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:
Nov. 15, 1977
Filed:
Jul. 06, 1976
Applicant:
Inventor:
Henry A Holland, Houston, TX (US);
Assignee:
Raymond International Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
173-1 ; 61 535 ; 2541875 ;
Abstract
Method and apparatus for forming piles in the earth with a pile hammer rig having a hoisting drum carried by a crane, driving and braking apparatus for the drum, a drop-weight, a hoisting rope leading from the drum for lifting the drop-weight, apparatus for selectively absorbing kinetic energy of the drum and rope disposed adjacent the drop-weight; apparatus for applying the drum brake prior to impact of the drop-weight; and a fluid swivel system for connecting the drop-weight to the hoisting rope.
Holland, Henry. (1977). Method for operating pile driver (U.S. Patent No. 4058175). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4058175
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile