FRANK A DE BARTOLO
Broker at Del Matro Ave, Des Moines, IA
License number
Iowa B04077000
Issued Date
Feb 14, 1979
Expiration Date
Dec 31, 2015
Type
Broker
Address
Address
6705 Del Matro Ave, Des Moines, IA
Phone
(515) 224-8817 (Work)
Professional information
Trailer Hub Cap Device
US Patent:
3955852, May 11, 1976
Filed:
Feb 10, 1975
Appl. No.:
5/548349
Inventors:
Frank A. De Puydt - Des Moines IA
Eugene P. Conradi - Des Moines IA
Eugene P. Conradi - Des Moines IA
Assignee:
Dico Company, Inc. - Des Moines IA
International Classification:
B60B 2700
US Classification:
301108R
Abstract:
The hub cap device includes a cylindrical housing mountable on the trailer wheel hub and having a spring loaded piston that is movable between defined inner and outer positions. As the hub is filled with grease under pressure through a grease fitting on the piston, the piston is moved to its outer position wherein excess grease is bled to the atmosphere. A manually actuated control means on the hub cap device is adjustable to provide for the spring load being applied to urge the piston to the inner position therefor, when the trailer is to be used at a launching site, and for the spring load being removed from the piston when the trailer is to be used for road travel.