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Class Information
Number: 271/260
Name: Sheet feeding or delivering > Feeding > With means to interrupt feeding > Responsive to sheet sensor > Plural sensors > Pneumatic sensors (e.g., to sense superposed sheets)
Description: Device wherein the detecting means utilize air pressure or suction in their activating circuitry.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7396175 |
Sheet carrier and image forming device |
Jul. 8, 2008 |
| 6918587 |
Adaptive and predictive document tracking system |
Jul. 19, 2005 |
| 6851672 |
Sheet transport position and jam monitor |
Feb. 8, 2005 |
| 6086064 |
Object position/presence sensor and method for detecting object position or presence |
Jul. 11, 2000 |
| 6027113 |
Multiple document detection system |
Feb. 22, 2000 |
| 5996994 |
Device for detecting mis-fed or missing sheets in a turning device of a printing press |
Dec. 7, 1999 |
| 5908191 |
Double-document detection arrangement |
Jun. 1, 1999 |
| 5671919 |
Double-document detection arrangement |
Sep. 30, 1997 |
| 5509648 |
Document separation/detection technique |
Apr. 23, 1996 |
| 5439506 |
Separation process for a check processor |
Aug. 8, 1995 |
| 5437375 |
Double-document detection systems |
Aug. 1, 1995 |
| 5419546 |
Double-document detection arrangement |
May. 30, 1995 |
| 5379128 |
Document transport apparatus and method |
Jan. 3, 1995 |
| 5207416 |
Stack height sensing system |
May. 4, 1993 |
| 5102114 |
Device for detecting carry-out of last glass sheet from stacking stand |
Apr. 7, 1992 |
| 5088716 |
Device for scanning the length of a sheet in a sheet processing machine, such as a sheet-fed rotary printing press particularly |
Feb. 18, 1992 |
| 4936566 |
Apparatus for picking up a proper number of fabric workpieces |
Jun. 26, 1990 |
| 4784274 |
Bill device |
Nov. 15, 1988 |
| 4608856 |
Double feed detection device |
Sep. 2, 1986 |
| 4508332 |
Sheet feeder for copying machines |
Apr. 2, 1985 |
| 4369964 |
Sheet feed apparatus for printer or the like |
Jan. 25, 1983 |
| 4236710 |
Sheet supplying apparatus |
Dec. 2, 1980 |
| 4184674 |
Monitoring device for missing and skewed sheets in sheet feeds |
Jan. 22, 1980 |
| 4127265 |
Sheet sensing device in a rotary printing press |
Nov. 28, 1978 |
| 3966197 |
Method and apparatus for controlled feeding of sheets to printing machines or the like |
Jun. 29, 1976 |
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