Instrument device

Details Instrument device Instrument device

2004-04-16

2008-03-18

Smith, R. Alexander (Department: 2859)

Geometrical instruments

Straight-line light ray type

Alignment device

C116S062100, C116SDIG036, C362S029000

Reexamination Certificate

active

07343687

ABSTRACT:
This invention provides an instrument device including: a dial having scale marks; a pointer pointing the scale marks and provided in front of the dial; a light source provided behind the dial and supplying light to the pointer to cause the pointer to emit light; and a cover provided in front of the pointer, the scale marks and the pointer being visually confirmed through the cover, wherein a reflection member is provided at a part of the cover corresponding to a rotation center of the pointer; a reflection part is provided on the dial; and the reflection part is illuminated with light emitted from the pointer and light reflected and scattered by the reflection member after being emitted from the pointer.

REFERENCES:
patent: 657331 (1900-09-01), Christensen
patent: 2173316 (1939-09-01), Sproule
patent: 2189535 (1940-02-01), Stuerzl
patent: 2738759 (1956-03-01), Hardesty
patent: 2831453 (1958-04-01), Hardesty
patent: 4004546 (1977-01-01), Harland
patent: 4215647 (1980-08-01), Fukasawa
patent: 4761715 (1988-08-01), Brooks
patent: 4935850 (1990-06-01), Smith, Jr.
patent: 4970400 (1990-11-01), Muramatsu
patent: 5353735 (1994-10-01), Arai et al.
patent: 6379015 (2002-04-01), Wilhelm et al.
patent: 6663251 (2003-12-01), Calvert
patent: 6926417 (2005-08-01), Mikami
patent: 6955438 (2005-10-01), Ishii
patent: 2006/0185576 (2006-08-01), Tane
patent: 48-21873 (1973-06-01), None
patent: 5-90323 (1993-12-01), None
patent: 6-347299 (1994-12-01), None
patent: 7-89235 (1995-04-01), None
patent: 2003-21544 (2003-01-01), None
patent: 2003-140576 (2003-05-01), None
patent: 2007064682 (2007-03-01), None

Affiliated with

Also associated with

Rating

Instrument device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Instrument device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instrument device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3961746