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Publication numberUS55822 A
Publication typeGrant
Publication dateJun 26, 1866
Publication numberUS 55822 A, US 55822A, US-A-55822, US55822 A, US55822A
InventorsEobeet Ooenelius
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in pumps for deep wells
US 55822 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)



Specification forming part of Letters Patent No. 55,822, dated June 26, 1866.

To all whom it may concern:

Be it known that I, ROBERT CORNELIUS, of the city of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in the Construction of Apparatus to be Attached to Oil-Well Pumps; and I do hereby declare the following` to be a full and exact description ofthe same, reference 'being had to the annexed drawings, making` a part ofthe same, in whioh- Figure l represents an outside view of my pump attachment. Fig. 2 is a vertical section of the same.

In the ordinary oil-Well pump a quantity of dbris is drawn into its interior from time to time, deranging its action.

My improvement consists in adding` to the lower end of the pump a strainer to prevent this difficulty.

My appendage is to be attached to the ordinary oil-well pump and is composed as follows: A B is a cylinder or tube, two inches in diameter and five inches long, with a perforated or gauze cylinder, B B, two inches in diameter and sixteen inches long, attached to it below. This cylinder is surrounded by a cylinder or casing, C D, somewhat largerin diameter-say two and seven-'eighths inches diameter and twenty four inches long. A third cylinder, E F, two inches in diameter, projects up into C D, and is from t'teen to thirty feet long, and closed by means of a screw cap or plu g at its lower extremity. Apertures G H I J are made at the upper end of C D. The upper extremity of A B is screwed onto the lower end of the ordinary pump.

The operation is as follows: The rising` of the piston causes the oil from the well to pass in through the apertures Gr H I J and downward and inward through the cylindrical wiregauze screen B B and up into the pump. Any dbris will be retained on the outside of the screen B B and necessarily fall into the tube E F, where they will accumulate and can be removed at any time desired in quantity. Thus the dbris is entirely excluded from. the body of the pump and cannot impair the action of the pump.

Having l thus described my improvement, what I claim is- The combination of an outer case with apertures,an interior wire-gauze or perforated screen, and a receptacle below for the dbris, substantially as described.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2490443 *Apr 13, 1945Dec 6, 1949Knipper Louis HFilter
US4064046 *Jun 2, 1976Dec 20, 1977Lloyd Dwight GilgerSelf-cleaning filter apparatus
US5533478 *Apr 13, 1994Jul 9, 1996Siemens Automotive L.P.Discrete filter and pressure regulator mounting for a fuel rail
US6098657 *Jun 9, 1998Aug 8, 2000Multistack, Inc.In-line fluid flow trap for modular refrigeration systems
Cooperative ClassificationB01D23/28