Patent US487127A successfully refreshed from Google Patents.
Patent US3726344A successfully refreshed from Google Patents.
US3726344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically actuated sprinkler
Assignee: S R PROD Inc
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Filing: 1971-04-26
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Granted: 1973-04-10
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Expires: 1991-04-26
Abstract
Abstract An electrically responsive heat generating device for use with existing thermally sensitive sprinkler heads for individually or collectively activating the sprinkler heads in response to electrical stimuli from smoke detectors, heat detectors or other alarm circuits. The sprinkler release incorporates a mounting bracket to overfit the sprinkler head body or other fixed construction to position a heat generating device to impinge adequate heat upon the sprinkler fusible elements to activate the sprinkler head.
Inventors
- 👤 A Rothman
- 👤 J Semple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:14
CPC Classifications
A; A62; A62C; A62C37/00; A62C37/08; A62C37/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
147 words
In an electrically actuated sprinkler head release, adapted for use with an individual sprinkler head having a fusible element, a body and a water deflector the combination of A. mounting means for positioning the release in proximity to the sprinkler head 1. said mounting means being of configuration to assure firm mounting of release, 2. said release having a forward portion and a rearward portion, said mounting means directing the forward portion of the release toward the sprinkler head at the said fusible element thereof; and B. heat generating means associated with the said mounting means, 1. said heat generating means being capable of generating sufficient heat to melt said sprinkler head fusible element, 2. said heat generating means being positioned within said release, 3. said heat generating means including a jacket having sidewalls, a forward end wall and a heat generating composition contained within the jacket.
Claim 2
Dependent Claim
147 words
In an electrically actuated sprinkler head release, adapted for use with an individual sprinkler head having a fusible element, a body and a water deflector the combination of A. mounting means for positioning the release in proximity to the sprinkler head 1. said mounting means being of configuration to assure firm mounting of release, 2. said release having a forward portion and a rearward portion, said mounting means directing the forward portion of the release toward the sprinkler head at the said fusible element thereof; and B. heat generating means associated with the said mounting means, 1. said heat generating means being capable of generating sufficient heat to melt said sprinkler head fusible element, 2. said heat generating means being positioned within said release, 3. said heat generating means including a jacket having sidewalls, a forward end wall and a heat generating composition contained within the jacket.
Claim 3
Dependent Claim
41 words
said release having a forward portion and a rearward portion, said mounting means directing the forward portion of the release toward the sprinkler head at the said fusible element thereof; and B. heat generating means associated with the said mounting means,
Claim 4
Dependent Claim
41 words
said release having a forward portion and a rearward portion, said mounting means directing the forward portion of the release toward the sprinkler head at the said fusible element thereof; and B. heat generating means associated with the said mounting means,
Claim 5
Dependent Claim
9 words
said heat generating means being positioned within said release,
Claim 6
Dependent Claim
9 words
said heat generating means being positioned within said release,
Claim 7
Dependent Claim
19 words
The invention of claim 1 wherein the jacket is cylindrically formed and the heat generating composition is cylindrically formed.
Claim 8
Dependent Claim
24 words
The invention of claim 1 wherein the forward end wall is provided with an opening, the said opening being covered by a fusible seal.
Claim 9
Dependent Claim
22 words
said heat generating means including a jacket having sidewalls, a forward end wall and a heat generating composition contained within the jacket.
Claim 10
Dependent Claim
22 words
said heat generating means including a jacket having sidewalls, a forward end wall and a heat generating composition contained within the jacket.
Claim 11
Dependent Claim
25 words
The invention of claim 3 wherein the said heat generating means define an interior passage, the said passage being axially aligned with the said opening.
Claim 12
Dependent Claim
25 words
The invention of claim 4 wherein heat generated by the heat generating means exits the jacket through the opening and impinges upon the fusible element.
Claim 13
Dependent Claim
51 words
The invention of claim 1 wherein the mounting means comprise a mounting bracket which integrally incorporates a pair of mounting arms and a heat generating means support bar, said mounting arms being secured to the said sprinkler head body and said release being carried by the heat generating means support bar.
Claim 14
Dependent Claim
41 words
The invention of claim 1 wherein the mounting means comprise a mounting arm and an integral support bar, said mounting arm being secured to the water deflector and depending therefrom and the said release being carried by the said support bar.
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |