US5746495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable work light with optical fiber adapter
Assignee: CPS PRODUCTS CANADA Ltd
•
Filing: 1997-02-05
•
Granted: 1998-05-05
•
Expires: 2017-02-05
Abstract
Abstract A portable work light has a handle to which a head is pivotally attached. The head houses a light source and a reflector that projects a beam of light. The head has an air inlet and outlet with a fan that forces air from the inlet to outlet thereby cooling components inside the head. The work light may be powered by either a battery which is releaseably connected to the handle or from an external source via an electrical cord that connects to a socket in the handle. An optical fiber assembly may be releaseably attached to the head over the opening to direct light from source through a fiber optic cable to illuminate small recessed working areas.
Inventors
- 👤 Thomas L. Klamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/04; F21L14/00; F21L14/02; F21V; F21V29/00; F21V29/50; F21V29/60; F21V29/67; G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; G02B6/0006; G02B6/24; G02B6/42; G02B6/4298; F21W; F21W2131/00; F21W2131/40; F21W2131/411; G02B6/4296
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
152 words
A portable work light comprising: a handle having electrical terminals for connection to a battery; a head pivotally attached to the handle and having a opening, a first air inlet and a first air outlet, said head having a light source with a reflector to direct light from the light source through the opening; a fan mounted within said head for drawing air through the inlet, forcing the air over a surface of the reflector and through the outlet; a battery releaseably connected to the handle and engaging the electrical terminals for receiving electricity to power the fan and the light source; and an optical fiber adapter having a coupling for releaseably attaching to said head over the opening to receive light from the light source, and a fiber optic cable with a first end connected to the coupling for receiving light and a second end from which received light is emitted.
Claim 2
Dependent Claim
152 words
A portable work light comprising: a handle having electrical terminals for connection to a battery; a head pivotally attached to the handle and having a opening, a first air inlet and a first air outlet, said head having a light source with a reflector to direct light from the light source through the opening; a fan mounted within said head for drawing air through the inlet, forcing the air over a surface of the reflector and through the outlet; a battery releaseably connected to the handle and engaging the electrical terminals for receiving electricity to power the fan and the light source; and an optical fiber adapter having a coupling for releaseably attaching to said head over the opening to receive light from the light source, and a fiber optic cable with a first end connected to the coupling for receiving light and a second end from which received light is emitted.
Claim 3
Dependent Claim
23 words
The portable work light as recited in claim 1 further comprising a first electrical connector in one of the head and the handle.
Claim 4
Dependent Claim
26 words
The portable work light as recited in claim 2 further comprising an electrical cord having a second electrical connector which mates with the first electrical connector.
Claim 5
Dependent Claim
28 words
The portable work light as recited in claim 4 wherein the electrical cord has a third electrical connector for coupling to an electrical circuit of a motor vehicle.
Claim 6
Dependent Claim
31 words
The portable work light as recited in claim 3 wherein the electrical cord has a third electrical connector for coupling to a socket for a cigarette light in a motor vehicle.
Claim 7
Dependent Claim
41 words
The portable work light as recited in claim 1 wherein the head has a first fastener member and the coupling has a second fastener member which engages the first fastener member to releaseably attach the optical fiber adapter to the head.
Claim 8
Dependent Claim
21 words
The portable work light as recited in claim 1 further comprising a transparent window extending across the opening in the head.
Claim 9
Dependent Claim
19 words
The portable work light as recited in claim 1 wherein the first air outlet is adjacent to the opening.
Claim 10
Dependent Claim
93 words
The portable work light as recited in claim 1 wherein the coupling of the optical fiber adapter comprises: an outer element defining a first chamber within which light from the opening is received, and the first end of the fiber optic cable communicating with the first chamber; and an inner element extending around the outer element and forming an air passage therebetween, the air passage having a second air inlet which communicates with the first outlet of the head and having a second air outlet from which air moved by the fan flows.
Claim 11
Dependent Claim
74 words
The portable work light as recited in claim 1 wherein the coupling of the optical fiber adapter comprises: an outer wall having a conical shape; an inner wall having a conical shape and mounted within the outer wall with an air passage therebetween, the air passage having a second air inlet which communicates with the first outlet of the head and having a second air outlet from which air moved by the fan flows.
Claim 12
Dependent Claim
20 words
The portable work light as recited in claim 10 wherein the inner wall is substantially concentric with the outer wall.
Claim 13
Dependent Claim
260 words
A portable work light comprising: a handle having electrical terminals for connection to a battery, and having an electrical connector; a head pivotally attached to the handle and having a opening, a first air inlet and a first air outlet, said head having a light source with a reflector to direct light from the light source through the opening; a fan mounted within said head for drawing air through the inlet, forcing the air over a surface of the reflector and through the outlet; a switch assembly operably connected to control a flow of electric current from the electrical terminals and the electrical connector to the fan and the light source; a battery releaseably connected to the handle and engaging the electrical terminals for receiving electricity to power the fan and the light source; an electrical cord having a second electrical connector which mates with the first electrical connector; and an optical coupling releaseably attached to said head over the opening to receive light from the light source, said optical coupling having an outer wall with a conical shape, and an inner wall with a conical shape and concentrically within the outer wall thereby defining an air passage therebetween, the air passage having a second air inlet which communicates with the first outlet of the head and having a second air outlet from which air moved by the fan flows; a fiber optic cable with a first end connected to the coupling to receive light from the light source and having a second end from which received light is emitted.
Claim 14
Dependent Claim
260 words
A portable work light comprising: a handle having electrical terminals for connection to a battery, and having an electrical connector; a head pivotally attached to the handle and having a opening, a first air inlet and a first air outlet, said head having a light source with a reflector to direct light from the light source through the opening; a fan mounted within said head for drawing air through the inlet, forcing the air over a surface of the reflector and through the outlet; a switch assembly operably connected to control a flow of electric current from the electrical terminals and the electrical connector to the fan and the light source; a battery releaseably connected to the handle and engaging the electrical terminals for receiving electricity to power the fan and the light source; an electrical cord having a second electrical connector which mates with the first electrical connector; and an optical coupling releaseably attached to said head over the opening to receive light from the light source, said optical coupling having an outer wall with a conical shape, and an inner wall with a conical shape and concentrically within the outer wall thereby defining an air passage therebetween, the air passage having a second air inlet which communicates with the first outlet of the head and having a second air outlet from which air moved by the fan flows; a fiber optic cable with a first end connected to the coupling to receive light from the light source and having a second end from which received light is emitted.
Claim 15
Dependent Claim
41 words
The portable work light as recited in claim 12 wherein the head has a first fastener member and the coupling has a second fastener member which engages the first fastener member to releaseably attach the optical fiber adapter to the head.
Claim 16
Dependent Claim
21 words
The portable work light as recited in claim 12 further comprising a transparent window extending across the opening in the head.
References Cited (Backward Citations)
US1506303A
Cited
US1538992A
Cited
US3944805A
Cited
US4364104A
Cited
US4369486A
Cited
US4586117A
Cited
US4605990A
Cited
US4495550A
Cited
US4533982A
Cited
WO1987003354A1
Cited
US4713735A
Cited
US4839783A
Cited
US4818049A
Cited
US4961028A
Cited
US4907133A
Cited
US4975810A
Cited
US5099399A
Cited
US5093763A
Cited
US5154483A
Cited
US5154483B1
Cited
US5163752A
Cited
US5615938A
Cited
US5450293A
Cited
US5541822A
Cited
US5400425A
Cited
US5455751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-04 | 2001-11-03 | 2002-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-04 | 2005-11-03 | 2006-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-04 | 2009-11-03 | 2010-05-05 | $7700.00 | Window Closed / Lapsed |