Drive system
AssigneeWikel Manufacturing Co. Inc.
InventorRymer H. Smith
Life of this patent
Estimating the term…
Abstract
A vehicle of the type for applying a coating to a surface such as applying a sealant to asphalt pavement, the vehicle including a body having a reservoir for storing and distributing a fluid, two driven wheels disposed in spaced-apart relationship along the longitudinal axis of the body and adapted for continuous engagement with a support surface, one of the driven wheels being dirigible, support wheels disposed laterally of the axis of the body and spaced from the dirigible driven wheel, and variable drive means for driving the driven wheels.
Claims23
A vehicle of the type for applying a coating to a surface such as applying a sealant to asphalt pavement, said vehicle comprising:
- body means including reservoir means for storing and distributing a fluid, two driven wheels disposed in spaced-apart relationship along the longitudinal axis of said body means and adapted for continuous engagement with a support surface, one of said driven wheels being dirigible, support wheels disposed laterally of the longitudinal axis of said body means and spaced from said dirigible driven wheel, and variable drive means for driving said driven wheels.
A driven vehicle comprising:
- body means;
- a pair of driven wheels disposed in spaced-apart relationship along the longitudinal axis of said body means, one of said driven wheels being dirigible;
- a pair of axially aligned support wheels spaced longitudinally from said dirigible driven wheel;
- and drive means for driving said driven wheels, said drive means including a fluid motor in driving engagement with each of said driven wheels, fluid conducting means connecting said fluid motors in series for conducting a motive fluid thereto, fluid pump means for supplying a motive fluid to said fluid motors through said fluid conducting means, and valve means responsive to the pressure increase occasioned by a difference in the respective rotational speeds of said driven wheels for directing a portion of the fluid away from said fluid motor of the slower wheel.
A driven vehicle comprising:
- body means;
- two driven wheels disposed in spaced-apart relationship along the longitudinal axis of said body means and adapted for continuous engagement with a support surface, one of said driven wheels being dirigible, and drive means for driving said driven wheels, said drive means being variable and adapted to automatically compensate for differences in the rotational speed of said driven wheels, said drive means including a fluid motor in driving engagement with each of said driven wheels, fluid pump means for supplying a motive fluid to said fluid motors, fluid conducting means connecting said fluid motors in series for conducting the motive fluid thereto from said fluid pump means, and valve means responsive to the fluid pressure increase between said fluid motors occasioned by a difference in respective rotational speeds of said driven wheels for directing at least a portion of the motive fluid away from said fluid motor of said slower driven wheel.
Dependencies are inferred from the claim text.