초록 ▼

A sprinkler unit with riser damping comprises a tubular housing having an inlet for connecting to a source of water, a tubular riser reciprocally mounted in the tubular housing and moveable from a retracted position within the housing to an extended position from the housing, the riser having an out

A sprinkler unit with riser damping comprises a tubular housing having an inlet for connecting to a source of water, a tubular riser reciprocally mounted in the tubular housing and moveable from a retracted position within the housing to an extended position from the housing, the riser having an outlet having a nozzle for distributing a stream of water outward from the housing, a passage connecting the inlet to the outlet, a retraction spring normally biasing the riser to the retracted position, and a shock absorbing ring mounted on the riser for damping movement of the riser to the extended position.

대표청구항 ▼

[ I claim:] [1.] A sprinkler unit comprising:a tubular housing having an inlet for connecting to a source of water;a tubular riser reciprocally mounted in said tubular housing and moveable by water pressure from a retracted position within said housing to an extended position from said housing, said

[ I claim:] [1.] A sprinkler unit comprising:a tubular housing having an inlet for connecting to a source of water;a tubular riser reciprocally mounted in said tubular housing and moveable by water pressure from a retracted position within said housing to an extended position from said housing, said riser having an outlet having a nozzle for distributing a stream of water outward from said housing, and a passage connecting said inlet to said outlet;a retraction spring normally biasing said riser to said retracted position; andshock absorbing means mounted on said riser for damping movement of said riser to a bottomed condition of said retraction spring.