Fire extinguishers – Sprinkler heads
Reexamination Certificate
2004-04-21
2008-07-08
Gorman, Darren W (Department: 3752)
Fire extinguishers
Sprinkler heads
C169S020000, C169S057000, C169S058000, C137S068190, C137S068220
Reexamination Certificate
active
07395868
ABSTRACT:
An apparatus for blocking a medium flow passage in a spray head has a blocking element in the passage that, when unbroken, blocks the passage of medium from a first side having a first pressure to a second side having a second pressure. A supporting element is on that side of the blocking element where the pressure is lower, the supporting element being movable between a first position where the supporting element supports the blocking element so that it cannot be ruptured and a second position where the supporting element does not so support the blocking element.
REFERENCES:
patent: 1836528 (1931-12-01), Dyson
patent: 3647109 (1972-03-01), Hebblewaite
patent: 3834463 (1974-09-01), Allard et al.
patent: 4896728 (1990-01-01), Wolff et al.
patent: 5639029 (1997-06-01), Sundholm
patent: 5967239 (1999-10-01), Sprakel et al.
patent: 6318474 (2001-11-01), Sundholm
patent: 6732808 (2004-05-01), Sprakel
patent: 7032681 (2006-04-01), Sprakel
patent: 2 003 591 (1970-09-01), None
patent: 33 22 543 (1984-03-01), None
patent: 34 44 486 (1986-06-01), None
patent: 199 48 324 (2001-04-01), None
patent: 03/089065 (2003-10-01), None
Metzger Harry
Sundholm Göoran
Gorman Darren W
Ladas and Parry LLP
Marioff Corporation Oy
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