DOUGLAS EDWARD SCHENK
Pilots at Wynnwood Ave, Tonawanda, NY
License number
New York A2171575
Issued Date
Jan 2017
Expiration Date
Jul 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
106 Wynnwood Ave, Tonawanda, NY 14150
Professional information
Microprocessor-Controlled Hoist System
US Patent:
4636962, Jan 13, 1987
Filed:
May 24, 1983
Appl. No.:
6/497723
Inventors:
Robert H. Broyden - Williamsville NY
Douglas E. Schenk - Tonawanda NY
Raymond A. Newman - Cheektowaga NY
Douglas E. Schenk - Tonawanda NY
Raymond A. Newman - Cheektowaga NY
Assignee:
Columbus McKinnon Corporation - Amherst NY
International Classification:
G06F 1520, B66D 148
US Classification:
364478
Abstract:
Load position limits and incremental lowering of a load are controlled by a microprocessor forming an interface between an operator's control station and the hoist. Other hoist status conditions such as underspeed and overspeed of the hoist motor are detected by the microprocessor based upon hoist speed during the position limit setting cycle. Still other hoist status data such a motor overheating, number of power-up cycles, number of under and overspeed shut-downs, number of power failures, etc. are input to the microprocessor and all such data as up-dated are entered into a non-volatile memory which, when extracted, permits maintenance scheduling.