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US4563728A Expired / Lapsed US ⏱️ 0.0 years remaining

Pen light with abutting contact clip

Assignee: WONDER Corp OF AMERICA A CORP OF CT
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Filing: 1984-08-27
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Granted: 1986-01-07
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Expires: 2004-08-27
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Abstract

Abstract Disclosed is a pen light having an outer casing, a lamp within the lower end of the casing, battery means within the casing in electrical contact with a first terminal of the lamp, a conductive clip for engaging the battery means toward the upper end of the casing, and a conductive member engaging a second terminal of the lamp and extending into proximity with a free end of the clip so that the free end of the clip can be pushed through a contact opening in the casing into electrical contact with the conductive member to turn on the lamp. The clip is shaped so that it abuts against the upper edge of the contact opening at a point above the free end such that the electrical circuit to the lamp can be closed when pressure is applied to the clip at the free end but cannot be closed when pressure is applied to the clip above the point of contact.

Inventors

  • 👤 Paul Bruggeman
  • 👤 Nova C. Hastings

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 04:33
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21V23/0414; F21L; F21L4/00; F21L4/005; F21V21/00; F21V21/08; F21V21/088; F21V21/0885

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 161 words
A pen light comprising an outer casing, a lamp within the lower end of the casing, battery means within the casing in electrical contact with a first terminal of the lamp, a conductive clip for engaging the battery means toward the upper end of the casing, and a conductive member within the casing engaging a second terminal of the lamp and extending into proximity with a free end of the clip so that the free end of the clip can be pushed through a contact opening in the casing into electrical contact with said conductive member to turn on the lamp, wherein said clip is shaped so that it abuts against the upper edge of said contact opening at a point above said free end such that the electrical circuit to the lamp can be closed when pressure is applied to the clip at the free end but cannot be closed when pressure is applied to the clip above said point.
Claim 2
Dependent Claim 161 words
A pen light comprising an outer casing, a lamp within the lower end of the casing, battery means within the casing in electrical contact with a first terminal of the lamp, a conductive clip for engaging the battery means toward the upper end of the casing, and a conductive member within the casing engaging a second terminal of the lamp and extending into proximity with a free end of the clip so that the free end of the clip can be pushed through a contact opening in the casing into electrical contact with said conductive member to turn on the lamp, wherein said clip is shaped so that it abuts against the upper edge of said contact opening at a point above said free end such that the electrical circuit to the lamp can be closed when pressure is applied to the clip at the free end but cannot be closed when pressure is applied to the clip above said point.
Claim 3
Dependent Claim 27 words
The pen light of claim 1 wherein said conductive clip has an upper hooked end for engaging the battery means toward the upper end of the casing.
Claim 4
Dependent Claim 18 words
The pen light of claim 1 further comprising removable cap means at the upper end of the casing.
Claim 5
Dependent Claim 18 words
The pen light of claim 2 further comprising removable cap means at the upper end of the casing.

References Cited (Backward Citations)

US3963914A Cited
US4408263A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-01-06 1989-07-08 1990-01-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-01-06 1993-07-08 1994-01-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-01-06 1997-07-08 1998-01-07 $7700.00 Window Closed / Lapsed

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