US4744543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-magnetically actuated valve arrangement
Assignee: Maquet Critical Care AB
•
Filing: 1986-08-15
•
Granted: 1988-05-17
•
Expires: 2006-08-15
Abstract
Abstract Electromagnetically actuated valve arrangement for flowing media comprising a sleeve in which an intake and a discharge valve each comprising a valve seat are applied. A permanent magnet arranged axially displaceable is provided between the valves, the flow of the medium from the intake to the discharge valve being controllable via this permanent magnet. In order for the valve arrangement to be simple and thus inexpensive in manufacture and to also reliably operate at high frequencies of the permanent magnet, it is proposed in accord with the invention that the permanent magnet comprises continuations in its outer region and at both sides, these continuations proceeding in the moving direction of the permanent magnet and extending beyond or over the valve seats.
Inventors
- 👤 Gunnar Renheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:04
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; F16K31/082
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
An electromagnetically actuated valve arrangement for flowing media including a sleeve in which an intake and a discharge valve each having a valve seat are mounted, a permanent magnet arranged axially displaceable being provided between said intake and said discharge valve, and the flow of the medium from said intake to said discharge valve being controllable via said permanent magnet, comprising the improvement wherein said permanent magnet includes continuations at both ends, said continuations proceeding in the moving direction of said permanent magnet and extending beyond or over said valve seats, said continuations being in the form of a tube in which said permanent magnet is secured.
Claim 2
Dependent Claim
107 words
An electromagnetically actuated valve arrangement for flowing media including a sleeve in which an intake and a discharge valve each having a valve seat are mounted, a permanent magnet arranged axially displaceable being provided between said intake and said discharge valve, and the flow of the medium from said intake to said discharge valve being controllable via said permanent magnet, comprising the improvement wherein said permanent magnet includes continuations at both ends, said continuations proceeding in the moving direction of said permanent magnet and extending beyond or over said valve seats, said continuations being in the form of a tube in which said permanent magnet is secured.
Claim 3
Dependent Claim
28 words
A valve arrangement according to claim 1, wherein a common coil member is provided for magnetic coils which influence said permanent magnet, said sleeve forming said coil member.
Claim 4
Dependent Claim
45 words
A valve arrangement according to claim 2, wherein the radial spacing between said valve seats and said continuations as well as between said continuations and said sleeve are dimensioned such that said permanent magnet or said continuations thereof cannot come into contact with said sleeve.
Claim 5
Dependent Claim
17 words
A valve arrangement according to claim 1, wherein each valve seat contains elevations distributed over the circumference.
Claim 6
Dependent Claim
109 words
An electromagnetically actuated valve arrangement for flowing media including a sleeve in which an intake and a discharge valve each having a valve seat are mounted, a permanent magnet arranged axially displaceable being provided between said intake and said discharge valve, and the flow of the medium from said intake to said discharge valve being controllable via said permanent magnet, comprising the improvement wherein said permanent magnet includes continuations in its outer region and at both ends, said continuations proceeding in the moving direction of said permanent magnet and extending beyond or over said valve seats, each valve seat containing elevations distributed over the circumference which form a bead.
Claim 7
Dependent Claim
109 words
An electromagnetically actuated valve arrangement for flowing media including a sleeve in which an intake and a discharge valve each having a valve seat are mounted, a permanent magnet arranged axially displaceable being provided between said intake and said discharge valve, and the flow of the medium from said intake to said discharge valve being controllable via said permanent magnet, comprising the improvement wherein said permanent magnet includes continuations in its outer region and at both ends, said continuations proceeding in the moving direction of said permanent magnet and extending beyond or over said valve seats, each valve seat containing elevations distributed over the circumference which form a bead.
Claim 8
Dependent Claim
117 words
An electromagnetically actuated valve arrangement for a fluid comprising: an intake valve and a discharge valve, each having a valve seat; a sleeve member forming a common magnetic coil member in which said intake valve and said discharge valve are mounted, with their valve seats facing each other; a permanent magnet arranged axially displaceable within said sleeve member between said valve seats of said intake and discharge valves; said permanent magnet being mounted in a tube which extends beyond the ends of said magnet in the moving directions of said permanent magnet to extend beyond said valve seats; whereby the flow of fluid from said intake valve to said discharge valve is controllable by said permanent magnet.
Claim 9
Dependent Claim
117 words
An electromagnetically actuated valve arrangement for a fluid comprising: an intake valve and a discharge valve, each having a valve seat; a sleeve member forming a common magnetic coil member in which said intake valve and said discharge valve are mounted, with their valve seats facing each other; a permanent magnet arranged axially displaceable within said sleeve member between said valve seats of said intake and discharge valves; said permanent magnet being mounted in a tube which extends beyond the ends of said magnet in the moving directions of said permanent magnet to extend beyond said valve seats; whereby the flow of fluid from said intake valve to said discharge valve is controllable by said permanent magnet.
Claim 10
Dependent Claim
47 words
An electromagnetically actuated valve arrangement according to claim 6, wherein the radial spacing between said valve seats and said tube as well as between said tube and said sleeve member is such that said permanent magnet or said tube cannot come into contact with said sleeve member.
Claim 11
Dependent Claim
140 words
An electromagnetically actuated valve arrangement for a fluid comprising: an intake valve and a discharge valve, each having a valve seat; a sleeve member forming a common magnetic coil member in which said intake valve and said discharge valve are mounted, with their valve seats facing each other; a permanent magnet arranged axially displaceable within said sleeve member between said valve seats of said intake and discharge valves; said permanent magnet being mounted in a tube which extends beyond the ends of said magnet in the moving directions of said permanent magnet to extend beyond said valve seats; each valve seat including an annular bead around the circumference thereof, the diameter of said beads being smaller than that of said tube whereby the flow of fluid from said intake valve to said discharge valve is controllable by said permanent magnet.
Claim 12
Dependent Claim
140 words
An electromagnetically actuated valve arrangement for a fluid comprising: an intake valve and a discharge valve, each having a valve seat; a sleeve member forming a common magnetic coil member in which said intake valve and said discharge valve are mounted, with their valve seats facing each other; a permanent magnet arranged axially displaceable within said sleeve member between said valve seats of said intake and discharge valves; said permanent magnet being mounted in a tube which extends beyond the ends of said magnet in the moving directions of said permanent magnet to extend beyond said valve seats; each valve seat including an annular bead around the circumference thereof, the diameter of said beads being smaller than that of said tube whereby the flow of fluid from said intake valve to said discharge valve is controllable by said permanent magnet.
References Cited (Backward Citations)
US3379214A
Cited
DE1232424B
Cited
US3809123A
Cited
GB1417669A
Cited
US3977436A
Cited
US3983909A
Cited
US4240468A
Cited
US4253493A
Cited
US4564046A
Cited
JPS59200882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |