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:
Apr. 28, 1992
Filed:
Jan. 28, 1991
Applicant:
Inventor:
Ralph S Worsley, Vancouver, CA;
Assignee:
MacMillan Bloedel Limited, Burnaby, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
212 89 ; 212 90 ; 212 91 ; 212163 ; 212164 ; 414-2 ; 37DI / ;
Abstract
Cable machine control, particularly a grapple yarder is provided with an integrated control system whereby the operator is provided with controls each of which controls a desired operation or movement of the grapple. In particular the controls include a haul back and an in direction control, an up and down control and an opening and closing control some of which may be operated simultaneously with the speed of any operation or movement dependent on the maximum displacement of the control for any selected operation or movement.