The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 03, 2018

Filed:

Jul. 01, 2015
Applicant:

Sandvik Mining and Construction Oy, Tampere, FI;

Inventors:

Timo Leino, Tampere, FI;

Timo Muuttonen, Tampere, FI;

Antti Koskimaki, Tampere, FI;

Ari Kotala, Tampere, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/14 (2006.01); E21B 21/08 (2006.01); E21B 21/10 (2006.01); F16K 31/12 (2006.01); F16K 47/04 (2006.01); E21B 4/06 (2006.01);
U.S. Cl.
CPC ...
E21B 4/14 (2013.01); E21B 4/06 (2013.01); E21B 21/08 (2013.01); E21B 21/103 (2013.01); F16K 31/12 (2013.01); F16K 47/04 (2013.01);
Abstract

A control valve for controlling flow of a pressure fluid in a breaking device includes a sleeve-like control valve having at least one opening enabling flow of the pressure fluid through the opening. The at least one opening includes at least one wall, at least a part of which is not arranged in a direction parallel to a radial direction of the control valve extending through the middle point of the cross section of the opening on the outer circumference of the control valve, such that the pressure fluid flowing through the opening may be arranged to rotate the control valve about the longitudinal axis of the control valve.


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