Patent US6189097B1 successfully refreshed from Google Patents.
US3558059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically closing valve for pressure vessels containing pastes of liquids
Assignee: Individual
•
Filing: 1968-12-23
•
Granted: 1971-01-26
•
Expires: 1988-12-23
Abstract
Abstract The invention relates to an automatically closing valve for pressure vessels containing pastes or liquids, which valve consists of a valve seat which is constructed on a nozzle consisting of flexible material, and by a rigidly mounted valve piston consisting of inflexible material and extending through the nozzle, together with a valve disc cooperating with the valve seat, the nozzle and the piston being so disposed that the valve seat and the valve disc are pressed against one another in the resting position owing to the flexibility of the nozzle.
Inventors
- 👤 Artur Pfaff
- 👤 Richard Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:04
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/164; F; F16; F16K; F16K21/00; F16K21/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
258 words
A dispensing apparatus for pastelike material comprising: a. a pressure vessel for containing pressurized pastelike material; b. a rigid valve stem mounted at a first end thereof on said pressure vessel and extending outwardly therefrom; c. a valve formed at a second end of said valve stem; d. aperture means defined by an exterior surface portion of said vessel generally adjacent said valve stem for the passage of pastelike material from the interior of said vessel to a point remote therefrom; e. a flexible resilient nozzle disposed in fluidtight engagement at a first end thereof with an exterior portion of said vessel; f. said nozzle being arranged to surround said surface portion of said vessel defining said aperture means and also to surround said valvE stem; g. said flexible resilient nozzle being formed with a bellows portion adjacent said first end thereof and a valve seat at a second end thereof for receiving said valve; h. said flexible resilient nozzle being held in compression between said valve and said surface portion of said vessel defining said aperture means; and i. whereby said dispensing apparatus may be actuated by an operator moving said second end of said flexible resilient nozzle in a direction away from said valve and whereby said valve seat of said flexible resilient nozzle is restored to a position in engagement with said valve in response to the pressure of said pressurized pastelike material urging against an inner surface of said bellows portion of said nozzle when the operator releases said second end of said nozzle.
Claim 2
Dependent Claim
258 words
A dispensing apparatus for pastelike material comprising: a. a pressure vessel for containing pressurized pastelike material; b. a rigid valve stem mounted at a first end thereof on said pressure vessel and extending outwardly therefrom; c. a valve formed at a second end of said valve stem; d. aperture means defined by an exterior surface portion of said vessel generally adjacent said valve stem for the passage of pastelike material from the interior of said vessel to a point remote therefrom; e. a flexible resilient nozzle disposed in fluidtight engagement at a first end thereof with an exterior portion of said vessel; f. said nozzle being arranged to surround said surface portion of said vessel defining said aperture means and also to surround said valvE stem; g. said flexible resilient nozzle being formed with a bellows portion adjacent said first end thereof and a valve seat at a second end thereof for receiving said valve; h. said flexible resilient nozzle being held in compression between said valve and said surface portion of said vessel defining said aperture means; and i. whereby said dispensing apparatus may be actuated by an operator moving said second end of said flexible resilient nozzle in a direction away from said valve and whereby said valve seat of said flexible resilient nozzle is restored to a position in engagement with said valve in response to the pressure of said pressurized pastelike material urging against an inner surface of said bellows portion of said nozzle when the operator releases said second end of said nozzle.
Claim 3
Dependent Claim
132 words
An apparatus according to claim 1 wherein: a. a plate member provides said exterior surface portion of said vessel defining said aperture means; b. said fluidtight engagement of said first end of said resilient flexible nozzle with said vessel comprises: a groove formed on the exterior surface of said pressure vessel to surround said surface portion of said vessel defining said aperture means; and a rib formed to extend axially from said first end of said nozzle and corresponding in size and shape with said groove for mating engagement therein; c. whereby said resilient flexible nozzle is operable to direct a jet of paste through said aperture means, along the outer surface of said valve stem and over said valve in response to the movement of said nozzle away from said valve.
Claim 4
Dependent Claim
23 words
An apparatus according to claim 2, wherein said valve comprises a generally frustoconical shape and said plate member comprises a generally planar surface.
Claim 5
Dependent Claim
68 words
An apparatus according to claim 2, wherein said pressurized vessel generally comprises a cylindrical container: a. said valve stem member being disposed generally centrally of said plate member and extending axially outwardly from said cylindrical container; b. said aperture means comprising a plurality of holes disposed about said first end of said valve stem member; and c. said groove comprising an annular recess formed in said plate member.
Claim 6
Dependent Claim
34 words
An apparatus according to claim 2, wherein said enlarged bellows portion of said flexible resilient nozzle comprises a generally semispherical portion extending toward said first end of said nozzle and terminating in said rib.
Claim 7
Dependent Claim
113 words
An apparatus according to claim 2, wherein said flexible resilient nozzle is formed with an external shoulder disposed about said second end thereof the addition of: a. an outer collar member having an axial passage formed therein with an internal shoulder corresponding in size and shape with said external shoulder of said sleeve member for mating engagement therewith; said collar member being formed with outwardly projecting flange means; b. whereby said collar member fits over said nozzle member with said internal shoulder engaging on said external shoulder; and c. whereby an operator may actuate said pastelike material dispensing apparatus by moving said flange means of said collar member axially away from said valve.
Claim 8
Dependent Claim
23 words
An apparatus according to claim 2, wherein said bellows is of a greater flexibility than the remaining portion of said flexible resilient nozzle.
References Cited (Backward Citations)
GB714669A
Cited
US2746797A
Cited
US2785016A
Cited
USRE25807E
Cited
FR1250569A
Cited
US3195787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |