REMOTE CONTROL HYDRAULIC VALVE

• US 3,827,669 A
• Filed: 05/07/1973
• Issued: 08/06/1974
• Est. Priority Date: 05/07/1973
• Status: Expired due to Term

• Current Assignee: Fletcher Rodgers
• Original Assignee: Fletcher Rodgers
• Inventors: Rodgers, Fletcher
• Primary Examiner(s): Klinksiek, Henry T.
• Application Number:
  US05/358,159
• Time in Patent Office: 456 Days
• Field of Search: 251/62 60/DIG.2 285/105
• US Class Current: 251/62
• CPC Class Codes: F16K 27/00 Construction of housing methods for welding housings B23K; Use of materials therefor
• CPC Class Codes: F16K 3/12 with wedge-shaped arrangements of sealing faces
• CPC Class Codes: F16K 31/122 the fluid acting on a piston F16K31/143, F16K31/163, F16K31/363, F16K31/383 take precedence
• CPC Class Codes: Y10S 60/911 Fluid motor system incorporating electrical system

Abstract

A device adapted to be installed in a pipe line, or the like, at a remote site and operated by remote control for selectively closing the pipe line for interrupting the flow of fluid therethrough. The device comprises a valve interposed in the pipe line and having a valve stem responsive to hydraulic pressure for alternately opening and closing the valve. The flow of hydraulic fluid is controlled by a motor which may be actuated from a main site whereby the hydraulic fluid may be directed to the valve stem in one direction for closing of the valve, and in a reverse direction for opening of the valve.

Claims

2. A remote control valve system for pipe line as set forth in claim 1 and wherein the hydraulic fluid means includes hydraulic fluid reservoir means in communication with the pump for supplying hydraulic fluid thereto and receiving hydraulic fluid therefrom.

3. A remote control valve system for pipe lines as set forth in claim 1 wherein the pump means comprises a reversible pump.

4. A remote control valve system for pipe lines as set forth in claim 1 wherein the motor means comprises a reversible motor.

5. A remote control valve system for pipe lines as set forth in claim 1 wherein the valve means comprises a valve stem secured to the gate member and operably connected with the hydraulic fluid means for reciprocation thereby to provide said reciprocal movement for said gate member.

6. A remote control valve system for pipe lines as set forth in claim 5 wherein the hydraulic fluid means comprises a hydraulic fluid chamber for receiving the valve stem therein, piston head means disposed within the hydraulic fluid chamber and secured to the valve stem, a first port member provided at one end of the hydraulic fluid chamber, a second port member provided at the opposite of the hydraulic fluid chamber, conduit means interposed between the pump and each of the ports for controlling the flow of hydraulic fluid to the hydraulic fluid chamber, said pump operable for directing the hydraulic fluid alternately to the ports for reciprocating the piston head within the hydraulic fluid chamber for selective reciprocation of the valve stem and gate member for selective opening and closing of the valve.