Patent US3794222A successfully refreshed from Google Patents.
US3794222A
Expired / Lapsed
US
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Dosaging device for liquids and paste-like substances
Assignee: Schweizerische Industrie Gesellschaft
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Filing: 1972-03-30
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Granted: 1974-02-26
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Expires: 1992-03-30
Abstract
Abstract A dosaging device for liquids and paste-like substances is provided with an inlet valve mounted on a horizontal plate which also has attached thereto the upper end of a vertically disposed and vertically compressible bellows. The inlet valve introduces the liquid or paste-like substance into the upper end of the bellows the lower end of which is attached to a horizontal plate carrying a discharge valve and is vertically movable up and down with respect to the other or upper horizontal plate. In operation the inlet valve is opened and the discharge valve is closed to introduce the liquid or the paste-like substance into the bellows by said inlet valve when the lower horizontal plate is moved downwardly, and the inlet valve is closed and the discharge valve is opened to permit the discharge valve to introduce the liquid or the paste-like substance into a cup-like container when the lower horizontal plate is moved upwardly.
Inventors
- 👤 H Loewenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:15
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
220 words
Dosaging device for liquids and paste-like substances, comprising at least one structure provided with a feed valve, a vertically disposed and vertically compressible bellows having its upper end connected with said feed valve, a discharge valve having a vertical axis and a housing connected with the lower end of said bellows, said discharge valve having a valve body comprising an annular diaphragm and a tubular discharge member extending downwardly from said annular diaphragm, a support on which the upper end of said bellows is attached and a second support on which the lower end of said bellows is attached, means for moving said supports relatively to each other in a vertical direction up and down, means causing said feed valve to open and said discharge valve to close when the distance between said supports is increased, and causing said feed valve to close and said discharge valve to open when the distance between said supports is decreased, said annular diaphragm being provided on its upwardly directed face with an annular zone adapted to engage a stationary annular valve seat in said discharge valve so as to close said discharge valve, and said annular valve seat being formed by a sealing ring attached to a disc clamped within the housing of the discharge valve against the lower end of said bellows.
Claim 2
Dependent Claim
220 words
Dosaging device for liquids and paste-like substances, comprising at least one structure provided with a feed valve, a vertically disposed and vertically compressible bellows having its upper end connected with said feed valve, a discharge valve having a vertical axis and a housing connected with the lower end of said bellows, said discharge valve having a valve body comprising an annular diaphragm and a tubular discharge member extending downwardly from said annular diaphragm, a support on which the upper end of said bellows is attached and a second support on which the lower end of said bellows is attached, means for moving said supports relatively to each other in a vertical direction up and down, means causing said feed valve to open and said discharge valve to close when the distance between said supports is increased, and causing said feed valve to close and said discharge valve to open when the distance between said supports is decreased, said annular diaphragm being provided on its upwardly directed face with an annular zone adapted to engage a stationary annular valve seat in said discharge valve so as to close said discharge valve, and said annular valve seat being formed by a sealing ring attached to a disc clamped within the housing of the discharge valve against the lower end of said bellows.
Claim 3
Dependent Claim
219 words
Dosaging device for liquids and paste-like substances, comprising at least one structure provided with a feed valve, vertically disposed and vertically compressible bellows having its upper end connEcted with said feed valve, a discharge valve having a vertical axis and a housing connected with the lower end of said bellows, said discharge valve having a valve body comprising an annular diaphragm and a tubular discharge member extending downwardly from said annular diaphragm, a support on which the upper end of said bellows is attached and a second support on which the lower end of said bellows is attached, means for moving said supports relatively to each other in a vertical direction up and down, means causing said feed valve to open and said discharge valve to close when the distance between said supports is increased, and causing said feed valve to close and said discharge valve to open when the distance between said supports is decreased, said tubular discharge member of said discharge valve being arranged in a vertical bore of the housing of the discharge valve, and said bore being larger than said tubular discharge member and being in communication with a transverse bore in said housing for connection with a source of compressed air which is adapted to move said annular diaphragm in a valve closing position.
Claim 4
Dependent Claim
219 words
Dosaging device for liquids and paste-like substances, comprising at least one structure provided with a feed valve, vertically disposed and vertically compressible bellows having its upper end connEcted with said feed valve, a discharge valve having a vertical axis and a housing connected with the lower end of said bellows, said discharge valve having a valve body comprising an annular diaphragm and a tubular discharge member extending downwardly from said annular diaphragm, a support on which the upper end of said bellows is attached and a second support on which the lower end of said bellows is attached, means for moving said supports relatively to each other in a vertical direction up and down, means causing said feed valve to open and said discharge valve to close when the distance between said supports is increased, and causing said feed valve to close and said discharge valve to open when the distance between said supports is decreased, said tubular discharge member of said discharge valve being arranged in a vertical bore of the housing of the discharge valve, and said bore being larger than said tubular discharge member and being in communication with a transverse bore in said housing for connection with a source of compressed air which is adapted to move said annular diaphragm in a valve closing position.
Claim 5
Dependent Claim
39 words
Dosaging device according to claim 2, in which said annular diaphragm is biased in such a manner that it is in a valve closing position when the face of it directed toward the bellows is devoid of any load.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |