Method of making a valve apparatus
OwnerDonald J. Greenspaninventor
Life of this patent
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Abstract
A valve apparatus is integrally molded from an elastomeric material so as to form a valve seating portion including a valve opening, a valve member and connective strands extending from the valve seating portion to the valve member. The valve member is initially molded on one side of the valve opening, and a portion of the valve member is passed through the opening to the other side thereof. The connective strands are stretched while passing a portion of the valve member through the opening so as to create a bias on the valve member which tends to seat the valve member on the other side of the opening.
Claims14
A method of making a valve apparatus comprising a valve seating portion including a valve opening, a valve member and a connective means extending from said valve seating portion to said valve member, said method comprising the following steps:
- integrally molding an elastomeric material to form said valve seating portion, said valve member and said connective means with said valve member on one side of said valve opening;
- passing at least a portion of said valve member through said valve opening to the other side thereof;
- and
- stretching said connective means while passing said portion of said valve member through said opening so as to create a bias on said valve member which tends to seat said valve member on said other side of said opening.
Dependencies are inferred from the claim text.