US2461304A

US2461304A - Control valve

Info

Publication number: US2461304A
Application number: US604702A
Authority: US
Inventors: Wilson John Harrison
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-07-12
Filing date: 1945-07-12
Publication date: 1949-02-08
Anticipated expiration: 1966-02-08

Description

Feb. 8; 1949.

J. H. WILSON CONTROL VALVE Filed July 12, 1945 INVENTOR. 'Jaizlz Wilson,

" ATTORNEYS Patented Feb. 8, 1949 NT EFFICE CONTROL VA VE John Harrison Wilson, Bay Shore, N. Y.

Application July-12, 1945, Serial No. 604,702

My present invention, in its broad aspect, has to do with improvementsin control valves for use with means for circulating cold salt water about the cooling medium of a boat power plant when the boat is not in motion, after the manner pointed out in mycompanion application hereinafter referred to, to the end that the cooling medium of the motor will be subjected to a supply of cold water through expansion and the quality water has of rising and circulating when it is heated, while during the movement of the boat forward or backward, flow of cold salt water is maintained by scoops and a syphonin efiect. In construction, my control valve is a valve body having an upper and a lower seat, the closure of the lower seat being controlled by two opposed and cooperating flap valves which normally hang down to open or uncover the lower seat when not influenced by circulation of cold salt water against the valves, but one of which is seated to close the valve when cold salt water is circulated or caused to flow in one direction, while the other is seated to close the valve when cold salt water is circulatod or caused to flow in the opposite direction. The other and upper valve seat is closed by a ball check valve which is normally seated to close the va ve unless moved from its seat by cold salt water flowing through the valve in one direction only when both flap valves are open.

My valves may therefore be said to have threeway action to permit only circulation of water through expansion or circulation and flow caused by heating rather than by direct positively induced circulation, and it is simple in construction, sturdy, practical and efficient and is automatic in operation, and has no fragile or intricate parts likely to become broken or deranged.

Other and equaly important objects and advantages of my invention will be apparent from the following description and drawings, and it is pointed out that changes in form, size, shape, materials, and construction and arrangement of parts is permissible and within the purview of my broad inventive concept, and the scope of the appended claims.

In the drawings wherein I have illustrated a preferred form of my invention:

Figure 1 is a vertical section showing a flap valve and the ball valve seated and water flowing in one direction;

Figure 2 is a vertical section showing the other flap valve and the ball valve seated and the water flowing in the opposite direction;

Figure 3 is a vertical section showing both flap valves unseated and the ball valve unseated to 3 Claims. (01. 277 71),

open the valve when the water is rising straight up due to expansion and the capacity of water to rise and circulate when heated;

Figure 4 is a section on the line l4 of Figure 3;

Figure 5 is a section on the line 5-5 of Figure 8, and

Figure 6 is a detail of the flap valves.

In the drawings wherein like characters of reference are used to designate like or similar parts throughout the several views:

The numeral l designates a fragmentary part 7 of the dome of a cold salt water tank to be used as a medium for cooling the cooling fluid of a power plant of a boat, and which cold salt water is caused to circulate through the tank through scoops and a syphoning effect and other means shown in detail and described in my companion application for Heat exchange, filed Aug. 8, 1945, Ser. No. 609,579. At the top of the dome is an opening 2 surrounded by an annular boss 3 on which is seated and attached by bolts 4 the an nular flange 5 of my valve 6. The valve body i extends flush with the inside of the tank and is enlarged as at 8 below the flange 5 to fit the opening 2. A pair of rectangularflap valves e and [U are hinged as at l l on the enlargement 8 at directly opposite sides of the valve so that when rush of fluid in the dome in one direction, as shown in Figure 1, opens or unseats the flap valve 9, and the pressure of fluid seats or closes the other flap valve Ill, while rush of fluid in the dome in the opposite direction, as shown in Figure 2, opens or unseats the flap valve IE] and closes or seats the flap valve 9, thereby preventing entrance of fluid into the valve body I in either direction of flow. However, since the flap valves 9 and It hang down by their own weight, they both automatically unseat or open when there is no flow or rush of water in either directiorn'as shown in Figure 3. At the upper end of the body 1 is another valve seat Ha on which is seated the ball check valve it which has a cage l3 formed of crossed wire and located in the valve head l4. When both valves 9 and ii! are unseated, rise of fluid in the, body I due to expansion or the like, unseats the ball check valve and any tendency of the'fiuid to return is prevented by re-seating of the ball. The valve head is internally and annularly flanged as at 15 at the top and has bolted as at It thereto the outlet conduit i1. My control valve has formed specific application for use in controlling circulation of water by means described in my companion patent application, but it has many other uses and applications not enumerated and is of general use and application.

As previously emphasized, interpretation of the scope of my invention should only be conclusive when made in the light of the subjoined claims.

I claim:

1. A control valve for use with fluids flowing selectively in different directions, comprising a valve body having upper and lower seats, a pair 3. The invention as defined in claim 1 wherein the flap valves are diametrically opposed, and are of opposed flap valves arranged to selectively 10 seat on the lower seat and close the body by fluid flowing in one of two opposite directions, said flap valves hinged to hang down by their weight 2. The invention as defined in claim 1 wherein the valve body has an annular attaching flange and an enlarged part below the flange to which the flap valves are hinged.

rectangular in formation, and wherein the head has an internal annular flange to which is attached the flanged portion of the fluid outlet conduit.

JOHN HARRISON WILSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 588,736 Eppich Jan. 1, 1897 832,388 Kellogg Oct. 2, 1906 1,421,135 Alton Jan. 27, 1922 1,953,007 Farmer Mar. 27, 1934