Douglas A Sowder
Engineers at High Dr, Spokane, WA

License number
Colorado 16809
Issued Date
Dec 14, 1979
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
118 E High Dr, Spokane, WA 99203
LicenseFiles verified this license of Dec 9, 2016 at the Colorado - Department of Regulatory Agencies.

Professional information

Douglas Sowder Photo 1

Biased Sheave Frame For Aerial Tram

US Patent:
4329926, May 18, 1982
Filed:
May 13, 1980
Appl. No.:
6/149443
Inventors:
Tony R. Sowder - Spokane WA
Douglas A. Sowder - Spokane WA
International Classification:
B61B 1206
US Classification:
104179
Abstract:
A compound frame to support a plurality of sheaves on a tower of an aerial tram with a predetermined bias between each sheave and a supported transiting cable. The sheaves are supported in paired opposed groups with each sheave of a group in substantial opposition so that the bias of each group of sheaves provides a safety factor to aid in maintaining a transiting cable therebetween. The manner of biasing paired sheave groups requires minimal forces for greater economy. An associated desheavement annunciating system is disclosed.

Engineers licenses in Colorado