Patent US3838796A successfully refreshed from Google Patents.
US3838796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid and paste dispenser
Assignee: Individual
•
Filing: 1973-08-13
•
Granted: 1974-10-01
•
Expires: 1993-08-13
Abstract
Abstract A bag-type fluid and paste dispenser in the form of a rigid elongate housing having a dispensing valve at one end and having a collapsible bag therein containing the fluid or paste material to be dispensed, and in which the fluid or paste material within the bag is pressurized by a resilient means and means within the container releasably immobilizing resilient means in its tensioned state, and a cartridge for filling or refilling the container.
Inventors
- 👤 M Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:41
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/771; B65D83/7714
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
174 words
In a bag-type fluid and paste dispenser comprising a rigid housing open at one end and closed at the other, a collapsible sealed bag dimensioned to be received within the housing and which contains the fluid or paste material to be dispensed, a closure releasably secured over the open end of the housing and having a dispensing valve, a hollow tubular member extending from the dispensing valve into the interior of the housing for piercing the bag when in position of use to communicate the fluid or paste with the dispensing valve, means for pressurizing the fluid and paste material within the bag comprising a resilient member secured at its outer portions to the upper end of the housing with an intermediate portion thereof extendable between normally released position at one end of the housing to tensioned position at the opposite end of the housing, a rigid disc plate secured to said intermediate portion for movement therewith between released position and tensioned position, and a releasable latch securing the disc plate in tensioned position.
Claim 2
Dependent Claim
174 words
In a bag-type fluid and paste dispenser comprising a rigid housing open at one end and closed at the other, a collapsible sealed bag dimensioned to be received within the housing and which contains the fluid or paste material to be dispensed, a closure releasably secured over the open end of the housing and having a dispensing valve, a hollow tubular member extending from the dispensing valve into the interior of the housing for piercing the bag when in position of use to communicate the fluid or paste with the dispensing valve, means for pressurizing the fluid and paste material within the bag comprising a resilient member secured at its outer portions to the upper end of the housing with an intermediate portion thereof extendable between normally released position at one end of the housing to tensioned position at the opposite end of the housing, a rigid disc plate secured to said intermediate portion for movement therewith between released position and tensioned position, and a releasable latch securing the disc plate in tensioned position.
Claim 3
Dependent Claim
15 words
A dispenser as claimed in claim 1 in which the housing is of cylindrical shape.
Claim 4
Dependent Claim
34 words
A dispenser as claimed in claim 1 in which the bag is formed of a plastic or rubber-like material which is impervious to the fluid or vapors of the fluid or paste contained therein.
Claim 5
Dependent Claim
36 words
A dispenser as claimed in claim 1 in which the closure is releasably secured to the upper end of the housing by means of screw threads provided in the adjacent walls of the closure and housing.
Claim 6
Dependent Claim
28 words
A dispenser as claimed in claim 1 in which the resilient means comprises a stretchable diaphragm secured at its periphery to the upper end portion of the housing.
Claim 7
Dependent Claim
39 words
A dispenser as claimed in claim 1 in which the resilient means comprises a coil spring, having a flanged portion at its outer periphery and means for securing the flanged portion to the upper end portion of the housing.
Claim 8
Dependent Claim
41 words
A dispenser as claImed in claim 1 in which the releasable latch comprises a member fixed to the bottom side of the disc plate and an engaging member extending inwardly from the bottom wall and operable from outside the bottom wall.
Claim 9
Dependent Claim
21 words
The dispenser of claim 1 wherein said bag is formed of a material which is impervious to the fluid or paste.
Claim 10
Dependent Claim
20 words
A filler as claimed in claim 1 in which the bag is formed of a flexible plastic or rubber-like material.
Claim 11
Dependent Claim
17 words
A filler as claimed in claim 1 in which the bag is formed of foldable side walls.
Claim 12
Dependent Claim
130 words
For use in loading a bag-type dispenser in the form of a housing which can be opened at one end and closed at the other, and in which a resilient tensioning member is provided adjacent the open end for displacement between normally relaxed position and extended tensioned position, a cartridge comprising: a rigid container open at one end and dimensioned to telescope into the housing through its open end, said open end of the rigid container in operative engagement with the resilient tensioning means to effect displacement to an extended position responsive to movement of the rigid container into the housing; and a collapsible bag filled with the fluid or paste disposed within the rigid container for loading said dispenser as the rigid container effects displacement of the tensioning means.
Claim 13
Dependent Claim
130 words
For use in loading a bag-type dispenser in the form of a housing which can be opened at one end and closed at the other, and in which a resilient tensioning member is provided adjacent the open end for displacement between normally relaxed position and extended tensioned position, a cartridge comprising: a rigid container open at one end and dimensioned to telescope into the housing through its open end, said open end of the rigid container in operative engagement with the resilient tensioning means to effect displacement to an extended position responsive to movement of the rigid container into the housing; and a collapsible bag filled with the fluid or paste disposed within the rigid container for loading said dispenser as the rigid container effects displacement of the tensioning means.
Claim 14
Dependent Claim
71 words
A cartridge as claimed in claim 11 in which the rigid container is dimensioned to have a length greater than the length of the housing so that a portion of the container will project from the housing when the resilient member is displaced to extended position and the container can be removed from the housing to leave the bag within the housing in the area between the extended and relaxed position.
Claim 15
Dependent Claim
63 words
A cartridge as claimed in claim 11 in which a disc plate for exerting pressure on said bag is secured to the resilient tensioning member for movement therewith and the open end of the rigid container has a crosswise dimension less than the crosswise dimension of the disc plate thereby to engage the disc plate for extending the resilient member during telescoping movement.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |