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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.

Patent No.:

US 9574962 B1

PDFFull Text
Date of Patent:
Feb. 21, 2017

Filed:

Mar. 19, 2013

Hydraulic attachment

Applicants:

Oliver Preuss, Dortmund, DE;

Stefan Lohmann, Muelheim, DE;

Colin Dirr, Hattingen, DE;

Oleg Knjazev, Dorsten, DE;

Martina Jaekel, Gelsenkirchen, DE;

Uwe Autschbach, Oberhausen, DE;

Markus Mellwig, Hagen, DE;

Inventors:

Oliver Preuss, Dortmund, DE;

Stefan Lohmann, Muelheim, DE;

Colin Dirr, Hattingen, DE;

Oleg Knjazev, Dorsten, DE;

Martina Jaekel, Gelsenkirchen, DE;

Uwe Autschbach, Oberhausen, DE;

Markus Mellwig, Hagen, DE;

Assignee:

CONSTRUCTION TOOLS GMBH, Essen, DE;

Attorney:

Andrew Wilford

Primary Examiner:

Marina Tietjen

Assistant Examiner:

Seth W Mackay-Smith

Int. Cl.
CPC ...
F17C 13/02 (2006.01); E02F 9/26 (2006.01); G01L 19/10 (2006.01); E02F 5/32 (2006.01); E02F 9/22 (2006.01); F15B 5/00 (2006.01); F15B 20/00 (2006.01); B25D 9/12 (2006.01); B25D 9/00 (2006.01); E01C 23/00 (2006.01); E04G 23/08 (2006.01); G01L 7/16 (2006.01); F15B 21/00 (2006.01);
U.S. Cl.
CPC ...
G01L 19/10 (2013.01); B25D 9/00 (2013.01); B25D 9/12 (2013.01); E01C 23/00 (2013.01); E02F 5/323 (2013.01); E02F 9/226 (2013.01); E02F 9/2275 (2013.01); E04G 23/08 (2013.01); F15B 5/00 (2013.01); F15B 20/00 (2013.01); F15B 21/005 (2013.01); G01L 7/16 (2013.01); B25D 2250/221 (2013.01); Y10T 137/8326 (2015.04);
Abstract

The present invention relates to a hydraulic attachment comprising a hydraulic circuit, the attachment being a construction or demolition tool, in particular a hydraulic breaker, demolition shears, scrap shears, a pulverizer, a gripper, a crusher bucket or a compactor, which can be mechanically connected to a support device and hydraulically connected to the hydraulic system of the support device. In order to enable the hydraulic circuit to be opened quickly and safely within an attachment and, in particular, to make it possible to display the presence of a particular pressure level within a hydraulic attachment and to determine whether a dangerous residual pressure is present in the system, a hydraulic attachment is proposed that has a residual pressure display () which is connected to the hydraulic circuit of the attachment in a detachable or non-detachable manner.

Find Patent Forward Citations

Quick Actions:

Preuss, Oliver. (2017). Hydraulic attachment (U.S. Patent No. 9574962). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9574962

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