Methods of and apparatus for separating and detecting sheets

Details Methods of and apparatus for separating and detecting sheets Methods of and apparatus for separating and detecting sheets

1991-05-31

1993-04-13

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

271161, H01J 4014

Patent

active

052025543

ABSTRACT:
The sheets within a stack of sheets are separated by clamping one end of the stack, bending the other end, clamping the other end and then unbending the stack. A radiation beam such as a laser beam is then directed at the stack of separated sheets, the beam reflecting from the edges of the sheets. The reflected signal is sensed by a photodetector which converts the received intensity into an electrical signal which is then fed to a processor, such as a microprocessor, to count the number of sheets.

REFERENCES:
patent: Re27869 (1974-01-01), Willits et al.
patent: 3422274 (1969-01-01), Coan
patent: 3581067 (1971-05-01), Willits et al.
patent: 3661431 (1972-05-01), Wisecarver
patent: 3663803 (1972-05-01), Mohan et al.
patent: 3692980 (1972-09-01), Getker et al.
patent: 3790759 (1974-02-01), Mohan et al.
patent: 3813523 (1974-05-01), Mohan et al.
patent: 3835306 (1974-09-01), Bills et al.
patent: 3862402 (1975-01-01), Igarashi et al.
patent: 3983367 (1976-09-01), Kondo et al.
patent: 4149319 (1979-04-01), Nelle
patent: 4232218 (1980-11-01), Kenton et al.
patent: 4373135 (1983-02-01), Mohan et al.
patent: 4384195 (1983-05-01), Nosler
patent: 4532421 (1985-07-01), Sasaoka et al.
patent: 4547674 (1985-10-01), Pryor et al.
patent: 4694474 (1987-09-01), Dorman et al.
patent: 4771443 (1988-09-01), Mohan et al.
patent: 4828367 (1989-05-01), Curbelo et al.
patent: 4846589 (1989-07-01), Chikuma et al.
patent: 4912317 (1990-03-01), Mohan et al.
patent: 4978845 (1990-12-01), Hill
patent: 4994666 (1991-02-01), Higgison et al.
patent: 4995060 (1991-02-01), Hill
patent: 5005192 (1991-04-01), Duss
patent: 5017773 (1991-05-01), Sato
patent: 5040196 (1991-08-01), Woodward
patent: 5046076 (1991-09-01), Hill
patent: 5082363 (1992-01-01), Nakanishi et al.
patent: 5087119 (1992-02-01), Kaneko et al.
Patent Abstracts of Japan, vol. 10, No. 114 (M-473) (2171), Apr. 26th, 1986 & JPA-60,242,149.
Patent Abstracts of Japan, vol. 9, No. 268 (M-424) (1991), Oct. 25th, 1985.
Patent Abstracts of Japan, vol. 14, No. 369 (P-1090) (4312), Aug. 9, 1990.
Soviet Inventions Illustrated, week 8840, Nov. 16th, 1988, Class TO5, Access No. N88-215903, Derwent Publications Ltd., London, GB.
"MQ Laser Analog Sensor (Class I/Class IIIb)", Technical Manual, Aromat, 1989.

Affiliated with

Also associated with

Rating

Methods of and apparatus for separating and detecting sheets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods of and apparatus for separating and detecting sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of and apparatus for separating and detecting sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1157014