Patent US4872093A successfully refreshed from Google Patents.
US4872093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright meter
Assignee: Yazaki Corp
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Filing: 1988-05-27
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Granted: 1989-10-03
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Expires: 2008-05-27
Abstract
Abstract To improve bright needle recognizability on a dial for a bright meter, a needle made of a light transmissible material and brightened by a light source comprises a lower light reflecting layer formed at a lower surface of the needle; a first side light reflecting layer formed on a first side surface of the needle; and an upper semitransparent layer for brightening an upper surface of the needle. Therefore, when the needle is brightened, light is transmitted from a second side surface opposing the first side surface of the needle obliquely onto the dial to illuminate the lower indication display area side from the needle on the dial, for instance.
Inventors
- 👤 Takeshige Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/28; G01D13/00; G01D13/22; G01P; G01P1/00; G01P1/07; G01P1/08; Y; Y10; Y10S; Y10S116/00; Y10S116/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A bright meter comprising: (a) a light source; (b) a dial; and (c) a needle made of a light transmissible material and brightened by said light source, having: (1) a lower light reflecting layer formed on a lower surface of said needle; (2) a first side light reflecting layer formed on a first side surface of said needle, when said needle is brightened, light being reflected from said first side light reflecting layer and emitted through a second side surface opposing said first side surface of said needle obliquely onto said dial.
Claim 2
Dependent Claim
92 words
A bright meter comprising: (a) a light source; (b) a dial; and (c) a needle made of a light transmissible material and brightened by said light source, having: (1) a lower light reflecting layer formed on a lower surface of said needle; (2) a first side light reflecting layer formed on a first side surface of said needle, when said needle is brightened, light being reflected from said first side light reflecting layer and emitted through a second side surface opposing said first side surface of said needle obliquely onto said dial.
Claim 3
Dependent Claim
26 words
The bright meter as set forth in claim 1, wherein said needle further comprises an upper semitransparent layer for brightening an upper surface of said needle.
Claim 4
Dependent Claim
38 words
The bright meter as set forth in claim 1, wherein said second side surface of said needle through which illumination light is emitted onto the dial is located on a lower indication display area side on said dial.
Claim 5
Dependent Claim
38 words
The bright meter as set forth in claim 1, wherein said second side surface of said needle through which illumination light is emitted onto the dial is located on a higher indication display area side on said dial.
Claim 6
Dependent Claim
117 words
A bright meter comprising: (a) a light source; (b) a dial; and (c) a pointer needle made of a light transmissible material and brightened by said light source, having: (1) a lower light reflecting layer formed on a lower surface of said needle; (2) a first side light reflecting layer formed on a first side surface of said needle; and (3) an upper semitransparent layer for brightening an upper surface of said needle, when said needle is brightened, light being reflected from said first side light reflecting layer and partially reflected from said upper semitransparent layer, and further being emitted obliquely onto said dial through a second side surface opposing said first side surface of said needle.
Claim 7
Dependent Claim
117 words
A bright meter comprising: (a) a light source; (b) a dial; and (c) a pointer needle made of a light transmissible material and brightened by said light source, having: (1) a lower light reflecting layer formed on a lower surface of said needle; (2) a first side light reflecting layer formed on a first side surface of said needle; and (3) an upper semitransparent layer for brightening an upper surface of said needle, when said needle is brightened, light being reflected from said first side light reflecting layer and partially reflected from said upper semitransparent layer, and further being emitted obliquely onto said dial through a second side surface opposing said first side surface of said needle.
Claim 8
Dependent Claim
38 words
The bright meter as set forth in claim 5, wherein said second side surface of said needle through which illumination light is emitted onto the dial is located on a lower indication display area side on said dial.
Claim 9
Dependent Claim
38 words
The bright meter as set forth in claim 5, wherein said second side surface of said needle through which illumination light is emitted onto the dial is located on a higher indication display area side on said dial.
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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) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |