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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 4591209 B1

PDFFull Text
Date of Patent:
May. 27, 1986

Filed:

Dec. 28, 1983

Protecting device for partial-cut cutting machines

Applicant:
Inventors:

Bernhard Droscher, Zeltweg, AT;

Otto Schetina, Zeltweg, AT;

Herwig Wrulich, Zeltweg, AT;

Alfred Zitz, Zeltweg, AT;

Assignee:

Voest-Alpine Aktiengesellschaft, Vienna, AT;

Attorney:

Cushman, Darby & Cushman

Primary Examiner:

Stephen J Novosad

Assistant Examiner:

Michael A Goodwin

Int. Cl.
CPC ...
E21C / ;
U.S. Cl.
CPC ...
299-1 ; 299 75 ;
Abstract

For protecting partial-cut cutting machines from overload, a vibration sensor 7 is provided on the swivellable cutting arm 2 carrying rotatably supported cutting heads 6. The signals of the vibration sensor 7 are utilized in an electronic control 8 and used for controlling the pivotal drive of the cutting arm 2. The electronic control 8 has a threshold switch which is connected with an adjusting drive for varying the supply capacity of the hydraulic pump of the pivotal drive.

Find Patent Forward Citations

Droscher, Bernhard. (1986). Protecting device for partial-cut cutting machines (U.S. Patent No. 4591209). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4591209

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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