Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS687041 A
Publication typeGrant
Publication dateNov 19, 1901
Filing dateJul 1, 1901
Priority dateJul 1, 1901
Publication numberUS 687041 A, US 687041A, US-A-687041, US687041 A, US687041A
InventorsWilliam L Logan
Original AssigneeWilliam L Logan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 687041 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)




SPECIFICATION fOrmngpaIt 0f Lettel'S Pielt N0. l687,*(141, datedNOYember 19, 1901. Application filed July 1,1901vl Serial No. 66,6;11. `(No model.)

T0 all whom t may concern,.-

Be it known that I, WILLIAM L. LOGAN, a citizen of the United Statesfof America, residing at Oxford, in the county ofDoddridge and State of West Virginia, have invented certain new and useful Improvements in Valves, of which the following is a specification, reference being had therein to the ac` companying drawings.

This invention relates to certain new and useful improvements in valves, and is parfticularly applicable for gas, water, steam, and the like where a high pressure is constantly maintained in the pipes.

The present invention has for its object the provision of novel means whereby the pressure-against the valve is entirely relieved; furthermore, to produce a perfect balancevalve that may be easily turned to open'or close the ports.

The invention has for its'still further object to construct a valve' ofthe above-described character that will be extremelysimple in construction, strong, durable, and comparatively inexpensive to manufacture; furthermore, one that will be highly efficient in its operation.

With the above and other objects in viewA the invention consists in thenovel combina- Ation and arrangement of parts to be hereinafter more more fully described, and specifically pointed out in the claims.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, wherein like numerals of reference indicate corresponding parts throughout the several views, and in which Figure 1 is a vertical sectional view of my improved valve. Fig. 2 is a longitudinal sectional view thereof. Fig. 3 is a top plan View of the valve. Fig. 4 is a side view of the valve. Fig. 5 is a front view thereof.

In the drawings the reference-numeral l indicates a valve-casing having an inlet-port 2 andan outlet-port 3. Arranged in the valve-casing is a triangular-shaped wall 4, forming passage-ways 5 5, communicating with ports 6 6, registering with the valve.

The reference-n umeral 7 indicates the valve, having a semispherical seat 8, adapted to be arranged in the seat 9, formed in the valvecasing. The said valve 7 is further provided with upwardly-extending walls l0, which are adapted toopen and close the ports 6. In the upper portion ofthe valve is formed a square recess ll to receive the square end l2 of the valve-stem 14, the latter extending through ,the screwfthreaded collar l5, arranged in the valve-casing. The referencenumeral 16 indicates,k a contracted outlet communicating with the outlet 3, leading from the interior of the valve.

' The operation of my improved valve' is 'as follows: The high pressure which is usually ragainst the valve will be normally against the triangular wall et, which will divide the pressure into the passage ways 5 5 and the two ports 6. These ports being on each side of the valve will tend to equalize the pressure and will assure a perfect balance of the valve that will make it very easy to turn in one direction or the other. As the valve is turned as shownrin dotted lines in Fig. 2 the ports will be closed, and when turned in the reverse direction, as shown in full lines, the ports will be open. A stop may be arranged in the interior of the valve to limit the movement thereof, if desired, although this does not constitutea part of my invention.

The many advantages obtained by the use of my improved device will be readily apparent from the foregoing description, taken in connection with the accompanying drawings.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a valve, a valve-casing having an inlet-port and a contracted outlet-port located opposite to each other in the valve-casing, a valve seated for rotation in the casing, said valve cut away on .both sides and having a central opening, Va triangular wall varranged within the casing in front of `the inlet forming two passage-ways communicating with inlet-ports leading to opposite sides of the valve, and means for operating the valve, substantially as described.

2. In a valve, the combination of a valvecasing, a triangular wall arranged therein, a


suitable inlet and outlet port, a valve arranged in said casing, a semispherical valve-seat, and a Valve-stem, substantially as described.

3. In a valve, the combination of a casing having arranged therein two passage-Ways communicating with the inlet-port, and a contracted outlet-port, a valve having tWo upwardly-extendin g walls, a semisphericaiseat, and a stem arranged to said valve, substantiaily as described.

4. In a Valve, the combination with a Valveeasing, a wail arranged in said casing forming two passage-Ways communicating with the inlet-port, an outlet-port arranged in said casing, a valve, two Walls arranged in said valve, and a semisphericai seat and stem, all parts being arranged and operating substantially as described, and for the purpose set forth.

In testimony whereof I affix my signature in the presence of two Witnesses.

WILLIAM L. LOGAN. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4164240 *Jan 26, 1977Aug 14, 1979Cyphelly Ivan JDevice for low-loss variation of flow from a positive displacement pump by periodic interruption of the flow
US4265267 *Aug 23, 1978May 5, 1981Cyphelly Ivan JFlow control device for use with positive displacement pump
Cooperative ClassificationF16K47/045