Patent US4654667A successfully refreshed from Google Patents.
US4124077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler head with wall penetrating means
Assignee: Individual
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Filing: 1977-05-16
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Granted: 1978-11-07
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Expires: 1997-05-16
Abstract
Abstract A sprinkler head for use in residential areas, or the like, requiring the maintenance of aesthetic appearance, including a bayonet impacted by a spring-biased power sleeve for penetrating an interior ceiling or wall. The power sleeve is restrained in the ready position by a wire cable having a rupturable portion separable by heat or other means controlled by a remote device for sensing an incendiary condition in the space to be fire-protected on the opposite side of the ceiling or wall from the sprinkler head.
Inventors
- 👤 Timothy T. Barge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:36
CPC Classifications
A; A62; A62C; A62C37/00; A62C37/08; A62C37/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
79 words
A sprinkler head for positioning on the opposite side of a penetrable screen from the area to be fire-protected comprising: a supply tube for conveying a fire-extinguishing fluid; means for penetrating and rupturing the screen for dispersion of the fluid from the tube into the area to be protected; means for impacting against said penetrating means; and means for restraining said impacting means in ready position of the sprinkler head, said restraining means including a portion rupturable on command.
Claim 2
Dependent Claim
79 words
A sprinkler head for positioning on the opposite side of a penetrable screen from the area to be fire-protected comprising: a supply tube for conveying a fire-extinguishing fluid; means for penetrating and rupturing the screen for dispersion of the fluid from the tube into the area to be protected; means for impacting against said penetrating means; and means for restraining said impacting means in ready position of the sprinkler head, said restraining means including a portion rupturable on command.
Claim 3
Dependent Claim
23 words
The sprinkler head of claim 1 wherein said screen is an interior wall or ceiling structure and said penetrating means includes bayonet means.
Claim 4
Dependent Claim
42 words
The sprinkler head of claim 2 wherein said supply tube includes a supply end and a discharge end and wherein said bayonet means includes a base portion for blocking the discharge end of the tube in the ready position of the head.
Claim 5
Dependent Claim
28 words
The sprinkler head of claim 3 wherein said impacting means includes a sleeve coaxial with said tube and force means for driving said sleeve against said penetrating means.
Claim 6
Dependent Claim
18 words
The sprinkler head of claim 4 wherein said force means is a coil spring coaxial with said tube.
Claim 7
Dependent Claim
57 words
The sprinkler head of claim 5 also including a fixed base plate adjacent said supply end of said tube and wherein said sleeve includes a flange remote from said bayonet, said sleeve being slidably mounted on said tube and said restraining means includes cable means for tensioning said coil spring between said base plate and said flange.
Claim 8
Dependent Claim
74 words
The sprinkler head of claim 6 also including a plurality of elongated guide rods spaced about and affixed at one end to the base plate, the other ends being unattached, and wherein said flange includes a like plurality of apertures for slidably mounting said sleeve on said elongated rods, said elongated guide rods including abutment means at their unattached ends for limiting the excursion of said sleeve under the force of said coil spring.
Claim 9
Dependent Claim
35 words
The sprinkler head of claim 3 wherein said base portion of said bayonet includes an insert, said discharge end of said tube being force-fitted into said insert in the ready position of the sprinkler head.
Claim 10
Dependent Claim
40 words
The sprinkler head of claim 8 wherein said bayonet is conical and said base portion is circular, the periphery of said base portion surrounding said insert being formed in a plurality of spaced radial lugs for deflecting the fire-extinguishing fluid.
Claim 11
Dependent Claim
63 words
The sprinkler head of claim 9 wherein said penetrating means also includes a plurality of guide rods fixed to and spaced about the periphery of said base portion of said bayonet, said guide rods being slidably mounted in the body of said sleeve for limited movement therein to permit release of said discharge end of said tube from the force-fit with said insert.
Claim 12
Dependent Claim
13 words
The sprinkler head of claim 10 wherein said insert is composed of neoprene.
Claim 13
Dependent Claim
111 words
A sprinkler head system for positioning a sprinkler head on the opposite side of a penetrable screen from the area to be fire-protected, comprising: a supply tube for conveying a fire-extinguishing fluid; means for penetrating and rupturing the screen for dispersion of the fluid from the tube into the area to be protected; means for impacting against said penetrating means; means for restraining said impacting means in the ready position of the sprinkler head, said restraining means including a portion rupturable on command; means for sensing an incendiary condition in the area to be fire-protected; and means responsive to said sensing means for rupturing said rupturable portion of said restraining means.
Claim 14
Dependent Claim
111 words
A sprinkler head system for positioning a sprinkler head on the opposite side of a penetrable screen from the area to be fire-protected, comprising: a supply tube for conveying a fire-extinguishing fluid; means for penetrating and rupturing the screen for dispersion of the fluid from the tube into the area to be protected; means for impacting against said penetrating means; means for restraining said impacting means in the ready position of the sprinkler head, said restraining means including a portion rupturable on command; means for sensing an incendiary condition in the area to be fire-protected; and means responsive to said sensing means for rupturing said rupturable portion of said restraining means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |