Dispensing
OwnerJerry E. Eschenburginventor
Life of this patent
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Abstract
Device for dispensing embraces a walled, hollow housing having an inside wall surface and having an opening on a first end; a piston that sealingly engages the inside wall surface, beginning at a position away from the first end; and an actuating connection to the piston internal the housing. A material for dispensing can be supplied to the inside of the hollow housing, and dispensed through the opening by actuation and movement of the piston.
Claims20
A device for dispensing, which comprises a walled, hollow housing having an inside wall surface and having an opening on a first end;
- a piston, which sealingly engages the inside wall surface along its path of traverse, beginning at a position away from the first end, and which is “pulled,” not “pushed,” through its course of travel;
- and an actuating connection to the piston internal the housing—such that a material for dispensing can be supplied to the inside of the hollow housing above the piston, and dispensed through the opening by actuation and movement of the piston.
A device for dispensing, which comprises a walled, hollow housing having an inside wall surface and having an opening on a first end;
- a piston, which sealingly engages the inside wall surface along its path of traverse, beginning at a position away from the first end, and which is “pulled,” not “pushed,” through its course of travel;
- and an actuating connection to the piston internal the housing—such that a material for dispensing can be supplied to the inside of the hollow housing and above the piston, and dispensed through the opening by actuation and movement of the piston, wherein:
- the walled, hollow housing has a top wall, side walls, and a bottom wall having a vacuum-releasing opening therein;
- the opening on a first end opens through the top wall;
- the actuating connection is made also to a distal end of a flexible contrivance;
- and
- actuation of the actuating connection is by plunger or gear.
A method for dispensing a material, which comprises:
- providing a device embracing a walled, hollow housing having an inside wall surface and having an opening on a first end;
- a piston, which sealingly engages the inside wall surface along its path of traverse, beginning at a position away from the first end, and which is “pulled,” not “pushed,” through its course of travel;
- and an actuating connection to the piston internal the housing;
- supplying the material to inside of the hollow housing and above said piston;
- and
- actuating the actuating connection such that the material is dispensed through the opening by actuation and movement of the piston.
Dependencies are inferred from the claim text.