US3665962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically actuated valve
Assignee: TURMAC TOBACCO CO
•
Filing: 1970-02-16
•
Granted: 1972-05-30
•
Expires: 1990-02-16
Abstract
Abstract Device, comprising a permanent magnetic circuit, a coil suspended for reciprocatal movement within the air gap of said circuit, an enclosed space in front of said air gap, a supply duct connecting said space with a source of constant air pressure, a delivery duct connecting said space with the open air, a valve arranged for opening to a limited extent, determined by an adjustable stop member and for closing said space from the inside and located at the end of said delivery duct opening into said space, the said coil being fixedly connected to said valve for movement in unison therewith, said device, on connecting the coil with a source of electric current impulses having a rapid succession being adapted to provide air puffs leaving said delivery duct in accordance with said impulses.
Inventors
- 👤 Josephus D Dornseiffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
A; A24; A24C; A24C5/00; A24C5/32; A24C5/34; H; H02; H02K; H02K33/00; H02K33/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
241 words
A device comprising: 1. a permanent magnet circuit having an annular pole plate defining an air gap; 2. a coil axially movable in the air gap of said annular pole plate and electrically connectable to a source of current impulses; 3. a support for said coil; 4. a chamber coaxial with said coil and pole plate, said chamber having a wall and lying directly opposite the support for said coil, on the side thereof which faces away from said pole plate; 5. means for supplying a gaseous medium to said chamber to establish an overpressure therein; 6. a valve member in said chamber; 7. an adjustable stop: 8. a valve having no spring-bias, said valve having a valve-rod rigidly connected to said valve member and to said coil support for closing the wall of said chamber, said valve rod extending coaxially with said coil through a passage in said wall and being returned to its normally closed position by the overpressure in said chamber, said adjustable stop limiting the travel of said valve-rod, and hence the opening of said valve, to a position in which the pressure of the gaseous medium within the chamber exerts a force on the valve in the valveclosing direction; and 9. a conduit connecting said valve to the atmosphere whereby, when said coil receives a current impulse, said valve is opened and, in the absence of said current impulse, said valve is closed by said overpressure.
Claim 2
Independent Claim
241 words
A device comprising: 1. a permanent magnet circuit having an annular pole plate defining an air gap; 2. a coil axially movable in the air gap of said annular pole plate and electrically connectable to a source of current impulses; 3. a support for said coil; 4. a chamber coaxial with said coil and pole plate, said chamber having a wall and lying directly opposite the support for said coil, on the side thereof which faces away from said pole plate; 5. means for supplying a gaseous medium to said chamber to establish an overpressure therein; 6. a valve member in said chamber; 7. an adjustable stop: 8. a valve having no spring-bias, said valve having a valve-rod rigidly connected to said valve member and to said coil support for closing the wall of said chamber, said valve rod extending coaxially with said coil through a passage in said wall and being returned to its normally closed position by the overpressure in said chamber, said adjustable stop limiting the travel of said valve-rod, and hence the opening of said valve, to a position in which the pressure of the gaseous medium within the chamber exerts a force on the valve in the valveclosing direction; and 9. a conduit connecting said valve to the atmosphere whereby, when said coil receives a current impulse, said valve is opened and, in the absence of said current impulse, said valve is closed by said overpressure.
Claim 3
Dependent Claim
22 words
a coil axially movable in the air gap of said annular pole plate and electrically connectable to a source of current impulses;
Claim 4
Dependent Claim
22 words
a coil axially movable in the air gap of said annular pole plate and electrically connectable to a source of current impulses;
Claim 5
Dependent Claim
25 words
The device according to claim 1, wherein the combined mass of said valve and coil is relatively small compared to the mass-inertia of the device.
Claim 6
Dependent Claim
5 words
a support for said coil;
Claim 7
Dependent Claim
5 words
a support for said coil;
Claim 8
Dependent Claim
34 words
a chamber coaxial with said coil and pole plate, said chamber having a wall and lying directly opposite the support for said coil, on the side thereof which faces away from said pole plate;
Claim 9
Dependent Claim
34 words
a chamber coaxial with said coil and pole plate, said chamber having a wall and lying directly opposite the support for said coil, on the side thereof which faces away from said pole plate;
Claim 10
Dependent Claim
14 words
means for supplying a gaseous medium to said chamber to establish an overpressure therein;
Claim 11
Dependent Claim
14 words
means for supplying a gaseous medium to said chamber to establish an overpressure therein;
Claim 12
Dependent Claim
6 words
a valve member in said chamber;
Claim 13
Dependent Claim
6 words
a valve member in said chamber;
Claim 14
Dependent Claim
3 words
an adjustable stop:
Claim 15
Dependent Claim
3 words
an adjustable stop:
Claim 16
Dependent Claim
97 words
a valve having no spring-bias, said valve having a valve-rod rigidly connected to said valve member and to said coil support for closing the wall of said chamber, said valve rod extending coaxially with said coil through a passage in said wall and being returned to its normally closed position by the overpressure in said chamber, said adjustable stop limiting the travel of said valve-rod, and hence the opening of said valve, to a position in which the pressure of the gaseous medium within the chamber exerts a force on the valve in the valve-closing direction; and
Claim 17
Dependent Claim
97 words
a valve having no spring-bias, said valve having a valve-rod rigidly connected to said valve member and to said coil support for closing the wall of said chamber, said valve rod extending coaxially with said coil through a passage in said wall and being returned to its normally closed position by the overpressure in said chamber, said adjustable stop limiting the travel of said valve-rod, and hence the opening of said valve, to a position in which the pressure of the gaseous medium within the chamber exerts a force on the valve in the valve-closing direction; and
Claim 18
Dependent Claim
35 words
a conduit connecting said valve to the atmosphere whereby, when said coil receives a current impulse, said valve is opened and, in the absence of said current impulse, said valve is closed by said overpressure.
Claim 19
Dependent Claim
35 words
a conduit connecting said valve to the atmosphere whereby, when said coil receives a current impulse, said valve is opened and, in the absence of said current impulse, said valve is closed by said overpressure.
References Cited (Backward Citations)
US1186439A
Cited
US1822668A
Cited
US2750961A
Cited
US3053497A
Cited
US3167094A
Cited
FR1322349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |