US4136381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dc trouble lamp
Assignee: Individual
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Filing: 1977-06-02
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Granted: 1979-01-23
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Expires: 1997-06-02
Abstract
Abstract A combination trouble lamp and emergency flasher which is adapted to be connected directly to the terminals of a vehicle battery. The device comprises an adaptor cable having a pair of spring biased battery clamps which connect to a female twist-to-lock connector through a pair of heavy gauge insulated cables. The lamp comprises a housing having a socket in which a DC electric light bulb is received, an arcuate reflector made of a highly visible translucent plastic material behind the bulb, and a protective cage hingedly connected to the reflector and positioned in front of the bulb. The lamp includes a relatively long, light gauge power cord which terminates in a male twist-to-lock plug adapted for connection to the receptacle of the adaptor leads. A flasher unit selectively inserted into an external receptacle within the housing causes the bulb to blink on and off and this will appear as a flashing, colored light source when viewed from behind the translucent shade so that the lamp may also serve as an emergency signal light. In another embodiment, the adaptor leads have a dual socket connector so that another pair of battery clamps may be connected thereto for the purpose of jumping a disabled vehicle yet permitting the lamp to remain plugged in.
Inventors
- 👤 Everett W. Bone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:43
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/50; B60Q1/52; B60Q7/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
172 words
A DC trouble lamp comprising: a housing having a handle portion, an electric light bulb socket in said housing having a direct current light bulb received therein, a curved translucent shade connected to said housing and being positioned behind said bulb, said shade being of a highly visible color, a protective cage being positioned in front of said bulb, a hook secured to said lamp, a power cord electrically connected to said socket for supplying electric current thereto, a pair of heavy gauge insulated electrical leads each terminating in a spring biased, manually operated battery terminal clamp at one end thereof, first and second cooperating separable connectors electrically connected respectively to one end of said power cord and to the free ends of said leads, said connectors including means for positively locking them together, said power cord being of a substantially lighter gauge and of a substantially longer length than said leads, and selectively operable flasher means in said housing for periodically interrupting the supply of electric current to said light bulb.
Claim 2
Dependent Claim
172 words
A DC trouble lamp comprising: a housing having a handle portion, an electric light bulb socket in said housing having a direct current light bulb received therein, a curved translucent shade connected to said housing and being positioned behind said bulb, said shade being of a highly visible color, a protective cage being positioned in front of said bulb, a hook secured to said lamp, a power cord electrically connected to said socket for supplying electric current thereto, a pair of heavy gauge insulated electrical leads each terminating in a spring biased, manually operated battery terminal clamp at one end thereof, first and second cooperating separable connectors electrically connected respectively to one end of said power cord and to the free ends of said leads, said connectors including means for positively locking them together, said power cord being of a substantially lighter gauge and of a substantially longer length than said leads, and selectively operable flasher means in said housing for periodically interrupting the supply of electric current to said light bulb.
Claim 3
Dependent Claim
25 words
The trouble lamp of claim 1 wherein said electrical connectors include means whereby locking is achieved by relative rotation of said connectors in opposite directions.
Claim 4
Dependent Claim
65 words
The trouble lamp of claim 1 further including: a second pair of heavy gauge electrical leads each terminating in a spring biased, manually operated battery terminal clamp at one end and a third electrical connector at the other end thereof, said second connector includes means for electrically connecting said third connector to said first mentioned leads, said third connector being separable from said second connector.
Claim 5
Dependent Claim
25 words
The trouble lamp of claim 3 wherein said power cord is approximately No. 18 gauge wire and said leads are approximately No. 10 gauge wire.
Claim 6
Dependent Claim
164 words
A DC trouble lamp comprising: a housing having a handle portion, an electric light bulb socket in said housing having a direct current bulb received therein, a translucent shade connected to said housing and being positioned behind said bulb, said shade being of a highly visible color, a protective cage being positioned in front of said bulb, a power cord electrically connected to said socket for supplying electric current thereto, a pair of spring biased, manually operated battery terminal clamps electrically connected to said power cord, manually operable switch means in series with said socket, an external open circuit receptacle in series with said socket, said receptacle including two recessed contact elements electrically connected respectively to said power cord and said socket, and a protective cover for said receptacle being separable therefrom and having means comprising a pair of electrically short-circuited contact blades adapted to be inserted into said receptacle and make electrical contact with said recessed contact elements thereby electrically bridging said receptacle.
Claim 7
Dependent Claim
164 words
A DC trouble lamp comprising: a housing having a handle portion, an electric light bulb socket in said housing having a direct current bulb received therein, a translucent shade connected to said housing and being positioned behind said bulb, said shade being of a highly visible color, a protective cage being positioned in front of said bulb, a power cord electrically connected to said socket for supplying electric current thereto, a pair of spring biased, manually operated battery terminal clamps electrically connected to said power cord, manually operable switch means in series with said socket, an external open circuit receptacle in series with said socket, said receptacle including two recessed contact elements electrically connected respectively to said power cord and said socket, and a protective cover for said receptacle being separable therefrom and having means comprising a pair of electrically short-circuited contact blades adapted to be inserted into said receptacle and make electrical contact with said recessed contact elements thereby electrically bridging said receptacle.
Claim 8
Dependent Claim
55 words
The trouble lamp of claim 5 and including flasher means separable from said receptacle for periodically interrupting the supply of electric current to said socket, said flasher including contact blades adapted to be inserted within said receptacle and make electrical contact with said recessed contact elements whereby said flasher is series connected to said socket.
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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |