Closing device for use in a valve device for a pressurized gas cylinder
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05D-016/10
G05D-016/04
출원번호
US-0339641
(2003-01-10)
우선권정보
FR-02 00292(2002-01-11)
발명자
/ 주소
Rousselin,Guy
출원인 / 주소
GCE SAS
대리인 / 주소
Lowe, Hauptman &
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
A device for closing a gas inlet in a valve device for a pressurized gas cylinder has a freedom of translation between an extreme gas inlet closing position and an open position at an extreme stop position or an intermediate position determined by the position of a component having translatory movem
A device for closing a gas inlet in a valve device for a pressurized gas cylinder has a freedom of translation between an extreme gas inlet closing position and an open position at an extreme stop position or an intermediate position determined by the position of a component having translatory movement that can be adjusted by a handwheel.
대표청구항▼
What is claimed is: 1. A gas inlet closing device for closing a gas inlet in a valve device for a pressurized gas cylinder, comprising: a structure for enabling the valve device to have a freedom of translation between an extreme gas inlet closing position and a gas inlet open position at an extrem
What is claimed is: 1. A gas inlet closing device for closing a gas inlet in a valve device for a pressurized gas cylinder, comprising: a structure for enabling the valve device to have a freedom of translation between an extreme gas inlet closing position and a gas inlet open position at an extreme stop position or an intermediate position determined by the position of a component having translatory movement which can be adjusted by the action of a handwheel; a cylindrical, rod-type mobile flap having a lower end for closing the inlet of as coming from the cylinder, said mobile flap being adapted to have a translatory movement; a part having a hollow cylindrical body for coaxially surrounding said flap; a spring disposed around said part that surrounds the flap, said spring having a first end engageable with a shoulder of said part and a second end extending beyond the upper end of said part; and a spring compressor including said flap for compressing said spring, said spring compressor being disposed in an upper end of the flap that extends beyond said part. 2. A gas inlet closing device according to claim 1, wherein the intermediate position is determined by a component forming an intermediate stop whose movement is controlled by the action of the handwheel. 3. A gas inlet closing device according to claim 2, wherein the handwheel includes a control for the movement of the intermediate stop, formed by a gate valve stem integral with the handwheel. 4. A gas inlet closing device according to claim 3, wherein the spring compressor is disposed at a first end of the spring, said spring compressor being arranged for compressing the spring in response to a free second end of the gate valve stem leaning on the end opposite the flap closing end, the gas inlet closing device further including a structure for opening the gas inlet comprising the second end of the gate valve stem not leaning on the end opposite the flap. 5. A gas inlet closing device according to claim 3, wherein the first end of the gate valve stem is fixed to the handwheel, a second end of the gate valve stem, forming the intermediate stop, being integral in rotation with the first end and free in translation relative to it, the second end of the gate valve stem being threadingly engaged with a body of a valve device, wherein rotation of the handwheel is adapted to control helical movement of the second end of the gate valve stem in the valve body. 6. A gas inlet closing device according to claim 5, wherein the two ends comprise complementary castellations causing them to be integral with each other in rotation. 7. A gas inlet closing device according to claim 5, wherein the first end is connected to the second end by a spring for allowing the translatory movement of the latter end relative to the first end. 8. A gas inlet closing device according to claim 5, wherein the handwheel is rotatable in both directions for driving the gate valve stem as the handwheel moves, the handwheel, in response to its rotational opening movement being arranged for controlling: (a) in a first part of the rotation, the opening of a gate valve to release the gas from the cylinder; and (b) in a second part of its rotation, a setting of the flow of released gas to a valve outlet. 9. A gas inlet closing device according to claim 5, wherein at least two orifices of different sizes extend through the part forming a first end of the gate valve stem, a third orifice extending in the valve body, the valve body being connected to the gas outlet, the second part of the rotation of the control handwheel being arranged to cause the two orifices and the third orifice to be opposite from one another to determine the gas outflow rate. 10. A gas inlet closing device according to claim 5, further comprising a gate valve that while in the open or closed position, comprises a holder which, when the handwheel is actuated, is adapted to cause the handwheel to be held in a constant projection relative to the valve body. 11. A gas inlet closing device according to claim 10, wherein the holder for the projection of the handwheel relative to the valve body comprises a stop arrangement for preventing the handwheel from moving inwards to or outwards from the valve body. 12. A gas inlet closing device according to claim 5, wherein the valve comprises a gas pressure reduction device located downstream from a gas outlet gate valve of the cylinder. 13. A gas inlet closing device according to claim 5, wherein the valve comprises a pressure reduction device and a system for providing residual pressure below which a flap no longer allows gas to pass to the pressure reduction device disposed between the pressure reduction device and the gas outlet gate valve of the cylinder. 14. A gas inlet closing device according to claim 5, wherein the valve device includes a manometer connected by a duct located upstream from the gas outlet gate valve for measuring the pressure in the gas cylinder. 15. A gas inlet closing device according to claim 1, wherein the lower end of said cylindrical rod-type mobile flap includes a shoulder for closing the inlet of gas coming from the cylinder, said part having a lower face forming a stop surface for said mobile flap shoulder in the extreme position of the gas inlet closing device for enabling opening of the inlet of gas.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (2)
Patel Milan N. (10 Norton Ave. Surbiton ; Surrey KT5 9DY GBX) Clements Hubert J. T. (32 Canford Avenue Northolt ; Middlesex GBX), Pressure reducing valve.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.