Fluid sprinkling – spraying – and diffusing – Including valve means in flow line
Reexamination Certificate
2007-06-05
2007-06-05
Hwu, Davis (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
C239S581100, C239S537000, C239S200000, C239S201000, C239S203000, C239S204000
Reexamination Certificate
active
10015588
ABSTRACT:
A flow shut off or throttling valve is provided in a sprinkler nozzle housing to enable a nozzle to be changed without having to turn off a flow pressure source. The valve intersects a flow path through the nozzle housing and has an opening such that when the opening is aligned with the flow path, a flow stream can flow unobstructed through the flow path. The valve is movable between a fully open position in which the opening is aligned with the flow path and a closed position which blocks the flow stream from flowing to a nozzle disposed at an outlet passage of the flow path. The valve may be constructed to be either slidable or rotatable between the two positions, and is actuated by a gearing arrangement which is operable at the exterior of the nozzle housing. The external valve actuator may function as a physical barrier to retain the removable nozzle in the nozzle housing when the valve is open and to disengage the nozzle when the valve is closed.
REFERENCES:
patent: 2601559 (1952-06-01), Riblet
patent: 2729504 (1956-01-01), Zukas
patent: 3323725 (1967-06-01), Hruby, Jr.
patent: 3383047 (1968-05-01), Hauser
patent: 3715078 (1973-02-01), Reynolds
patent: 3729141 (1973-04-01), Cornelius
patent: 4417691 (1983-11-01), Lockwood
patent: 4538762 (1985-09-01), Lemkin
patent: 4562962 (1986-01-01), Hartman
patent: 4624412 (1986-11-01), Hunter
patent: 4681260 (1987-07-01), Cochran
patent: 4729511 (1988-03-01), Citron
patent: 4796804 (1989-01-01), Weiss
patent: 4840312 (1989-06-01), Tyler
patent: 4892252 (1990-01-01), Bruninga
patent: 5086977 (1992-02-01), Kah, Jr.
patent: 5098021 (1992-03-01), Kah, Jr.
patent: 5226599 (1993-07-01), Lindermeir et al.
patent: 5234169 (1993-08-01), McKenzie
patent: 5335857 (1994-08-01), Hagon
patent: 5377914 (1995-01-01), Christen
patent: 5417370 (1995-05-01), Kah, Jr.
patent: 5465752 (1995-11-01), Higgins
patent: 5762270 (1998-06-01), Kearby et al.
patent: 5826797 (1998-10-01), Kah, III
patent: 5975430 (1999-11-01), Larsen
patent: 6026845 (2000-02-01), Walrath et al.
patent: 6085995 (2000-07-01), Kah, Jr. et al.
patent: 6109293 (2000-08-01), Walrath et al.
patent: 6202683 (2001-03-01), Smith
patent: 6241158 (2001-06-01), Clark et al.
patent: 6732950 (2004-05-01), Ingham, Jr. et al.
patent: 6802458 (2004-10-01), Gregory
Letter dated Apr. 18, 2006 from John D. Bauersfeld, Esq. of Fitch, Even, Tabin & Flannery to Carl (“Chip”) L.C. Kah, III of K-Rain Manufacturing Corporation, 2 pages.
Kah, III Carl
Kah, Jr. Carl
Hwu Davis
Ostrolenk Faber Gerb & Soffen, LLP
LandOfFree
Rotary drive sprinkler with flow control and shut off valve... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary drive sprinkler with flow control and shut off valve..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary drive sprinkler with flow control and shut off valve... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3864083