Patent US4800372A successfully refreshed from Google Patents.
US4800372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flood alarm
Assignee: Individual
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Filing: 1986-11-17
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Granted: 1989-01-24
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Expires: 2006-11-17
Abstract
Abstract A mercury activated float switch is selectively positioned within a slot formed along an axial length of a perforated pipe. The pipe is vertically mounted to a weighted base, and the switch may be slid along the slot to adjust its operable height. The float member is pivotally mounted within the pipe and closes the associated switch when a preselected water level is detected. The closed switch then activates at least one type of alarm, such as an alarm bell or light, and may also be utilized to activate a transmitter which sends a signal to remotely positioned receiver.
Inventors
- 👤 John H. Poteet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:17
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/18; G08B21/182
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
A float actuated alarm system, comprising: a. float switch support means comprising a conduit vertically attached to a weighted base structure, said conduit including a through-extending axially aligned slot, said conduit further including a plurality of through-extending apertures, said slot and said apertures allowing a flow of water in and out of said conduit; b. float switch means slidably mounted in said slot so as to permit heightwise adjustment of said float switch means, thereby to detect preselected liquid levels; and, c. alarm means operably activated by said float switch means, said alarm means including a battery powered alarm bell.
Claim 2
Dependent Claim
100 words
A float actuated alarm system, comprising: a. float switch support means comprising a conduit vertically attached to a weighted base structure, said conduit including a through-extending axially aligned slot, said conduit further including a plurality of through-extending apertures, said slot and said apertures allowing a flow of water in and out of said conduit; b. float switch means slidably mounted in said slot so as to permit heightwise adjustment of said float switch means, thereby to detect preselected liquid levels; and, c. alarm means operably activated by said float switch means, said alarm means including a battery powered alarm bell.
Claim 3
Dependent Claim
100 words
A float actuated alarm system, comprising: a. float switch support means comprising a conduit vertically attached to a weighted base structure, said conduit including a through-extending axially aligned slot, said conduit further including a plurality of through-extending apertures, said slot and said apertures allowing a flow of water in and out of said conduit; b. float switch means slidably mounted in said slot so as to permit heightwise adjustment of said float switch means, thereby to detect preselected liquid levels; and, c. alarm means operably activated by said float switch means, said alarm means including a transmitter and receiver system.
Claim 4
Dependent Claim
100 words
A float actuated alarm system, comprising: a. float switch support means comprising a conduit vertically attached to a weighted base structure, said conduit including a through-extending axially aligned slot, said conduit further including a plurality of through-extending apertures, said slot and said apertures allowing a flow of water in and out of said conduit; b. float switch means slidably mounted in said slot so as to permit heightwise adjustment of said float switch means, thereby to detect preselected liquid levels; and, c. alarm means operably activated by said float switch means, said alarm means including a transmitter and receiver system.
Claim 5
Dependent Claim
19 words
The float actuated alarm system of claim 1, wherein said alarm means further includes a transmitter and receiver system.
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) | 1992-01-24 | 1992-07-25 | 1993-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-24 | 1996-07-25 | 1997-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-24 | 2000-07-25 | 2001-01-24 | $7700.00 | Window Closed / Lapsed |