Patent US2700792A successfully refreshed from Google Patents.
Patent US1651680A successfully refreshed from Google Patents.
Patent US3793515A successfully refreshed from Google Patents.
US3793515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp
Assignee: Individual
•
Filing: 1972-04-17
•
Granted: 1974-02-19
•
Expires: 1992-04-17
Abstract
Abstract A battery-operated lamp is provided with an L-shaped base and an offset translucent globe or cover housing. The bulb is actuated by a position-responsive switch whereby the lamp may be turned on or off by tilting the lamp onto one of two faces of the base. The configuration is such that cover housing remains elevated and the lamp has the same appearance in either the on or the off position.
Inventors
- 👤 J Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:51
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04; F21V23/0414; Y; Y10; Y10S; Y10S362/00; Y10S362/802
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
240 words
A lamp comprising a. a symmetrical and relatively small opaque L-shaped base comprising a pair of mutually perpendicular matching rectilinear legs, each of said legs having side walls and one flat face, said flat faces intersecting at a 90* angle for providing balanced support for resting said base on a support surface in one of two rest positions, b. said legs being hollow and formed with an L-shaped opening opposite said flAt faces, c. battery mounting means mounted in each leg of said base and adapted to support a battery in each leg for balancing said base, d. bulb mounting means mounted within the opening of said legs and adapted to support a bulb extending out through said opening, e. a position responsive switch mounted in said base and operatively connected to said bulb and battery, and f. a symmetrical translucent and relatively large hollow cover housing formed with an L-shaped opening therein adapted to detachably connect with said base and having an outside dimension in excess of the dimension of the L-shaped opening of said legs, g. said cover housing opening being in registration with said base opening when said base and cover housing are connected whereby said cover housing will overhang the sides and ends of said base legs, h. said base legs being dimensioned to maintain a clearance between said cover housing and a support surface when said lamp is resting on either of said flat faces.
Claim 2
Dependent Claim
240 words
A lamp comprising a. a symmetrical and relatively small opaque L-shaped base comprising a pair of mutually perpendicular matching rectilinear legs, each of said legs having side walls and one flat face, said flat faces intersecting at a 90* angle for providing balanced support for resting said base on a support surface in one of two rest positions, b. said legs being hollow and formed with an L-shaped opening opposite said flAt faces, c. battery mounting means mounted in each leg of said base and adapted to support a battery in each leg for balancing said base, d. bulb mounting means mounted within the opening of said legs and adapted to support a bulb extending out through said opening, e. a position responsive switch mounted in said base and operatively connected to said bulb and battery, and f. a symmetrical translucent and relatively large hollow cover housing formed with an L-shaped opening therein adapted to detachably connect with said base and having an outside dimension in excess of the dimension of the L-shaped opening of said legs, g. said cover housing opening being in registration with said base opening when said base and cover housing are connected whereby said cover housing will overhang the sides and ends of said base legs, h. said base legs being dimensioned to maintain a clearance between said cover housing and a support surface when said lamp is resting on either of said flat faces.
Claim 3
Dependent Claim
72 words
A lamp according to claim 1 wherein said base is formed with a lip extending about said base opening, the opposite ends of said base lip being formed with parallel ribs and grooves, said cover housing being formed with a lip extending about said cover housing opening, the opposite ends of said cover housing lip being formed with parallel ribs and grooves for cooperating engagement with said base lip ribs and grooves.
Claim 4
Dependent Claim
88 words
A lamp according to claim 1 wherein said switch includes a conductive finger pivotally mounted in said base and electrically connected at its pivot end to one of said bulb and battery, and a fixed contact mounted adjacent the opposite end of said finger, said contact being electrically connected to the other of said bulb and battery, said switch being pivoted about an axis parallel to the intersection of both of said faces whereby said switch will open and close according to the rest position of said lamp.
Claim 5
Dependent Claim
63 words
A lamp according to claim 1 wherein said switch includes an enclosure, a pair of contacts mounted in said enclosure, one contact being connected to said battery and the other to said bulb, and a conductive member movably disposed in said enclosure and adapted to engage both of said contacts in one position of said lamp and disengage said contacts in another position.
Claim 6
Dependent Claim
53 words
A lamp according to claim 1 wherein said switch includes a pair of fixed spaced contacts connected respectfully to said battery and said bulb and an unbalanced conductive finger pivoted between said contacts and adapted to engage both of said contacts in one position of said lamp and disengage therefrom in another position.
References Cited (Backward Citations)
US2572760A
Cited
US2758195A
Cited
US3283136A
Cited
US3321618A
Cited
US3531637A
Cited
US3610918A
Cited
US3684882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |