Patent ID: 8561640

Claim:
A hydraulic valve comprising: an inlet port for receiving a pressurized hydraulic fluid; an outlet port for expelling the hydraulic fluid; a displaceable spool element for blocking and unblocking a flow path between the inlet and outlet ports; a latching mechanism for displacing the spool element in response to a pressure surge from the hydraulic fluid; and, a first elastic element and a second elastic element, wherein: the first elastic element urges the spool element into a position blocking the flow path and the second elastic element urges the latching mechanism to displace the spool element into a position out of the flow path; and, the latching mechanism comprises: a tooth ring; a retainer disposed proximate the second elastic element and with a toothed portion for rotational engagement with the tooth ring; and, a plunger disposed proximate the spool element and with a toothed portion for rotational engagement with the tooth ring, and wherein the retainer and plunger are in mating engagement.