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. 11, 1978
Filed:
Feb. 24, 1976
Applicant:
Inventor:
Leif Larsson, Eskilstuna, SW;
Assignee:
Volvo BM AB, Eskilstuna, SW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G / ; F15B / ;
U.S. Cl.
CPC ...
91412 ; 91450 ; 91459 ; 83801 ; 144 / ;
Abstract
A device for cutting trees has two chain saws. For engaging the tree the chain saws are pivotable towards each other with the aid of feeding means. The power supplied to the saw chains is sensed and when an upper power limit is reached the feeding means is irreversibly set to the next lower of a small number of preselected feeding speeds.