Primer cap
OwnerCharles Hermaninventor
Life of this patent
Estimating the term…
Abstract
A gas priming device combining a resilient bellows in combination with an open cap having an inwardly directed annular flange. The lowermost repeating bellows unit is enclosed and encircled by the inwardly directed annular flange of the cap, so that when the cap is secured to a gas supply conduit, the lowermost repeating bellows unit is squeezed between the upper end surface of the conduit and the inwardly directed annular flange, to form a sealing gasket for the priming device. Priming is effected by covering the hole disposed on the upper end of the bellows and compressing the bellows in the direction of fuel feed.
Claims7
A priming gas cap to be secured to a gas supply conduit having securement means and an end surface, said cap comprising a resilient bellows having at least two repeating bellows units, and two opposite ends, said bellows further comprising a hole at each said opposite end;
- and a cap member, said cap member being formed from an essentially cylindrical element having fastening means designed to cooperate with gas cap fastening means of a gas supply conduit, and an inwardly directed annular flange formed integrally from said essentially cylindrical portion and extending radially inwardly from said cylindrical portion to define a circular opening in said cap member, the lowermost repeating bellows unit of said bellows being encircled and enclosed by said inwardly directed annular flange of said cap member, said lowermost repeating bellows unit having a minimum diameter less than the diameter of said circular opening and a maximum diameter greater than the diameter of said circular opening and underlying said flange.
Dependencies are inferred from the claim text.