US4137561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnifying hand tool with self-containing illuminating means
Assignee: Individual
•
Filing: 1977-02-02
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Granted: 1979-01-30
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Expires: 1997-02-02
Abstract
Abstract A hand tool having integral work area illumination means and magnifying means capable of being held and adjusted by one hand of the user. The apparatus may be powered by internal batteries or from an external source by means of an adapter.
Inventors
- 👤 George C. Andree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:24
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/0004; F21V33/0048; A; A61; A61C; A61C1/00; A61C1/08; A61C1/088; B; B43; B43K; B43K29/00; B43K29/004; G; G02; G02B; G02B25/00; G02B25/02; A61B; A61B1/00; A61B1/06; A61B1/0661; A61B1/0669
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
A hand tool having integral illumination means, adjustable magnification means, a chuck for receiving interchangeable workpiece modifying tool elements; and a hollow cylindrical elongated support member adapted to be held in the crook of the hand having electrically energizable illumination means at one end thereof with a terminal means extending into the support member; the improvement comprising: (a) a bracket affixed to said support member; (b) a shaft rotatably mounted in said bracket perpendicular to said support member; (c) a thumbwheel fixed to said shaft rotatably mounted in said bracket, said thumbwheel having diametrically opposed portions extending from said bracket; (d) a pinion gear carried by said shaft above said thumbwheel relative to said support member; (e) a rack above said thumbwheel translatably secured to said bracket engaging said pinion gear and carrying said magnification means for adjustably positioning same, said rack arranged to move parallel to said support member.
Claim 2
Dependent Claim
150 words
A hand tool having integral illumination means, adjustable magnification means, a chuck for receiving interchangeable workpiece modifying tool elements; and a hollow cylindrical elongated support member adapted to be held in the crook of the hand having electrically energizable illumination means at one end thereof with a terminal means extending into the support member; the improvement comprising: (a) a bracket affixed to said support member; (b) a shaft rotatably mounted in said bracket perpendicular to said support member; (c) a thumbwheel fixed to said shaft rotatably mounted in said bracket, said thumbwheel having diametrically opposed portions extending from said bracket; (d) a pinion gear carried by said shaft above said thumbwheel relative to said support member; (e) a rack above said thumbwheel translatably secured to said bracket engaging said pinion gear and carrying said magnification means for adjustably positioning same, said rack arranged to move parallel to said support member.
Claim 3
Dependent Claim
53 words
The hand tool of claim 1, including contact making means adapted to be inserted in said hollow cylindrical elongated support member and make electrical contact with said illumination means and external variable voltage control means connected to said contact making means, said control means having provision for connection to an external power source.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |