US1579485A - Strainer - Google Patents

Description

April 6, 1926.

P. J. PICCIRILLI STRAI NER Filed August 18, 1921 W'INVENTOR /2 P I a rrokmsy I Patented Apr. 6, 1926. I p UNITED STATES I PASQUALE JOSEPH PICCIRILLI, OF NEW YORK, N. Y.

sTRAINER. i"

Application filed August is, 1921. "Serial No. 493.230.;

v To all whom z'tmay concern:

Be it known that I, PASQUALE J osurir PICGIRILLI, a citizen of the United States of America, residing at city, county, and State of New York, have invented new and useful Improvements in Strainers, of which the following is a specification. I

, This invention relates tomeans for strain ing fluids and is particularly desirable for use in connection with the supply of gasolene to internalcombustion engines such as are employed to supply motive power for automobiles and the like. l

The present invention is an improvement upon the device of my application S. N. 343,886 filed December 10,1919.

The main object of the'nvention is to provide a device of the same general character as that'of my'prior'application above referred to but which shall be simpler and be more readily and inexpensively made.

Other and ancillary objects of the invention will appearhereinafter.

In the accompanying drawings whichillustrat-e the invention-- 1 V Fig. 1 is a side elevation of an automobile having an engine with a gasolene supply fitted with the invention; 7,

Fig. 2 is a'vertical, transverse, central section through the straining device, the

"scale being enlarged from that on which Fig. 1 is drawn and being a full sized view of Fig. 2,

Fig. 4 is a section on the. line 44 of Fig.

Fig. 5 is a central longitudinal section of a modified formof strainer member partly broken away; and

Fig. 6 is a bottom Fig. 5.

Referring to the drawings and first to Figs. 1 to dinclusive, the automobile 1 has the usual propelling, internal-combustion engine as indicated at 2. Thesource of plan of the device of supply of gasolene may be a tank 3 com-' munic-ating by a pipe 4: with the inlet opening 5 of the straining device whence a pipe 6 leads to the carburetor 7 whence a com-- bustible mixture is supplied to the engine in a well known way.

The strainer comprises a casing having a bulb-like portion 8 at its lower end forming a sedimentation chamber from the lower end of which the contents may be drained by opening the coclr9, this cock being normally closed. The inlet openingto the casing is at 5 while the outlet is at 10. The top of the casing comprises a cylindrical portion 11. Within the cylindrical portion 11 and spaced therefrom by a circumferential clearance 12 is a cylindrical or tubular drum 13 having a number of circumferential apertures 1e];

through which fluid may pass from the interiorof the frameto the clearance 12.

Wrapped about the frame 13 and held in intimate relation thereto so that fluid cannot pass from the inside of the frame 18 to the clearance 12 without passing through it is a sheet or strip of wire gauze 15 forming a strainerfor the fluid, and it is to be observed-that any matters strained out of the fluid have a. practically unobstructed fall into the sedimentation chamber in'the bot.-

tom of the casing.

The lower end of the frame 13 is pro-' vided with screw-threads engaging with suitablecooperating threads 16 in the wall of the casing between the inlet and outlet openings. At its upper end the frame carries the casing cap 17 which is integrally formed with it and serves to close the upper end of the casing. Also there is a shoulder 18 secured to the frame 18, which fits closely within the cylinderical wall 11 of the casing so as to cause any sidewise pull upon the cap to be taken up by the casing body instead of by the threaded connection at 16. The apparatuswould be liable to be injured in the latter case. To provide a tight joint a gasket 19 is interposed between the cylinderical portion 11 and cap'of the casing, while finger pieces 20 provide means for readily turning the cap and frame in screwing them into position in the casing. r

It will be seen that, as inmy prior appli- 1 cation referred to, instead of the fluid'being forced through the strainer by the force of gravity as in other structures, it passes through the strainer by rising therethrough as the lower part of the casing fills up which The ciable obstruction to the flow of fluid through the system.

It will further be seen that by the present invention a remarkably simple structure is produced. In fact it may be built in two pieces as shown, one for the casing (substantially cylindrical in form) and the other for the closing cap at one end in combination with the strainer. The strainer may be readily removed and cleaned at any time desired by unscrewing and removing the strainer and cap.

It will be seen that the lower end of the frame 13 is provided with a circumferential countersunk recess 21. Instead of applying the straining gauze to the frame as above referred to, the straining means may consist of a hollow or tubular piece of straining material 22 such as chamois (see Figs. and 6) which is held in place by an incomplete spring ring 23 placed in the recess 21 and gripping the straining material against its side.

IVhile the invention has been illustrated in what is considered. its best application it may have other embodiments without departing from its spirit and is not therefore limited to the structures shown 111 the drawings.

hat I claim is: 1 In a straining device, the combination with a casing having a cap and inlet and outlet openings at difierent levels, of a strainer-carrying frame secured to said cap in screw-threaded engagement with said casing between said openings and extending upwardly from said screw-threaded engagement and straining means carried by said frame.

2. In a straining device, the combination with a casing having inlet and outlet open ings at different levels, a sediment chamber at its lower end and acap for closing its upper end, of a substantially cylindrical strainer carrying frame secured to and de pending from said cap and in screw-threaded engagement at its lower end with said casing between said openings, there being a clearance between said casing and said frame and said frame having openings through which the fluid can pass from the interior thereof to said clearance, the outlet opening opening into said clearance, and a strainer carried said frame.

In testimony whereof I have signed this specification this 17th day of August 1921. PASQUALE JOSEPH PICCIRILLI.

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