US4987279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display button of push-button switch
Assignee: Nihon Kaiheiki Industry Co Ltd
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Filing: 1989-09-22
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Granted: 1991-01-22
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Expires: 2009-09-22
Abstract
Abstract A display button of a push-button switch according to the invention includes a central design display portion and angular display portions, which serve for illumination, arranged on the display surface of a push-button, with a display of a color contrasting with that of the background. Displays having a variety of colors and modes can be presented by selectively illuminating and displaying both display portions.
Inventors
- 👤 Kenichi Hirose
- 👤 Tadao Ichikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:55
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/18; H01H9/181; H01H2219/00; H01H2219/002; H01H2219/01; H01H2219/012
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
127 words
A push-button for a switch, said push-button comprising: means for mounting said push-button, including a plunger, for reciprocating linear motion relative to the switch, along the axis of said plunger; a display surface on the push-button, said display surface lying in a plane perpendicular to said axis; a four-sided design display portion provided at approximately the center of said display surface and spaced from the edges of said display surface to define a peripheral portion on said display surface; a plurality of separate illumination areas located in said peripheral portion of said display surface, said illumination areas including portions located on all four sides of said design display portion, thereby framing said design display portion; and first illumination means, within the push-button, for illuminating said illumination areas.
Claim 2
Dependent Claim
127 words
A push-button for a switch, said push-button comprising: means for mounting said push-button, including a plunger, for reciprocating linear motion relative to the switch, along the axis of said plunger; a display surface on the push-button, said display surface lying in a plane perpendicular to said axis; a four-sided design display portion provided at approximately the center of said display surface and spaced from the edges of said display surface to define a peripheral portion on said display surface; a plurality of separate illumination areas located in said peripheral portion of said display surface, said illumination areas including portions located on all four sides of said design display portion, thereby framing said design display portion; and first illumination means, within the push-button, for illuminating said illumination areas.
Claim 3
Dependent Claim
23 words
The push-button according to claim 1, wherein said design display portion is transparent and is illuminated by a light source within the push-button.
Claim 4
Dependent Claim
18 words
The push-button according to claim 1, wherein said plurality of illumination areas are displayed in respectively different colors.
Claim 5
Dependent Claim
23 words
The push-button according to claim 3, wherein said design display portion is transparent and is illuminated by a light source within the push-button.
Claim 6
Dependent Claim
24 words
The push-button according to claim 1, wherein said illumination areas have right-angled configurations and are located at the four corners of said display surface.
Claim 7
Dependent Claim
18 words
The push-button according to claim 5, wherein said plurality of illumination areas are displayed in respectively different colors.
Claim 8
Dependent Claim
23 words
The push-button according to claim 5, wherein said design display portion is transparent and is illuminated by a light source within the push-button.
References Cited (Backward Citations)
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US3789173A
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US4013857A
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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) | 1994-01-21 | 1994-07-23 | 1995-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-21 | 1998-07-23 | 1999-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-21 | 2002-07-23 | 2003-01-22 | $7700.00 | Window Closed / Lapsed |