US3901408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine including means for independently adjusting the dose of two reactive, flowable components into a mixing chamber
Assignee: Bayer AG
•
Filing: 1974-09-09
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Granted: 1975-08-26
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Expires: 1994-09-09
Abstract
Abstract A machine comprising a first piston-cylinder arrangement which is connected to a second piston-cylinder arrangement. The second arrangement being provided with a differential piston, is used for dosing flowable components into a mixing chamber.
Inventors
- 👤 Heinrich Boden
- 👤 Ulrich Knipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:47
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/603; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7174; B01F35/80; B01F35/88; B01F35/882; B01F35/8822; G; G01; G01F; G01F11/00; G01F11/02; G01F11/021; G01F11/029
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
A machine for dosing two components through conduits into a mixing chamber, coMprising a dosing arrangement for each component, each arrangement including a dosing piston with an associated dosing cylinder provided with inlets and outlets; a housing with guides for a hydraulic piston-cylinderarrangement, which at its one end, carries a first dosing piston, which corresponds with the first dosing cylinder; a drive mechanism for the hydraulic piston-cylinder-arrangement; a second dosing piston which corresponds with the second dosing cylinder, either said dosing piston or said dosing cylinder is rigidly connected to said hydraulic piston-cylinder-arrangement whereas the other is connected to said housing; at least one differential dosing piston corresponding with said second dosing arrangement and projecting into the dosing chamber of said second dosing cylinder, said differential dosing piston being independently adjustable in its depth of projection to independently adjust the volume of said second dosing cylinder without changing the volume of said first dosing cylinder.
Claim 2
Dependent Claim
155 words
A machine for dosing two components through conduits into a mixing chamber, coMprising a dosing arrangement for each component, each arrangement including a dosing piston with an associated dosing cylinder provided with inlets and outlets; a housing with guides for a hydraulic piston-cylinderarrangement, which at its one end, carries a first dosing piston, which corresponds with the first dosing cylinder; a drive mechanism for the hydraulic piston-cylinder-arrangement; a second dosing piston which corresponds with the second dosing cylinder, either said dosing piston or said dosing cylinder is rigidly connected to said hydraulic piston-cylinder-arrangement whereas the other is connected to said housing; at least one differential dosing piston corresponding with said second dosing arrangement and projecting into the dosing chamber of said second dosing cylinder, said differential dosing piston being independently adjustable in its depth of projection to independently adjust the volume of said second dosing cylinder without changing the volume of said first dosing cylinder.
Claim 3
Dependent Claim
173 words
A machine according to claim 1, comprising a dosing piston for each component with associated dosing cylinders provided with inlets and outlets; a housing with guides for a piston rod which, at its one end, carries a first dosing piston which corresponds with the first dosing cylinder having an inlet and outlet arranged at the housing; a drive mechanism for the piston rod; a second dosing cylinder with an inlet and outlet which is rigidly connected to the other end of the piston rod through an intermediate member and which corresponds with the second dosing piston mounted rigidly and coaxially with the second dosing cylinder in the housing; at least one differential dosing piston which, at one end, is displaceably mounted in the end face of the second dosing cylinder and which, at its end projecting into the second dosing cylinder, comprises a stop whilst its other end is guided in an extension of the housing; and an adjustable stroke-limiting element for the differential dosing piston arranged in the extension of the housing.
Claim 4
Dependent Claim
158 words
A machine according to claim 1, comprising a dosing piston for each component with associated dosing cylinders provided with inlets and outlets; a housing surrounding a hydraulic piston-cylinder-arrangement, the hydraulic cylinder being movable guided in said housing, said hydraulic piston being mounted rigidly and coaxially with said housing; a drive mechanism for the hydraulic piston-cylinder-arrangement the hydraulic cylinder carrying at its one end a first dosing piston which corresponds with a first dosing cylinder having an inlet and outlet arranged on the housing; a second dosing cylinder having an inlet and outlet which is rigidly connected to the housing; a second dosing piston mounted rigidly and coaxilly with said second dosing cylinder and which is rigidly connected to the other end of the hydraulic cylinder through an intermediate member; at least one adjustable differential dosing piston projecting into a bore of said second dosing piston, said bore being part of the dosing chamber of the second dosing cylinder.
Claim 5
Dependent Claim
27 words
A machine as claimed in claim 1, comprising a switching mechanism allowing dosing into the mixing chamber or to the storage vessels corresponding return conduits being provided.
Claim 6
Dependent Claim
17 words
A machine as claimed in claim 1, wherein adjustable stroke-limiting elements are associated with the drive mechanism.
Claim 7
Dependent Claim
22 words
A machine as claimed in claim 2, wherein an adjusting drive is associated with the stroke-limiting element of the differential dosing piston.
Claim 8
Dependent Claim
21 words
A machine as claimed in claim 6, wherein the adjusting drive is actuated by the piston rod through adjustable switching contacts.
Claim 9
Dependent Claim
21 words
A machine as claimed in claim 6, wherein the adjusting drive is actuated by the drive mechanism through a time-delay relay.
References Cited (Backward Citations)
US3174649A
Cited
US3640433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |