US4590543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trilight
Assignee: SILVER RIVER ELECTRONIC Co Ltd 2 FL 443 CHONG-SHAN RD SEC 2 BAN-CHIAU CITY TAIPEI SHIEN TAIWAN ROC A CORP OF TAIWAN ROC
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Filing: 1984-11-05
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Granted: 1986-05-20
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Expires: 2004-11-05
Abstract
Abstract A trilite characterized by comprising a case with a pivoted head, a separable wall holder, a circuit board and other components wherein the light head and body are pivoted together with two pivots and the circuit board has two rechargeable batteries and a CDS so that the ambient illumination will control the illumination of the bulb and the trilite will function as night light, emergency light and spot light.
Inventors
- 👤 Grand Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:47
CPC Classifications
F; F21; F21S; F21S9/00; F21S9/02; F21S9/022; F21L; F21L4/00; F21L4/08; F21S8/00; F21S8/03; F21S8/033; F21S8/035
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
167 words
A trilight operable as a night light, an emergency light and a spotlight, comprising a case consisting of a body and a head pivoted together by two pivots, a separable wall holder having a rectifier and contact springs, a circuit board and a spotlight, the case having two ring pivot bearings with inside grooves, the circuit board consisting of three diodes, two LEDs, seven resistors, three transistors, two rechargeable batteries, one reed relay, one CDS, one bulb, one switch having a first position, a second position and a third position, and two pins for connecting to said contact springs of the wall holder to form a circuit so that the trilight will operate as a night light and an emergency light when said switch is set in said first position, so that the trilight will operate as a spot light when said switch is set in said second position, and so that said batteries will only be charged when said switch is set in said third position.
Claim 2
Dependent Claim
167 words
A trilight operable as a night light, an emergency light and a spotlight, comprising a case consisting of a body and a head pivoted together by two pivots, a separable wall holder having a rectifier and contact springs, a circuit board and a spotlight, the case having two ring pivot bearings with inside grooves, the circuit board consisting of three diodes, two LEDs, seven resistors, three transistors, two rechargeable batteries, one reed relay, one CDS, one bulb, one switch having a first position, a second position and a third position, and two pins for connecting to said contact springs of the wall holder to form a circuit so that the trilight will operate as a night light and an emergency light when said switch is set in said first position, so that the trilight will operate as a spot light when said switch is set in said second position, and so that said batteries will only be charged when said switch is set in said third position.
Claim 3
Dependent Claim
96 words
A trilight operable as a night light, an emergency light, and a spotlight, comprising a case with a pivoted head, a separable charger holder and a circuit; said separable charger holder having an AC adaptor and two contact springs; said circuit having three diodes, two LEDs, seven resistors, three transistors, two rechargeable batteries, a reed relay, a CDS, a bulb, a switch and two pins; said pins being connected to the charger holder; said circuit having the function of a sensor night light through the connection of said transistors and said CDS into an induction control.
Claim 4
Dependent Claim
96 words
A trilight operable as a night light, an emergency light, and a spotlight, comprising a case with a pivoted head, a separable charger holder and a circuit; said separable charger holder having an AC adaptor and two contact springs; said circuit having three diodes, two LEDs, seven resistors, three transistors, two rechargeable batteries, a reed relay, a CDS, a bulb, a switch and two pins; said pins being connected to the charger holder; said circuit having the function of a sensor night light through the connection of said transistors and said CDS into an induction control.
Claim 5
Dependent Claim
59 words
A trilight according to claim 2 wherein said head and said case are connected with two pivots each with a retractable bolt and spring set in both sides of said head and two ring pivot bearings at both sides of said case with several positioning grooves for said bolts pushed by said springs to set on the same plane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |