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.:
Date of Patent:
Jan. 21, 2020
Filed:
Jun. 30, 2016
Applicant:
American Piledriving Equipment, Inc., Kent, WA (US);
Inventors:
Steven N. Cress, Renton, WA (US);
Joseph M. Klekotka, Seattle, WA (US);
Assignee:
AMERICAN PILEDRIVING EQUIPMENT, INC., Kent, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D 7/14 (2006.01); B25D 9/04 (2006.01); E02D 7/10 (2006.01); E02D 7/12 (2006.01); E02D 7/26 (2006.01);
U.S. Cl.
CPC ...
E02D 7/14 (2013.01); B25D 9/04 (2013.01); E02D 7/10 (2013.01); E02D 7/125 (2013.01); E02D 7/26 (2013.01);
Abstract
A hydraulic impact hammer for striking a pile has a main housing, a ram supported, a coupler rod, a conversion housing, a hydraulic actuator, and a ram connector. The hydraulic actuator defines an actuator rod, a lifting head, and a lift connector. The lifting head defines an upper wall and a lower wall. The lift connector attaches the actuator rod to the upper wall of the lifting head. The ram connector attaches the coupler rod to the lower wall of the lifting head. Operation of the hydraulic actuator raises and lowers the ram to strike the pile.