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. 24, 1990
Filed:
Jan. 18, 1989
Geoffrey M Burlington, East Sussex, GB;
Stephen C Watkins, Worcestershire, GB;
Ofrex Group Holdings PLC, , GB;
Abstract
In a shredding machine, oppositely rotating cutter shafts (11a, 11b) are driven by an electric motor (E) through an epicyclic gear mechanism (G) comprising a casing (17) with an internal gear formation (52) and a planet carrier (31) carrying planet gears (34) in mesh with the internal gear formation (52), the motor (E) driving a sun gear (35) in mesh with the planet gears (34), the drive to the cutter shafts (11a, 11b) being from the planet carrier (31). Preferably there are two planet carriers (31, 37), the planet gears (33) of the second carrier (37) being driven by a sun gear (32) driven by the first planet carrier (31), the cutter shafts (11a, 11b) being driven from the second planet carrier (37). One of the shafts (11b) is driven directly, and the other (11a) through further gearing (66, 38). The casing (17) is mounted for limited movement under high load, a switch (90) being provided to detect such movement, to stop or reverse the motor (E).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile