US4540239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighted magnifying lens device
Assignee: Individual
•
Filing: 1983-09-26
•
Granted: 1985-09-10
•
Expires: 2003-09-26
Abstract
Abstract A curved trough shaped housing reflects light from a light mounted within a housing to an external workspace located under a magnifying lens attached to the housing. An adjustable mounting of the lens to the housing allows for variation of the user's viewing angle through the lens so that handicraft, reading and similar close work can be carried out in a constantly well lit, optically magnified workspace without extreme downward bending of the user's neck. The distance from the eyes to the lens is adjusted by varying the length of a cord which supports the device from the user's neck.
Inventors
- 👤 Betty S. Frankel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:31
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/002; G02B25/00; G02B25/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
In a magnifying device supported by a cord means slung around the user's neck, wherein the improvement comprises, in combination: a trough shaped housing for reflecting light from a light bulb mounted within the housing to a workspace located in front of the trough opening and underneath a magnifying lens adjustably mounted in relation to the top of the housing; slide prevention means located on the outside of the rear of the housing; lens means in a frame which is adjustably mounted to the housing to allow for variation in the angle between the housing and the lens frame.
Claim 2
Dependent Claim
99 words
In a magnifying device supported by a cord means slung around the user's neck, wherein the improvement comprises, in combination: a trough shaped housing for reflecting light from a light bulb mounted within the housing to a workspace located in front of the trough opening and underneath a magnifying lens adjustably mounted in relation to the top of the housing; slide prevention means located on the outside of the rear of the housing; lens means in a frame which is adjustably mounted to the housing to allow for variation in the angle between the housing and the lens frame.
Claim 3
Dependent Claim
16 words
The magnifying device of claim 1 wherein the trough shaped housing has a curved reflecting surface.
Claim 4
Dependent Claim
24 words
The magnifying device of claim 1 wherein the light bulb is mounted to one end of the housing and has an elongated tube configuration.
Claim 5
Dependent Claim
30 words
The magnifying device of claim 1 wherein the slide prevention means is made of a semi-rigid material having a high coefficient of friction and a low coefficient of heat transfer.
Claim 6
Dependent Claim
72 words
The magnifying device of claim 1 wherein the adjustable mounting of the lens frame to the housing is accomplished by means of a bolt extending through each respective end of the housing, through an adjacent arm of the lens frame and to a hand operated locking device which provides for easy variation of the angle between the lens frame and the housing and for locking the lens frame at the desired angle.
Claim 7
Dependent Claim
29 words
The magnifying device of claim 1 wherein the cord means is attached to the device in the vicinity of the hand operated locking means which comprises a wing nut.
Claim 8
Dependent Claim
167 words
In a magnifying device supported by a cord means slung around the user's neck, wherein the improvement comprises, in combination: a curved trough shaped housing having a smooth non-opaque colored inside surface for reflecting light from a low heat producing, elongated light bulb mounted at one end of the inside of the housing to a workspace located in front of the trough opening and underneath a magnifying lens adjustably mounted in relation to the top of the housing; a slide prevention bar made of a styrofoam-like material attached to the outside of the rear of the housing; and a lens in a frame which is adjustably mounted to the housing by means of a bolt extending through each respective end of the housing, through an adjacent arm of the lens frame and to a wing nut for locking the lens frame in relation to the housing and wherein the bolt further comprises a hole for receiving a ring which is attached to an end of the cord.
Claim 9
Dependent Claim
167 words
In a magnifying device supported by a cord means slung around the user's neck, wherein the improvement comprises, in combination: a curved trough shaped housing having a smooth non-opaque colored inside surface for reflecting light from a low heat producing, elongated light bulb mounted at one end of the inside of the housing to a workspace located in front of the trough opening and underneath a magnifying lens adjustably mounted in relation to the top of the housing; a slide prevention bar made of a styrofoam-like material attached to the outside of the rear of the housing; and a lens in a frame which is adjustably mounted to the housing by means of a bolt extending through each respective end of the housing, through an adjacent arm of the lens frame and to a wing nut for locking the lens frame in relation to the housing and wherein the bolt further comprises a hole for receiving a ring which is attached to an end of the cord.
References Cited (Backward Citations)
US1130689A
Cited
US1556510A
Cited
US1567439A
Cited
US2122753A
Cited
US2531585A
Cited
US2541760A
Cited
US2771003A
Cited
US2803919A
Cited
US3462111A
Cited
US3753610A
Cited
US3955884A
Cited
DE2821002A1
Cited
US4468873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |