US2734637A

US2734637A - Fisher

Info

Publication number: US2734637A
Authority: US
Publication date: 1956-02-14
Anticipated expiration: 1973-02-14

Description

Feb. 14, 1956 J. FISHER SUCTION LINE SCREEN Filed May 15, 1953 Joe Fisher INVENTOR.

(W EH United States Patent SUCTION LINE SCREEN Joe Fisher, Fort Benton, Mont. Application May 15, 1953, Serial No. 355,387 1 Claim. (Cl. 210-170) This invention relates to new and useful improvements and structural refinements in screens for suction lines leading to pumps, such as are commonly employed in irrigation equipment, or the like, and the principal object of the invention is to provide a screen of the character hereindescribed, which may be conveniently and efliciently employed to safeguard against the entry of mud, stones and other foreign matter into the suction line.

An important feature of the invention resides in providing a guard which surrounds in spaced relation the bottom portion of the foraminous screen body and thereby sustains the same out of contact with the muddy bottom of the reservoir or river from which the water is pumped.

Another important feature of the invention resides in the provision of adjustable means for connecting the suction line to the screen.

Some of the advantages of the invention reside in the simplicity of construction, in its efficient operation and in its adaptability to economical manufacture.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the invention;

Figure 2 is a longitudinal sectional view thereof;

Figure 3 is a sectional view, taken substantially in the plane of the line 3--3 of Figure 1;

Figure 4 is a sectional view, taken substantially in the plane of the line 4-4 in Figure 1; and

Figure 5 is a sectional view, taken substantially in the plane of the line 5-5 in Figure 1.

Like characters of reference are employed to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings in detail, the suction line screen is designated generally by the reference character and embodies in its construction a horizontally elongated, substantially cylindrical body 12 having a foraminous side wall 14 and a pair of

end walls

16, 18.

The end wall 16 is imperforate and is permanently secured to the side wall 14, while the end wall 18 is provided substantially at the center thereof with a circular opening 20 and is removably attached to the side wall 14 by a plurality of screws 22.

A substantially semi-cylindrical, imperforate guard 24 encloses the lower portion of the body 12 in spaced relation therefrom as indicated permanently secured at one end thereof to an extension of the end wall 16, while the other end of the guard is at 26, the guard 24 being fastened by removable screws 28 to an extension on the end wall 18.

It will be apparent from the foregoing that when the screen is positioned on the usually muddy bottom of a reservoir or river from which Water is to be pumped, the guard 24 will effectively sustain the body 12 out of contact with the muddy bottom but, nevertheless, water will still be able to completely surround the body 12 and enter the interior thereof through the foraminous side wall 14 by virtue of the space 26 existing between the guard 24 and the side wall 14.

A suction line or tube 30 extends through the opening 20 to the interior of the body 12 and carries a clamp 32 which is attached by a fastening element 34 to a relatively short strap 36 which, in turn, is attached by a fastening element 38 to a bracket member 40 mounted on the outer surface of the end wall 18 above the opening 20.

The lower portion of the clamp 32 carries a fastening element 42 which is receivable selectively in a plurality of apertures 44 provided in a relatively long strap 46, connected by a fastening element 48 to a bracket member 50. The latter is secured to the outer surface of end wall 18 below the opening 20, as shown.

It will be apparent that by adjusting the clamp 32 with respect to the strap 46, the angular relationship of the tube 30 to the body 12 may be varied as desired.

From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claim.

What is claimed as new is as follows:

A suction line screen comprising a horizontally disposed cylindrical body having a foraminous side wall and open ends, plates secured to opposite ends of the body for closing the same and having semi-circular edge extensions, one of said plates having an outlet opening therein, an imperforate semi-cylindrical guard underlying and supporting said body and fixed to said extensions in spaced relation to said body to supportsaid body in elevated position, a suction tube extending through said opening into said body, a clamp suspending said tube and pivoted on said one plate for tilting to tilt said tube bodily, a strap extending from said one plate beneath said clamp, and coacting devices on said clamp and strap, respectively, for securing said clamp to said strap in different tilted positions.

References Cited in the file of this patent UNITED STATES PATENTS 201,689 Leermo Mar. 26, 1878 557,735 Warren Apr. 7, 1896 558,131 Warren Apr. 14, 1896 1,116,234 Brown Nov. 3, 1914 1,816,600 McKinley et a1 July 28, 1931 2,463,814 Skinner Mar. 8, 1949 2,668,624 Wahlin Feb. 9, 1954 FOREIGN PATENTS 610,783 Germany Sept. 20,. 1932 862,916 France Mar. 19, 1941