Steerable trailer
OwnerCharles R. Powellinventor
Life of this patent
Estimating the term…
Abstract
A pair of fluid operated cylinder assemblies are secured between the bunk of the trailer and a rear frame portion. An auxiliary motor, a pump driven by the motor, a reservoir, and a valve operated by solenoids to control driving functions for the pair of fluid operated cylinder assemblies is supported on the trailer. Control of the electric motor and the solenoids is accomplished by a switch located in the tractor and connected to the motor and solenoids by electric wires extending between the trailer and the tractor. The solenoids may be operated by radio receivers and remote transmitters rather than by a switch in the tractor.
Claims7
A steerable trailer for hauling elongated loads wherein the load comprises the pulling connection between a pulling tractor and the trailer, comprising
- a. a wheel supported frame,
- b. a bunk pivotally supported on said frame for supporting the rear of the long load and forming the pulling connection for the trailer with the load,
- c. a pair of extendable drive means connected between said bunk and said frame and arranged to pivot said frame relative to said bunk for steering the trailer,
- d. electrical power operated means on said trailer operating said drive means,
- e. and electric circuit control means for said electrical power operated means for selectively controlling the latter.
Dependencies are inferred from the claim text.