Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1978-02-27
1979-01-09
Price, William
Receptacles
Outlet or junction box type
Sectional receptacle
222508, 222517, 222518, A47G 1922
Patent
active
041334469
ABSTRACT:
A cover for a drinking vessel of heat-insulating material comprising a cylindrical wall with elements at its lower end which cooperate with complemental elements at the upper end of a drinking vessel to provide a detachable bayonet joint. Integral with the upper end portion of the cylindrical wall is an inclined flat wall formed with a drinking opening and a relief vent in diametric alignment. Depending from the inclined wall substantially midway between said opening and vent are a pair of spaced lugs each having a journal recess opening onto its lower edge. A lever has a pair of studs extending from its opposite side faces and received in said recesses with snap fits. Upstanding from one end of the lever is an arm which projects through the drinking opening and carries a valve member on its upper end which is of greater extent than said drinking opening and normally engages the upper surface of the inclined wall about the drinking opening. A pushbutton upstands from the other end of the lever and through said relief vent. A gasket is mounted on the pushbutton and engages the lower face of the inclined wall about the relief vent to provide a seal therefor. A U-shaped leaf spring is positioned between the lugs and is interposed between the inclined wall and lever and biases the valve member and gasket into sealing engagement with said inclined wall.
REFERENCES:
patent: 302483 (1884-07-01), Haslage
patent: 322569 (1885-07-01), Tafts
patent: 548236 (1895-10-01), Stevenson
patent: 2447870 (1948-08-01), Polcyn
patent: 3964631 (1976-06-01), Albert
patent: 3967748 (1976-07-01), Albert
patent: 3972443 (1976-08-01), Albert
Price William
Shoap Allan N.
Thermo-Seal, Inc.
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