US4247928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral lightpipe and display holder for a timepiece
Assignee: Timex Group USA Inc
•
Filing: 1979-10-17
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Granted: 1981-01-27
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Expires: 1999-10-17
Abstract
Abstract A pod which holds the components of an electronic timepiece including the electro-optic display, substrate board and light source for illuminating the display is molded of transparent light transmitting material to pipe the light throughout the portion of the pod behind the display for backlighting the display.
Inventors
- 👤 Leonard M. Dorfman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:13
CPC Classifications
G; G04; G04G; G04G9/00; G04G9/0023; G04G9/0029; G04G9/0035; G04G9/0041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
In a timepiece having components including an electro-optic display, a substrate board having an integrated circuit adapted to actuate the display, and a light source for illuminating the display, the improvement comprising: a pod molded of transparent light-transmitting material, said pod having recess-forming peripheral portions adapted to receive the display and substrate board and having a central integral flat portion interposed between the display and substrate board, said light source being disposed adjacent an edge defined by said flat portion in a lamp recess defined in the pod on the substrate side thereof, whereby said pod central flat portion transmits the light from said light source throughout said portion for illuminating the back of the display.
Claim 2
Dependent Claim
116 words
In a timepiece having components including an electro-optic display, a substrate board having an integrated circuit adapted to actuate the display, and a light source for illuminating the display, the improvement comprising: a pod molded of transparent light-transmitting material, said pod having recess-forming peripheral portions adapted to receive the display and substrate board and having a central integral flat portion interposed between the display and substrate board, said light source being disposed adjacent an edge defined by said flat portion in a lamp recess defined in the pod on the substrate side thereof, whereby said pod central flat portion transmits the light from said light source throughout said portion for illuminating the back of the display.
Claim 3
Dependent Claim
42 words
The improvement according to claim 1, wherein said pod defines said lamp recess between said flat portion and one of said peripheral portions adapted to receive the light source, said recess including an inclined surface forming said edge of said flat portion.
Claim 4
Dependent Claim
14 words
The improvement according to claim 1, wherein said pod material is clear polycarbonate plastic.
Claim 5
Dependent Claim
14 words
The improvement according to claim 1, wherein said pod material is clear acrylic plastic.
Claim 6
Dependent Claim
24 words
The improvement according to claim 1, wherein said light source is a miniature incandescent lamp supported by electrical leads attached to said substrate board.
Claim 7
Dependent Claim
67 words
The improvement according to claim 1, wherein said peripheral portions define a display recess on one side of said flat portion adapted to receive the display and a substrate recess on the other side of said flat portion adapted to receive the substrate, and wherein the pod defines a lamp recess between the flat portion and one of said peripheral portions adapted to receive the light source.
Claim 8
Dependent Claim
14 words
The improvement according to claim 6 wherein said pod material is clear polycarbonate plastic.
Claim 9
Dependent Claim
23 words
The improvement according to claim 6 further including a metal clip holding the display, substrate and lamp in said recesses in the pod.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |