US4437584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothpaste dispenser
Assignee: Colgate Palmolive Co
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Filing: 1981-08-28
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Granted: 1984-03-20
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Expires: 2001-08-28
Abstract
Abstract A toothpaste dispenser comprising a container having a neck through which a tube connected to a plunger extends. A uni-directional movable plate is disposed in the container and a ratchet assembly extends through the plate for moving the plate to extrude product through the tube. A spring returns the plunger to its initial position.
Inventors
- 👤 Stephen T. Connors
- 👤 Kenneth Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:07
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D83/00; B65D83/76; B65D83/763
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
A dispenser for delivering two products comprising a container having a neck and a bottom closure, a tube movably extending through said neck into the container and having a plunger and outlet outwardly of the container and a pipe within said tube and extending below said tube, a first uni-directional movable semi-flexible plate disposed in said container, first ratchet means connected to said tube and extending through said first plate for moving said first plate to displace a first product in said container towards said tube, a second uni-directional movable semi-flexible plate in said container, and second ratchet means on said pipe extending through said second plate for moving said second plate to displace a second product into said pipe.
Claim 2
Dependent Claim
120 words
A dispenser for delivering two products comprising a container having a neck and a bottom closure, a tube movably extending through said neck into the container and having a plunger and outlet outwardly of the container and a pipe within said tube and extending below said tube, a first uni-directional movable semi-flexible plate disposed in said container, first ratchet means connected to said tube and extending through said first plate for moving said first plate to displace a first product in said container towards said tube, a second uni-directional movable semi-flexible plate in said container, and second ratchet means on said pipe extending through said second plate for moving said second plate to displace a second product into said pipe.
Claim 3
Dependent Claim
19 words
A dispenser according to claim 1, wherein said second plate is spaced from and below said first recited plate.
Claim 4
Dependent Claim
17 words
A dispenser according to claim 1, wherein said first recited ratchet means comprises serrations on said tube.
Claim 5
Dependent Claim
16 words
A dispenser according to claim 3, wherein said second ratchet means includes serrations on said pipe.
Claim 6
Dependent Claim
19 words
A dispenser according to claim 4, wherein said second plate is spaced from and below said first recited plate.
Claim 7
Dependent Claim
32 words
A dispenser according to claim 5, including spring means about said tube for returning said plunger to an initial position while said first and second plates are retained in a lowered position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-20 | 1987-09-19 | 1988-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-20 | 1991-09-19 | 1992-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-20 | 1995-09-19 | 1996-03-20 | $7700.00 | Window Closed / Lapsed |