US4861684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical safety system for batteries
Assignee: Individual
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Filing: 1988-07-21
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Granted: 1989-08-29
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Expires: 2008-07-21
Abstract
Abstract In this invention for totally eliminating the fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft use, a weighted disconnect link is connected to an internal battery cell jumper. This link is arranged to bridge the center two cells of the battery by positioning the weighted link into the spring clips of the cell bridge lugs, thus completing the circuit within the battery. The section of the battery that houses the weighted link will be totally isolated from the electrolyte and explosive gas. An access door is provided in the battery for contact cleaning and maintenance if it should be necessary. This door provides a means to re-engage the link manually after it has been tripped by adequate G force. The G force is the key to the functioning of the system. When a sudden force is applied to the battery (a force strong enough to cause structural damage to the vehicle in which the battery is installed), the weighted link will displace itself, removing all electrical potential from the battery terminals and attached wiring. The link will tend to disengage the instant an adequate force is applied, and since only a very short distance is required to effectively open the internal circuit, all power will be removed from the terminals and the wiring before the frame becomes distorted to the extent necessary to cause major structural damage, shorting of high amperage electrical wiring and possible subsequent fire.
Inventors
- 👤 Dwight D. Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:41
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/48; H01M50/00; H01M50/50; H01M50/572; H01M50/574; H01M50/579; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S439/00; Y10S439/952
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
99 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft having a pair of spaced positive and negative terminals, a plunge, a shaft means in said battery connected to said plunger for manually opening the internal circuit of said battery, said battery having at least a pair of cells with a cell bridge lug means connected between said pair of cells, spring clip means connected to said cell bridge means, and a weighted disconnect link means bridging said pair of cells of said battery and coupled to said spring clip means.
Claim 2
Independent Claim
99 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft having a pair of spaced positive and negative terminals, a plunge, a shaft means in said battery connected to said plunger for manually opening the internal circuit of said battery, said battery having at least a pair of cells with a cell bridge lug means connected between said pair of cells, spring clip means connected to said cell bridge means, and a weighted disconnect link means bridging said pair of cells of said battery and coupled to said spring clip means.
Claim 3
Dependent Claim
39 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 1, and additionally said weighted disconnect link means being totally isolated from the electrolyte and explosive gas.
Claim 4
Dependent Claim
37 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 1, wherein said weighted disconnect link means being isolated from the electrolyte and explosive gas.
Claim 5
Dependent Claim
34 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 3, and door means for access to the interior of said battery.
Claim 6
Dependent Claim
72 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 1, wherein said battery has a plurality of pairs of cells, with cell bridge means connected between said respective pairs of cells, engaging means connected to said cell bridge means, and a weighted disconnect means bridging a respective pair of cells of said battery and coupled to said engaging means.
Claim 7
Dependent Claim
46 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 5, said battery having a plurality of cells, said weighted disconnect means being totally isolated from the electrolyte and explosive gas of said battery.
Claim 8
Dependent Claim
39 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 6, wherein said battery has an access port for an entrance to the interior of said battery.
Claim 9
Dependent Claim
32 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 6, wherein said battery has a pair of spaced terminals.
Claim 10
Dependent Claim
42 words
A system for totally eliminating fire and/or electrical hazards associated with maintaining batteries for both automobiles and aircraft as recited in claim 6, and said shaft means in said battery operate in unison to manually open the internal circuit of said battery.
Claim 11
Independent Claim
87 words
A system for minimizing fire and/or electrical hazards associated with power plants for both automobiles and aircraft, comprising, a pair of spaced positive and negative terminals, a plunger, a shaft means in said power plant connected to said plunger for manually opening the internal circuit of said power plant, said battery having a pair of cells with bridge means therebetween, spring means connected to said bridge means, and a weight means bridging the said pair of cells of said power means and coupled to said spring means.
Claim 12
Independent Claim
87 words
A system for minimizing fire and/or electrical hazards associated with power plants for both automobiles and aircraft, comprising, a pair of spaced positive and negative terminals, a plunger, a shaft means in said power plant connected to said plunger for manually opening the internal circuit of said power plant, said battery having a pair of cells with bridge means therebetween, spring means connected to said bridge means, and a weight means bridging the said pair of cells of said power means and coupled to said spring means.
Claim 13
Dependent Claim
40 words
A system for minimizing fire and/or electrical hazards associated with power plants for both automobiles and aircraft as recited in claim 10, and additionally said weight means being totally isolated from the electrolyte and explosive gas of said power plant.
Claim 14
Independent Claim
109 words
A system for minimizing fire and/or electrical hazards associated with power plants for both automobiles and aircraft, comprising, a pair of spaced positive and negative terminals connected to said power plant, plunger means, means in said power plant connected to said plunger means for opening the circuit of said power plant, a pair of cells in said power plant, a bridge means therebetween said pair of cells, spring means connected to said bridge means, and a weighted means bridging said pair of cells of said power plant and coupled to said spring means, said weighted means being totally isolated from the electrolyte and explosive gas of said power plant.
Claim 15
Independent Claim
109 words
A system for minimizing fire and/or electrical hazards associated with power plants for both automobiles and aircraft, comprising, a pair of spaced positive and negative terminals connected to said power plant, plunger means, means in said power plant connected to said plunger means for opening the circuit of said power plant, a pair of cells in said power plant, a bridge means therebetween said pair of cells, spring means connected to said bridge means, and a weighted means bridging said pair of cells of said power plant and coupled to said spring means, said weighted means being totally isolated from the electrolyte and explosive gas of said power plant.
Claim 16
Independent Claim
82 words
A system for totally minimizing fire and/or electrical hazards associated with maintaining power plant for both automobiles and aircraft, comprising, a power plant having at least a pair of cells with bridge means therebetween, plunger means, means in said power plant connected to said plunger means for opening the circuit of said power plant engaging means connected to said bridge means, and a weighted disconnect means bridging the said pair of cells of said power plant and coupling to said engaging means.
Claim 17
Independent Claim
82 words
A system for totally minimizing fire and/or electrical hazards associated with maintaining power plant for both automobiles and aircraft, comprising, a power plant having at least a pair of cells with bridge means therebetween, plunger means, means in said power plant connected to said plunger means for opening the circuit of said power plant engaging means connected to said bridge means, and a weighted disconnect means bridging the said pair of cells of said power plant and coupling to said engaging means.
Claim 18
Dependent Claim
41 words
A system for totally minimizing fire and/or electrical hazards associated with maintaining power plants for both automobiles and aircraft as recited in claim 13, said weighted disconnect means being totally isolated from the electrolyte and explosive gas of said power plant.
Claim 19
Dependent Claim
36 words
A system for totally eliminating fire and/or electrical hazards associated with power plants for both automobiles and aircraft as recited in claim 14, and additionally an entrance door means to the interior of said power plant.
Claim 20
Dependent Claim
33 words
A system for totally minimizing fire and/or electrical hazards associated with power plants for both automobiles and aircraft as recited in claim 14, wherein said power plant has a pair of spaced terminals.
Claim 21
Dependent Claim
57 words
A system for totally minimizing fire and/or electrical hazards associated with maintaining power plants for both automobiles and aircraft as recited in claim 14, said plunger, and means includes a plunger said means in said power plant connected to said plunger means includes a shaft wherein the internal circuit of said power plant can be manually opened.
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) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |