Fluid sprinkling – spraying – and diffusing – With fixed support for or ground installed supply means – Embedded or buried sprinkler
Patent
1999-03-31
2000-12-05
Recla, Henry J.
Fluid sprinkling, spraying, and diffusing
With fixed support for or ground installed supply means
Embedded or buried sprinkler
239206, 239232, 239251, 239255, 2392633, B05B 1510
Patent
active
061554936
ABSTRACT:
A closed-case impact sprinkler unit having an outer case and an internally positioned riser sleeve that is upwardly extendable into a pop-up position. The riser sleeve may be formed with an external surface that is complimentary to the internal surface of the outer case to prevent the introduction of debris into the interior region of the outer case when the riser sleeve is in a pop-up position. The sprinkler unit may further include a closed-case turret assembly rotatably mounted on the riser sleeve that includes a fluid outlet and a compact impact sprinkler arm. The sprinkler unit may include a dual-stage riser spring assembly to delay deployment of the impact sprinkler arm having a first riser spring that is compressed when a fluid enters the interior region of the outer casing to move the riser sleeve in a relatively upward direction, and a second riser spring that is compressed upon compression of the first riser spring to disengage a valve assembly that permits the flow of fluid and activation of the sprinkler. The invention further provides a trip assembly that includes an elongated actuator opening and a trip pin pivotally mounted within the actuator opening to allow lateral movement of the trip pin which initiates a delayed reversal of the trip assembly upon contact with a trip to provide an extended sprinkling range.
REFERENCES:
patent: 3602431 (1971-08-01), Lockwood
patent: 3625429 (1971-12-01), Turrell
patent: 3765608 (1973-10-01), Lockwood
patent: 3799631 (1974-03-01), Martina
patent: 3930617 (1976-01-01), Dunmire
patent: 3937494 (1976-02-01), Hicks
patent: 4055304 (1977-10-01), Munson
patent: 4103828 (1978-08-01), Ridgway
patent: 4164324 (1979-08-01), Bruninga
patent: 4182494 (1980-01-01), Wichman et al.
patent: 4432495 (1984-02-01), Bruninga
patent: 4634052 (1987-01-01), Grizzle et al.
patent: 4753391 (1988-06-01), Rogers
patent: 4773595 (1988-09-01), Livne
patent: 4796809 (1989-01-01), Hunter
patent: 5098021 (1992-03-01), Kah, Jr.
patent: 5765757 (1998-06-01), Bendall
Han Joseph U.
Kearby Don Michael
Kendall Giles A.
Wright Derick C.
Nguyen Tuan
Recla Henry J.
Virtual rain, Inc.
LandOfFree
Closed-case impact sprinklers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closed-case impact sprinklers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed-case impact sprinklers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-953507