Patent US4437591A successfully refreshed from Google Patents.
US4437591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for, in particular, pasty substances
Assignee: Colgate Palmolive Co
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Filing: 1981-01-29
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Granted: 1984-03-20
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Expires: 2001-01-29
Abstract
Abstract A dispenser, particularly for pasty products, including a tubular housing with a dispensing mouthpiece at one end and a piston displaceable within the housing toward the mouthpiece by means of a double-armed rocker lever located at the mouthpiece end having an operating handle on one arm and a draw means in the form of a rod connected to the other arm and coupled to the piston by means of a unidirectional-operating ratchet arrangement. The rocker lever may be provided with biased spring members to return the draw means to its rest position.
Inventors
- 👤 Alfred Von Schuckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:50
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/76; B65D83/763; A; A47; A47K; A47K5/00; A47K5/06; A47K5/12; A47K5/1201
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
170 words
A dispenser, particularly for pasty substances, which comprises a tubular housing with a dispensing mouthpiece at one end and a piston which is displaceable inside the housing towards the mouthpiece to force material out of the mouthpiece by means of an operating handle located at the mouthpiece end and a draw member linking the operating handle to the piston wherein the draw member is formed as a rod which is coupled with the piston via an unidirectionally-operating ratchet arrangement, the rod being coupled to one arm of a double-armed rocking lever mounted in the housing and whose other arm forms an operating pressure surface, and wherein the rocking lever is enclosed in the area of its shorter arm in a step whose hollow side walls are provided with bearing openings for snapping in of the rocking lever's journals and whose longer arm protrudes above the step in such a way that it overlaps a portion of surface of an upperfront wall of the housing on which a spring braces itself.
Claim 2
Dependent Claim
170 words
A dispenser, particularly for pasty substances, which comprises a tubular housing with a dispensing mouthpiece at one end and a piston which is displaceable inside the housing towards the mouthpiece to force material out of the mouthpiece by means of an operating handle located at the mouthpiece end and a draw member linking the operating handle to the piston wherein the draw member is formed as a rod which is coupled with the piston via an unidirectionally-operating ratchet arrangement, the rod being coupled to one arm of a double-armed rocking lever mounted in the housing and whose other arm forms an operating pressure surface, and wherein the rocking lever is enclosed in the area of its shorter arm in a step whose hollow side walls are provided with bearing openings for snapping in of the rocking lever's journals and whose longer arm protrudes above the step in such a way that it overlaps a portion of surface of an upperfront wall of the housing on which a spring braces itself.
Claim 3
Dependent Claim
21 words
The dispenser according to claim 1 wherein the rod and rocking lever are formed of the same material as one piece.
Claim 4
Dependent Claim
20 words
The dispenser according to claim 2 wherein the rocking lever is returned to its original rest position by spring biasing.
Claim 5
Dependent Claim
22 words
The dispenser according to claim 3 wherein the spring on the underside of rocking lever is materially uniformly formed into a tongue.
Claim 6
Dependent Claim
23 words
The dispenser according to claim 1 wherein the rod has a bending zone of reduced cross section in the area of its attachment.
Claim 7
Dependent Claim
20 words
The dispenser according to claim 1 wherein the end of the spring protrudes into the front wall of the housing.
Claim 8
Dependent Claim
42 words
The dispenser according to claim 1 wherein the rocking lever, snapped together with the housing is covered from above by a hold down pin, disposed coaxially to the rod, and mounted on the inside cover of a protective cap sealing the mouthpiece.
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 |