Patent ID: 9261113
Filing Date: 2016-02-16
CPC Classification: F15B

Claim Text:
1. A pressurized fluid subassembly comprising: a fluid driven actuator configured to utilize a fluid at a high pressure to change an overall length of the fluid driven actuator; and a sequence valve interposing a low pressure line and a supply line conveying the fluid to the fluid driven actuator, the sequence valve including a first sequence configured to inhibit fluid communication between the supply line and the low pressure line when the fluid at the high pressure is actively supplied to the fluid driven actuator, the sequence valve including a second sequence configured to establish fluid communication between the supply line and the low pressure line when the fluid at the high pressure is not actively supplied to the fluid driven actuator, wherein the sequence valve includes a variable bias that changes depending upon whether the fluid at the high pressure is actively supplied to the fluid driven actuator; wherein the fluid driven actuator comprises a piston and a cylinder, the cylinder and the piston cooperating to define a head side cavity and a rod side cavity that are interposed by a head of the piston; the supply line comprises a head side supply line conveying the fluid to the head side cavity; the supply line comprises a rod side supply line conveying the fluid to the rod side cavity; and, the sequence valve is in fluid communication with the head side supply line conveying the fluid to the head side cavity, the sequence valve is configured to inhibit fluid communication between the head side supply line and the low pressure line when the fluid at the high pressure is actively supplied to the fluid driven actuator, the sequence valve is configured to establish fluid communication between the head side supply line and the low pressure line when the fluid at the high pressure is not actively supplied to the fluid driven actuator.