Slasher saw system
OwnerJames F. Wynn, Brian J. Wynninventors
Life of this patent
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Abstract
A slasher saw system connectable to a source of hydraulic power which requires hydraulic lines for power and operation. First, a pressure/power hydraulic line is actuated to turn the saw on and bring the saw down to cut through a stack of timber. Second, the hydraulic pressure/power to bring the saw down is actually provided via back-pressure from a return line returning hydraulic fluid to the source of hydraulic power from the saw. Third, a separate line is used to power the hydraulic cylinder used to raise the saw arm again. Fourth, a separate line including a one-way fluid valve allowing hydraulic fluid flow only from the hydraulic fluid output of the saw blade motor to the hydraulic fluid input for the saw blade motor.
Claims16
A hydraulically powered slasher saw system adapted for a connection by hydraulic lines to a source of hydraulic power, comprising:
- a circular saw blade actuated by a saw blade motor, which the circular saw blade is raised in order to position a load of wood for cutting and lowered to cut through said load of wood;
- a first hydraulic fluid input line conveying hydraulic fluid from between said source of hydraulic power to a fluid input for the saw blade motor for powering said saw blade motor;
- a second hydraulic fluid output line conveying hydraulic fluid from a fluid output of said saw blade motor and back to said source of hydraulic power for recirculating hydraulic fluid from said saw blade motor to said source of hydraulic power;
- a third hydraulic fluid line conveying hydraulic fluid between said source of hydraulic power and a mechanism for raising the circular saw blade by conveying hydraulic fluid input from said source of hydraulic power and for lowering the circular saw blade by releasing hydraulic fluid output from said mechanism;
- and
- a fourth hydraulic fluid line connected by a “T” juncture to said second hydraulic fluid output line and running between said “T” juncture and the mechanism for lowering said saw blade via hydraulic fluid input from said second hydraulic fluid output line:
- and
- a fifth hydraulic fluid line, comprising a one-way fluid valve receiving hydraulic fluid from the fluid output of the saw blade motor prior to the “T” juncture in the second hydraulic fluid line, and conveying said hydraulic fluid to the first hydraulic fluid input line for the saw blade motor, and wherein said one-way fluid valve allows hydraulic fluid to flow only from the hydraulic fluid output of the saw blade motor to the hydraulic fluid input for said saw blade motor.
Dependencies are inferred from the claim text.