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:
Sep. 24, 1996
Filed:
Feb. 07, 1995
David W Winship, Effingham, IL (US);
Irwin Seating Company, Grand Rapids, MI (US);
Abstract
A power system is provided for extending and retracting telescopic seating. The power system includes a frame, a drum operably mounted on the frame for rotational and translational movement, and an extendable chain having a first end operably attached to the telescopic seating and a second end operably attached to the drum. A power mechanism is configured to rotate the drum to wrap the extendable chain onto the drum and further is configured to raise the drum as the extendable chain is wound onto the .drum and takes up space thereon. Still further, the power mechanism is configured to lower the drum as the extendable chain is unwound from the drum and takes up less space thereon. The extendable chain includes interconnected links with wheels that mateably nest adjacent each other in alternating positions as the chain is wound onto the drum.