Patent US4422131A successfully refreshed from Google Patents.
US4422131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finger light
Assignee: ADVA-LITE Inc
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Filing: 1982-09-07
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Granted: 1983-12-20
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Expires: 2002-09-07
Abstract
Abstract A light adapted to be worn on a human finger has a substantially hollow housing having the general configuration of a finger with an opening therein into which a human finger may be positioned. A pressure-activated light source in the form of a bulb, a battery and a spring for maintaining the bulb and battery spaced from one another is positioned in a closed end of the housing and adapted to be activated when a finger inserted into the housing forces the battery against the contact of the bulb.
Inventors
- 👤 Richard A. Clanton
- 👤 Raymond W. Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:38
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21V23/0414; F21L; F21L4/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
235 words
A light comprising: a flexible, molded, one-piece housing having a closed end and an open end, said housing having a translucent section at least in an area adjacent said closed end; a light source in said housing comprising a bulb, a battery and means for biasing said bulb and battery apart, said bulb having a glass dome, a metal base and a contact, said glass dome being positioned adjacent the closed end of said housing and said contact facing said open end; said battery being normally spaced from said bulb in a direction toward said open end and having a first terminal facing in the direction of said contact and an opposite terminal facing said open end, said battery being securely held within said housing by an inwardly directed flange molded integral with said housing at a location intermediate its closed and open ends; said biasing means being an electrically conductive spring which makes contact with said metal base of said bulb and with said opposite terminal of said battery to thereby complete the circuit when said first terminal touches said contact of said bulb; said housing being substantially hollow between said flange and said open end and adapted to receive a human finger so that said light may be worn as an extension of said finger and pressure of said finger through said flange against said battery may effect activation of said light source.
Claim 2
Dependent Claim
235 words
A light comprising: a flexible, molded, one-piece housing having a closed end and an open end, said housing having a translucent section at least in an area adjacent said closed end; a light source in said housing comprising a bulb, a battery and means for biasing said bulb and battery apart, said bulb having a glass dome, a metal base and a contact, said glass dome being positioned adjacent the closed end of said housing and said contact facing said open end; said battery being normally spaced from said bulb in a direction toward said open end and having a first terminal facing in the direction of said contact and an opposite terminal facing said open end, said battery being securely held within said housing by an inwardly directed flange molded integral with said housing at a location intermediate its closed and open ends; said biasing means being an electrically conductive spring which makes contact with said metal base of said bulb and with said opposite terminal of said battery to thereby complete the circuit when said first terminal touches said contact of said bulb; said housing being substantially hollow between said flange and said open end and adapted to receive a human finger so that said light may be worn as an extension of said finger and pressure of said finger through said flange against said battery may effect activation of said light source.
Claim 3
Dependent Claim
29 words
The light of claim 1, further comprising finger gripping means on the internal surface of said housing for providing a secure fit for a number of different size fingers.
Claim 4
Dependent Claim
25 words
The light of claim 2, wherein said finger gripping means is a plurality of substantially longitudinal ribs extending along the internal surface of said housing.
Claim 5
Dependent Claim
25 words
The light of claim 2, wherein said finger gripping means is a plurality of substantially circumferential ribs extending around the internal surface of said housing.
References Cited (Backward Citations)
US4183076A
Cited
US4281368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |