Rotary sprinkler with riser damping
AssigneeHunter Industries, Inc.
InventorMatthew Grant Beutler
Life of this patent
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Abstract
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.
Claims20
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;
- and
- shock absorbing means mounted on said riser for damping movement of said riser to a bottomed condition of said retraction spring.
A sprinkler unit having riser damping, 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;
- and
- a shock absorbing elastic band on said riser between said riser and said retraction spring for damping movement of said riser to a bottomed condition of said retraction spring.
Dependencies are inferred from the claim text.