Title: Retractable service ladder

Abstract: A stowable ladder for use on a combine is provided with a spring assisted overcentering linkage that will maintain the foldable ladder in either a deployed status or closed status until significant manual effort overcoming the spring loaded overcentering linkage is induced.

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Inventors: Kindle, John J. (Bettendorf, IA, US)

Application Number: 842446
Filing Date: 1977-10-14
Publication_date: 1978-12-26
Assignee: International Harvester Company (Chicago, IL)
Primary Class(es): 280/166
Other Classes:
US Patent Ref:

2967584	Jan, 1961	Westerlund	182/97.
3554320	Jan, 1971	Egger, Jr. et al.	182/98.

Other Refs: 21111401565792

Sep, 1971	DE
May, 1969	FR

Primary Examiner: Peters, Jr., Joseph F.
Assistant Examiner: Stack, Jr., Norman L.
Attorney: Rudy; Douglas W., Kamp; Ronald C., AuBuchon; F. David