US4926946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pendent style sprinkler with cover
Assignee: Central Sprinkler Corp
•
Filing: 1988-11-08
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Granted: 1990-05-22
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Expires: 2008-11-08
Abstract
Abstract A pendent style sprinkler includes a sprinkler body portion and a plug valve assembly having a sleeve secured to a deflector plate on an outlet side of the sprinkler body portion. A clip is wedged between the sprinkler body portion and the deflector plate. The clip includes a peripheral edge or tab portion projecting radially outwardly beyond a peripheral portion of the sprinkler body portion and a peripheral portion of the deflector plate. A ceiling cover is provided having a central portion adapted to contact the clip peripheral edge portion such that the cover is suspended at the central portion on the peripheral edge portion of the clip.
Inventors
- 👤 George S. Polan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:53
CPC Classifications
A; A62; A62C; A62C37/00; A62C37/08; A62C37/09
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
77 words
Pendent style sprinkler having a sprinkler body portion including an outlet side and a plug valve assembly including a sleeve secured to a deflector plate on said outlet side, comprising: a clip wedged between said sprinkler body portion and said deflector plate, said clip having a peripheral edge portion, and a ceiling cover having a central portion adapted to contact said clip peripheral edge portion such that said cover is suspended on said clip peripheral edge portion.
Claim 2
Dependent Claim
77 words
Pendent style sprinkler having a sprinkler body portion including an outlet side and a plug valve assembly including a sleeve secured to a deflector plate on said outlet side, comprising: a clip wedged between said sprinkler body portion and said deflector plate, said clip having a peripheral edge portion, and a ceiling cover having a central portion adapted to contact said clip peripheral edge portion such that said cover is suspended on said clip peripheral edge portion.
Claim 3
Dependent Claim
45 words
Pendent style sprinkler according to claim 1 wherein said cover is provided with an annular flange portion extending generally radially outwardly of said central portion, and a conical, slotted portion extending away from a side of said annular flange portion generally opposite said central portion.
Claim 4
Dependent Claim
46 words
Pendent style sprinkler according to claim 2 further comprising a thermal transfer means projecting outwardly from said deflector plate for opening said pendent sprinkler when heated, and said cover conical portion generally encompassing said thermal transfer means and having a plurality of open slots extending therethrough.
Claim 5
Dependent Claim
39 words
Pendent style sprinkler according to claim 3 wherein said plurality of slots covers about 45% or more of the surface of said conical portion and wherein said conical portion has an axial height of about 1/4 inch or more.
Claim 6
Dependent Claim
33 words
Pendent style sprinkler according to claim 1 wherein said clip has at least one resiliently deflectable wedge means for wedging and retaining said clip between said sprinkler body portion and said deflector plate.
Claim 7
Dependent Claim
33 words
Pendent style sprinkler according to claim 1 wherein said clip includes a pair of arms, each arm being provided with a resiliently deflectable finger for locating said clip with respect to said sleeve.
Claim 8
Dependent Claim
46 words
Pendent style sprinkler according to claim 1 wherein said cover central portion is generally cylindrical and is provided with an internal surface having a plurality of spaced ribs, said cover and said clip being dimensioned such that said clip peripheral edge portion seats between adjoining ribs.
Claim 9
Dependent Claim
46 words
Pendent style sprinkler according to claim 7 wherein at least a portion of said clip resiliently deflects when said clip peripheral edge portion is contacted by portions of said internal surface thereby facilitating slip fitting of said central portion of said cover over said deflector plate.
Claim 10
Dependent Claim
126 words
Pendent style sprinkler comprising: a sprinkler body portion including an outlet side for discharging a fire quenching fluid; a plug valve movable with respect to said sprinkler body portion for opening said sprinkler when said sprinkler is heated, a portion of said plug valve extending from said outlet side of said sprinkler body portion when said sprinkler is closed; a clip wedged between said sprinkler body portion and said portion of said plug valve so as to separate from said sprinkler body portion and said plug valve portion when said plug valve moves to open said sprinkler; and a cover having a central portion contacting a peripheral edge portion of said clip such that said cover is suspended from said peripheral edge portion of said clip.
Claim 11
Dependent Claim
126 words
Pendent style sprinkler comprising: a sprinkler body portion including an outlet side for discharging a fire quenching fluid; a plug valve movable with respect to said sprinkler body portion for opening said sprinkler when said sprinkler is heated, a portion of said plug valve extending from said outlet side of said sprinkler body portion when said sprinkler is closed; a clip wedged between said sprinkler body portion and said portion of said plug valve so as to separate from said sprinkler body portion and said plug valve portion when said plug valve moves to open said sprinkler; and a cover having a central portion contacting a peripheral edge portion of said clip such that said cover is suspended from said peripheral edge portion of said clip.
Claim 12
Dependent Claim
25 words
Pendent style sprinkler according to claim 9 wherein said clip is resiliently wedged between said sprinkler body portion and said portion of said plug valve.
Claim 13
Dependent Claim
34 words
Pendent style sprinkler according to claim 9 wherein said cover includes a portion extending across one end of said central portion and concealing said portion of said plug valve extending from said outlet side.
Claim 14
Dependent Claim
15 words
Pendent style sprinkler according to claim 11 wherein said portion of said cover is slotted.
Claim 15
Dependent Claim
31 words
Pendent style sprinkler according to claim 12 wherein said portion of said cover is generally conical and wherein said conical portion has an axial height of about one-quarter inch or more.
Claim 16
Dependent Claim
31 words
Pendent style sprinkler according to claim 13 further comprising thermal transfer means projecting outwardly from said plug valve towards said conical portion of said cover for opening said sprinkler when heated.
Claim 17
Dependent Claim
28 words
Pendent style sprinkler according to claim 14 wherein said conical portion is slotted and said slots cover about 45% or more of the surface of said conical portion.
Claim 18
Dependent Claim
27 words
Pendent style sprinkler according to claim 11 further comprising thermal transfer means projecting outwardly from said plug valve towards said cover for opening said sprinkler when heated.
Claim 19
Dependent Claim
61 words
Pendent style sprinkler according to claim 9 wherein said portion of said plug valve extending from said outlet side of said sprinkler body includes deflector means for deflecting fire quenching fluid radially outwardly from the sprinkler when said sprinkler is opened and wherein said clip is wedged between said sprinkler body portion and said deflector means portion of said plug valve.
Claim 20
Dependent Claim
40 words
Pendent style sprinkler according to claim 17 further comprising retainer means coupled with said sprinkler body and said deflector means for supporting said deflector means at an extended position spaced away from the sprinkler body when the sprinkler is opened.
Claim 21
Dependent Claim
26 words
Pendent style sprinkler according to claim 17 wherein said cover includes a portion extending across one end of said central portion and covering said deflector means.
Claim 22
Dependent Claim
41 words
Pendent style sprinkler according to claim 10 wherein at least a portion of said clip resiliently deflects when said clip peripheral edge portion is contacted by portions of said central portion thereby facilitating slip fitting of said cover onto said clip.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |