← Back to Patent Explorer
US4958267A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable lamp

Assignee: K and H Ind Inc
•
Filing: 1989-11-20
•
Granted: 1990-09-18
•
Expires: 2009-11-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A portable electric lamp of explosion-proof construction including an elongated hand grip, an elongated flourescent bulb having a U-shaped joint light-generating portion supported at one end of the hand grip and a transparent tube positioned about the light-generating portion of the bulb utilizes an elongated tubular protector element positioned about the transparent tube and which cooperates with the hand grip to maintain the transparent tube in position about the light-generating portion of the bulb. The lamp further includes a power cord routed through the end of the hand grip opposite the light-generating portion and the lamp includes an amount of magnesite base cement positioned in the hand grip and interposed between the light-generating portion and a section of the power cord entering the hand grip. The lamp further includes a ballast assembly having a ballast interconnected in the power cord at a location remote of the hand grip and wherein the ballast is encased in magnesite base cement.

Inventors

  • 👤 Karl A. Baake

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 12:07
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; F21L14/026; F21V; F21V25/00; F21V25/12; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/37

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 93 words
A portable electric lamp comprising: an elongated hand grip having two opposite ends; an electric light-generating portion attached to so as to extend from one end of the hand grip; conducting means for supplying electric power to the light-generating portion including a power cord routed through the other end of the hand grip for operative connection with the light-generating portion; and an amount of magnesite base cement positioned in said hand grip and interposed between the light-generating portion and a section of the power cord entering said other end of the hand grip.
Claim 2
Dependent Claim 93 words
A portable electric lamp comprising: an elongated hand grip having two opposite ends; an electric light-generating portion attached to so as to extend from one end of the hand grip; conducting means for supplying electric power to the light-generating portion including a power cord routed through the other end of the hand grip for operative connection with the light-generating portion; and an amount of magnesite base cement positioned in said hand grip and interposed between the light-generating portion and a section of the power cord entering said other end of the hand grip.
Claim 3
Dependent Claim 34 words
A lamp as defined in claim 1 wherein said power cord section is a first section and said power cord includes a second section which is embedded in said amount of magnesite base cement.
Claim 4
Dependent Claim 60 words
A portable electric lamp comprising: an elongated hand grip having two opposite ends; an electric light-generating portion attached to so as to extend from one end of the hand grip, said light-generating portion including a flourescent bulb; conducting means for supplying electric power to the light-generating portion and including a ballast, and amount of magnesite base cement encasing said ballast.
Claim 5
Dependent Claim 60 words
A portable electric lamp comprising: an elongated hand grip having two opposite ends; an electric light-generating portion attached to so as to extend from one end of the hand grip, said light-generating portion including a flourescent bulb; conducting means for supplying electric power to the light-generating portion and including a ballast, and amount of magnesite base cement encasing said ballast.
Claim 6
Dependent Claim 54 words
A lamp as defined in claim 3 wherein said conducting means includes a power cord routed through said other end of said hand grip for operative connection with the light-generating portion, and said ballast is operatively interconnected to said power cord at a location therealong remote of said other end of said hand grip.

References Cited (Backward Citations)

US2228680A Cited
US4156893A Cited
US4225910A Cited
US4229780A Cited
US4583154A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-09-17 1994-03-19 1994-09-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-09-17 1998-03-19 1998-09-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-09-17 2002-03-19 2002-09-18 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag