US3666137A - Screw-on closure cap - Google Patents

Screw-on closure cap Download PDF

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Publication number
US3666137A
US3666137A US97194A US3666137DA US3666137A US 3666137 A US3666137 A US 3666137A US 97194 A US97194 A US 97194A US 3666137D A US3666137D A US 3666137DA US 3666137 A US3666137 A US 3666137A
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US
United States
Prior art keywords
cap part
cap
closure
screw
resiliently
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
US97194A
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English (en)
Inventor
Werner Blau
Theo Gerdes
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3666137A publication Critical patent/US3666137A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/16—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers with handles or other special means facilitating manual actuation

Definitions

  • ABSTRACT A screwon closure cap for closing the filling opening of a container or a tubular spout, the cap comprising relatively rotatable upper and threaded lower cap parts assembled together coaxially and having a resilient drive connection between them capable of transmitting a predetermined maximum torque between the upper and lower cap parts in the closing direction.
  • the resilient drive connection comprises a bowed leaf spring whose arch is engaged in the interior of a pressedup hand grip portion of the upper cap part, and whose two out-tumed ends are resiliently engaged ratchetwise in depressions formed in the upper peripheral portion of the lower cap member. When limiting torque is reached the ends of the spring ride resiliently out of the recesses to allow the upper cap part to turn relatively to the lower cap part without further tightening the closure cap on the neck of the container or spout.
  • the present invention relates to a closure cap which is adapted to be screwed on to the neck of a container or a tubular spout and to be tightened against a mouth aperture with the interposition of a seal.
  • a closure can be tightened only to a predetermined mutual thread-tightness pressure since forces originating from the reaction from such pressure and operative at the tightened lower threaded cap part cause the projections engaging resiliently from above in the form of spring lugs, cams or the like on the part providing the connection to the upper cap part to be disengaged, since their spring tension is so predetermined that on the attainment of a predetermined opposing force from the tightened threaded cap part they disengage and the upper cap part can now only rotate freely since the internally interposed connecting members can now only slip over the lower cap part in the tightened state without providing a coupling therewith.
  • Said connecting members are also so constructed that when the upper cap part is turned in the reverse direction for opening purposes they have the opposite effect and immediately restore the connection to the threaded cap part, for example by means of projecting members of such design directed in opposition to the direction of rotation for opening the cap so that they engage in recesses in the lower threaded cap part so that the latter is automatically entrained and turned back out of its closure position.
  • a part engaging in the form of a bowed spring member in the upper rotary cap part and having ends which on both sides are bent away outwardly against the lower threaded cap part is provided between the two cap parts and engages resiliently in recesses at the periphery of the lower threaded cap part to provide a mutually resiliently flexible connection.
  • FIG. 1 is a central section through the closure according to the invention.
  • FIG. 2 is a partial section on the line II II in FIG. 1.
  • the Figures show an upper cap part 1 having a pressed-out hand grip part 1 extending transversely over its outer surface
  • a lower threaded cap part 2 is inserted within the upper cap part so as to be freely movable and is retained by the rim part 1".
  • a bowed member 3 which engages in the form of a bridge between the two parts 1 and 2 is used as a connecting member and penetrates into the cavity of the grip part 1' and is adaptedto the sha e thereof and its ends extend downwards on both sides 3' an engage resiliently m depressions 2" provided at the periphery 2' of the lower cap part 2.
  • this bowed member connecting part 3/3 in engagement with respect to the lower threaded cap part 2/2 causes the closure to be tightened as a unit afier the style of a screwthread on a container neck or spout (not shown) with the interposition of a washer beneath the flange edge 2 at the threaded cap part 2.
  • a predetermined cap torque or thread-tightness is achieved depending upon the tension selected for the arm parts 3' engaging at 2"
  • the ends of the arm parts 3' will disengage and pass over the recesses 2" in the lower threaded cap part 2 so that the connection between the two cap parts 1 and 2 is broken and the closure cannot be tightened any more.
  • the top cap part can now only rotate freely and cannot drive the lower cap part.
  • the ends 3 drawn down on either side may be provided with spring lugs 4 which are bent away laterally so as to project and which engage in the recesses 2" in the edge flange 2' of the lower threaded cap part 2.
  • the spring lugs 4 may also advantageously have tongue parts 4 bent up in alignment with the direction of closing the closure so that disengagement from the recesses 2" is possible with less resistance.
  • the other side of the spring lugs 4 engages in the recesses 2 once again immediately in the opposite way, as shown as 4 (FIG. 2), so that the lower threaded cap part 2 is entrained for opening purposes.
  • a screw-on closure cap comprising an upper cap part and a separate lower threaded cap part between which rotary movement is transmitted by means of resiliently engaging projections providing a limited-torque-transmitting connection between the said upper cap part and lower threaded cap part, the said lower cap part being unitarily mounted with the upper cap part so as to be rotatable therein, said projections auto matically disengaging when a predetermined cap torque or thread-tightness is achieved, said projections comprising the two ends of a bowed member whose intermediate portion is engaged in the upper rotary cap part, said two ends being bent away outwardly and being engaged resiliently in recesses at the periphery of the lower threaded cap part to provide a mutually resiliently flexible ratchet connection capable of transmitting tightening torque up to a limited value, said projections riding out of said recesses under the influence of tightening torque in excess of said limiting value.
  • a screw-on closure cap in which said bowed member fits in a hand grip part which is pressed out of the rotary upper cap part and extends transversely thereover, said two ends of the bowed member which are bent down on both sides engaging with the lower threaded cap part via spring lugs which are bent out laterally so as to project from the bowed member.
  • a screw-on closure cap in which the laterally projecting spring lugs of the bowed member have tongue parts which are situated in alignment in the direction of closing the closure and which are bent upwards on one side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Closures For Containers (AREA)
US97194A 1969-12-11 1970-12-11 Screw-on closure cap Expired - Lifetime US3666137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1962187A DE1962187C3 (de) 1969-12-11 1969-12-11 Aufschraubbarer Verschlußdeckel

