US3580429A — Paste dispenser with interchangeable bagged cartr…

Claim 1

Independent Claim 252 words

A dispenser for dispensing fluid material comprising: a base having an aperture formed therethrough; a cartridge means having opposite ends and a bore extending a distance therethrough intersecting one of said ends thereby to provide an open end thereof, said cartridge means being disposed on the base such that the open end thereof is adjacent said base and communicating with said aperture; a collapsible bag means containing the fluid material to be dispensed and having one end thereof open, said bag means being disposed in said cartridge means such that the open end portion thereof is adjacent to the open end portion of the cartridge means; support means formed as a concentric sleeve inserted within said bag means open end for supporting said bag means above the base as said fluid material is dispensed therefrom, said support means being generally cylindrical in shape and being disposed on said base to extend approximately one-half the length of the bag means thereabove, and said support means including a plurality of apertures extending through the sleeve walls to substantially equalize pressure as the cartridge means and collapsible bag means are disposed generally over said support means sleeve; means for rigidly supporting approximately one-half of said bag means which is adjacent the bag means open end such that it remains in predetermined concentric disposition relative to said cartridge means; and actuating means for creating pressure differential to dispense a quantity of said fluid material contained in the collapsible bag means through said aperture in the base.

Claim 2

Dependent Claim 252 words

A dispenser for dispensing fluid material comprising: a base having an aperture formed therethrough; a cartridge means having opposite ends and a bore extending a distance therethrough intersecting one of said ends thereby to provide an open end thereof, said cartridge means being disposed on the base such that the open end thereof is adjacent said base and communicating with said aperture; a collapsible bag means containing the fluid material to be dispensed and having one end thereof open, said bag means being disposed in said cartridge means such that the open end portion thereof is adjacent to the open end portion of the cartridge means; support means formed as a concentric sleeve inserted within said bag means open end for supporting said bag means above the base as said fluid material is dispensed therefrom, said support means being generally cylindrical in shape and being disposed on said base to extend approximately one-half the length of the bag means thereabove, and said support means including a plurality of apertures extending through the sleeve walls to substantially equalize pressure as the cartridge means and collapsible bag means are disposed generally over said support means sleeve; means for rigidly supporting approximately one-half of said bag means which is adjacent the bag means open end such that it remains in predetermined concentric disposition relative to said cartridge means; and actuating means for creating pressure differential to dispense a quantity of said fluid material contained in the collapsible bag means through said aperture in the base.

Claim 3

Dependent Claim 26 words

The dispenser of claim 1 which is further characterized to include: bonding means securing an outer circumferential portion of said bag means to said cartridge means.

Claim 4

Dependent Claim 44 words

The dispenser of claim 1 characterized further to include an outer sleeve means disposed on the base and provided to encompass a portion of the outer periphery of said cartridge means, thereby limiting lateral movement of said cartridge means with respect to said base.

Claim 5

Dependent Claim 97 words

The dispenser of claim 1 wherein the actuating means comprises: a plunger body having opposite ends and a chamber extending a distance therethrough and being open at one of said ends, said plunger body being disposed on the base such that the aperture in the base is in communication with said chamber; an outlet means secured to the plunger body in communication with said chamber; a plunger means disposed in said chamber and sized to slide reciprocally in a generally axial direction within said chamber, thereby to dispense the fluid within said chamber through said outlet means.

Claim 6

Dependent Claim 19 words

The dispenser of claim 4 wherein said plunger body chamber extends generally transversely to said aperture in said base.

Claim 7

Dependent Claim 30 words

The dispenser of claim 4 wherein the plunger means includes an O-ring disposed around the outer periphery thereof and sized to sealingly engage the walls of said plunger body chamber.

Claim 8

Dependent Claim 53 words

The dispenser of claim 4 which is further characterized to include a spring, having one end thereof in engagement with the closed end of the plunger body and the opposite end thereof in engagement with the plunger means to bias the plunger means generally axially toward the open end of the plunger body.

Claim 9

Dependent Claim 43 words

The dispenser of claim 4 wherein the plunger means is further characterized to include: cap means having an aperture extending axially therethrough; shaft means being reciprocally disposed in said cap means aperture and secured to the open end portion of the pLunger body.

Claim 10

Dependent Claim 108 words

The dispenser of claim 4 wherein the outlet means includes: a valve body having opposite ends and a bore extending therethrough and being secured at one end thereof to the plunger body, said valve body bore being in communication with said plunger body chamber, said valve body being provided with a seating surface in a portion of the valve body bore; a valve member disposed in said bore; and a spring disposed in said bore and having one end thereof in engagement with said valve member, said spring acting to bias the valve member into seating and sealing engagement with the seating surface in the valve body bore.

Claim 11

Dependent Claim 122 words

The dispenser of claim 4 wherein the outlet means includes: a valve body having a bore extending therethrough and being secured at one end to the plunger body with the opposite end being formed as a seating surface, said valve body bore being in communication with said plunger body chamber, cover plate means being movably disposed on one end of the valve body and seatingly and sealingly engaging the seating surface provided on said valve body seating surface; and a spring having one end attached to the cover plate and the opposite end attached adjacent to the opposite end of said valve body bore with said spring being biased to urge said cover plate against said seating surface in the valve body.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-05-24	1974-11-23	1975-05-25	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-05-24	1978-11-23	1979-05-25	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-05-24	1982-11-23	1983-05-25	$7700.00	Window Closed / Lapsed

Paste dispenser with interchangeable bagged cartridges

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