liquid retaining closure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1933433C3 (de) * 1969-07-01 1980-02-21 Blau Kg Fabrik Fuer Kraftfahrzeugteile, 4018 Langenfeld Behälterdeckel mit selbsttätigem Druckausgleich mittels einer Druckausgleich-Membran

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638580A (en) * 1899-09-18 1899-12-05 David Hennessey Can-top for fish or meats.
US1380045A (en) * 1919-11-20 1921-05-31 Dolezal John Non-leak cap for gasolene-tanks
US2117369A (en) * 1936-02-18 1938-05-17 Eaton Mfg Co Venting and closure device
US2190827A (en) * 1936-05-22 1940-02-20 Cornell Dubilier Corp Electrolytic condenser
US2440462A (en) * 1945-06-28 1948-04-27 Standard Oil Dev Co Pressure relief device
US3233727A (en) * 1963-09-13 1966-02-08 Karl H Wilson Multiple use packaging container
US3406862A (en) * 1968-01-15 1968-10-22 Container Corp Venting closure
US3696958A (en) * 1971-07-22 1972-10-10 Us Plywood Champ Papers Inc Gas venting liquid retaining closure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175671A (en) * 1978-05-01 1979-11-27 Caterpillar Tractor Co. Breather cap
US4358023A (en) * 1979-06-01 1982-11-09 Kabushiki Kaisha Tokai Rika Denki Seisakusho Capping assembly for use in fuel storage tank for vehicles
CN107504176A (zh) * 2017-09-20 2017-12-22 浙江美丽健乳业有限公司 储罐

Also Published As

Publication number Publication date
BE805257A (fr) 1974-01-16
DE2248033A1 (de) 1974-04-04
GB1435807A (en) 1976-05-19
IT993464B (it) 1975-09-30
FR2201224A1 (sv) 1974-04-26
DE2248033C3 (de) 1981-11-05
BR7307489D0 (pt) 1974-08-15
SE397573B (sv) 1977-11-07
DE2248033B2 (de) 1981-03-19

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