Publications (1)

Publication Number Publication Date
US3666137A true US3666137A (en) 1972-05-30

Family

ID=5753597

Family Applications (1)

Application Number Title Priority Date Filing Date
US97194A Expired - Lifetime US3666137A (en) 1969-12-11 1970-12-11 Screw-on closure cap

Country Status (3)

Country Link
US (1) US3666137A (cs)
DE (1) DE1962187C3 (cs)
GB (1) GB1335035A (cs)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715075A (en) * 1970-06-22 1973-02-06 T Gerdes Two-part screw closure cover
US3815776A (en) * 1972-06-26 1974-06-11 Mccord Corp Gas cap assembly
DE2357789A1 (de) * 1972-11-20 1974-06-12 Purolator Filter Gmbh Drehmoment-begrenzungsvorrichtung
USB516032I5 (cs) * 1974-06-05 1976-01-27
US4809869A (en) * 1986-07-11 1989-03-07 Itw, Ltd. Closure assemblies
US6202879B1 (en) * 1998-04-13 2001-03-20 Tesma International Inc. Fuel cap assembly
US20060124644A1 (en) * 2004-12-13 2006-06-15 James Dehn Ratcheted fuel cap

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613012A (en) * 1951-07-02 1952-10-07 Marvel E Taylor Safety sealing device for refillable containers
US3023924A (en) * 1955-03-02 1962-03-06 Bendix Corp Filler cap for master cylinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613012A (en) * 1951-07-02 1952-10-07 Marvel E Taylor Safety sealing device for refillable containers
US3023924A (en) * 1955-03-02 1962-03-06 Bendix Corp Filler cap for master cylinder

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715075A (en) * 1970-06-22 1973-02-06 T Gerdes Two-part screw closure cover
US3815776A (en) * 1972-06-26 1974-06-11 Mccord Corp Gas cap assembly
DE2357789A1 (de) * 1972-11-20 1974-06-12 Purolator Filter Gmbh Drehmoment-begrenzungsvorrichtung
USB516032I5 (cs) * 1974-06-05 1976-01-27
US3986634A (en) * 1974-06-05 1976-10-19 General Motors Corporation Torque limiter mechanism
US4809869A (en) * 1986-07-11 1989-03-07 Itw, Ltd. Closure assemblies
US6202879B1 (en) * 1998-04-13 2001-03-20 Tesma International Inc. Fuel cap assembly
US20060124644A1 (en) * 2004-12-13 2006-06-15 James Dehn Ratcheted fuel cap

Also Published As

Publication number Publication date
GB1335035A (en) 1973-10-24
DE1962187A1 (de) 1971-06-16
DE1962187B2 (cs) 1979-03-15
DE1962187C3 (de) 1979-12-20

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