US1168399A - Strainer. - Google Patents

Strainer. Download PDF

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Publication number
US1168399A
US1168399A US3221215A US3221215A US1168399A US 1168399 A US1168399 A US 1168399A US 3221215 A US3221215 A US 3221215A US 3221215 A US3221215 A US 3221215A US 1168399 A US1168399 A US 1168399A
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United States
Prior art keywords
strainer
conduit
seat
head
cylindrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US3221215A
Inventor
Edward C Kelly Jr
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KELLY SEPARATOR Co
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KELLY SEPARATOR Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by KELLY SEPARATOR Co filed Critical KELLY SEPARATOR Co
Priority to US3221215A priority Critical patent/US1168399A/en
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Publication of US1168399A publication Critical patent/US1168399A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves

Definitions

  • My invention relates to strainers for liquid conduits, and is particularly designed for use in separator traps and the like.
  • the conduit indicated generally by F, has an upwardly extending passage H in which the strainer I slides as occasion demands.
  • the strainer I consists of a perforate wall cylindrical in shape and this cylindrical perforate portion fits loosely in the upwardly extending conduit H.
  • the head of the strainer I at I is an imperforate plate to which the strainer portion I is secured; this imperforate head is of larger diameter than the cylindrical strainer so that it presents a circumferential flange, and this flange is adapted to seat after the manner of a check Valve at the seat J formed in the casing.
  • the strainer is provided on its head with a bail I which can be reached through the opening which is normally closed by the clean out plug L.
  • the normal course of liquids through the casing represented by F is from the inlet opening G to the final out let K.
  • the liquid pressure on the under side of the imperforate head I lifts the strainer, exposing as many perforations as are necessary to afford outlet for the liquid.
  • the strainer automatically adapts itself to the demands made upon it rising to a greater or less extent according to the greater or less demand of liquid for passage. If, moreover, the strainer perforations become partially filled or clogged with sediment, grease or the like, the strainer will compensate for such constrictions by a greater lift than would be the case if the perforations were free from constricting sediment.
  • a combination strainer and check valve for liquid conduits comprising a laterally perforated cylindrical strainer adapted to slide in a similarl shaped section of the conduit, an imperforate head secured to said strainer having a circumferential flange coacting with a seat in said conduit, and said conduit provided with a slideway section for the strainer and a seat for the imperforate head thereof.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chairs Characterized By Structure (AREA)

Description

an s'rans I l .J I
. ANT @EFTQE.
EDWARD C. KELLY, JR., OF BOSTON, MASSACHUSETTS, ASSTGNOR TO KELLY SEPARATOR COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.
STRAINER.
Specification of Letters Patent.
Patented J an. 18, 1916.
Application filed June 4, 1915. Serial No. 32,212.
T 0 all whom it may concern Be it known that I, EDWARD C. KELLY, J r., a citizen of the United States, and resident of Boston, in the county of Suifolk and State of Massachusetts, have invented new and useful Improvements in Strainers, of which the following is a specification.
My invention relates to strainers for liquid conduits, and is particularly designed for use in separator traps and the like.
In the drawing hereto annexed which illustrates my invention, there is shown in side elevation a strainer, the portion of the casing and conduit in which the strainer is placed being shown in section.
The conduit, indicated generally by F, has an upwardly extending passage H in which the strainer I slides as occasion demands. The strainer I consists of a perforate wall cylindrical in shape and this cylindrical perforate portion fits loosely in the upwardly extending conduit H. The head of the strainer I at I is an imperforate plate to which the strainer portion I is secured; this imperforate head is of larger diameter than the cylindrical strainer so that it presents a circumferential flange, and this flange is adapted to seat after the manner of a check Valve at the seat J formed in the casing. For convenience in manipulation, the strainer is provided on its head with a bail I which can be reached through the opening which is normally closed by the clean out plug L. The normal course of liquids through the casing represented by F is from the inlet opening G to the final out let K. When liquid demands passage through this conduit and the strainer, the liquid pressure on the under side of the imperforate head I lifts the strainer, exposing as many perforations as are necessary to afford outlet for the liquid. The strainer automatically adapts itself to the demands made upon it rising to a greater or less extent according to the greater or less demand of liquid for passage. If, moreover, the strainer perforations become partially filled or clogged with sediment, grease or the like, the strainer will compensate for such constrictions by a greater lift than would be the case if the perforations were free from constricting sediment. Each time the flow of liquids ceases and the strainer drops to its seat the slight jar occasioned by the seating of the imperforate head I upon the seat J will tend to dislodge sediment temporarily adhering to the strainer. In case of back flow at the final outlet K, the check valve action of the imperforate head I will prevent the back flow from passing into the passage H and normally into G. In describing the strainer I as cylindrical, I use the term as generally descriptive of any shape, be it truly cylindrical or polyhedral, which is adapted to slide longitudinally in a similarly shaped conduit.
I claim:
A combination strainer and check valve for liquid conduits, comprising a laterally perforated cylindrical strainer adapted to slide in a similarl shaped section of the conduit, an imperforate head secured to said strainer having a circumferential flange coacting with a seat in said conduit, and said conduit provided with a slideway section for the strainer and a seat for the imperforate head thereof.
Signed by me at Boston, Massachusetts, this 1st day of June, 1915.
EDWVARD C. KELLY, J R.
Witnesses:
CHARLES F. WOODBERRY, RICHARD WV. HALL.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.
US3221215A 1915-06-04 1915-06-04 Strainer. Expired - Lifetime US1168399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3221215A US1168399A (en) 1915-06-04 1915-06-04 Strainer.

Applications Claiming Priority (1)

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US3221215A US1168399A (en) 1915-06-04 1915-06-04 Strainer.

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US1168399A true US1168399A (en) 1916-01-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327726A1 (en) * 1993-08-18 1995-02-23 Biwater Ibo Gmbh Solids separating apparatus provided for clarification plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327726A1 (en) * 1993-08-18 1995-02-23 Biwater Ibo Gmbh Solids separating apparatus provided for clarification plants

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