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Class Information
Number: 271/154
Name: Sheet feeding or delivering > Feeding > Pack holders > Advancer > Control of advancer responsive to sensing of foremost sheet > Sensor activates electric or fluidic circuit
Description: Device wherein the detecting means is included in a system of wiring or tubing that carries a flow of electricity or fluid respectively, and wherein said detecting means regulates said flow to activate or deactivate the urging means.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7296789 |
Sheet feeder, image reading apparatus, and image forming apparatus |
Nov. 20, 2007 |
| 6908082 |
Method and system for providing sheet stack level control |
Jun. 21, 2005 |
| 6874780 |
Device for controlling the means delivering sheets to a machine |
Apr. 5, 2005 |
| 6824133 |
Stack monitoring method and system |
Nov. 30, 2004 |
| 6761352 |
Method and system for double feed detection |
Jul. 13, 2004 |
| 6651977 |
Paper feeding apparatus with stack presence actuator |
Nov. 25, 2003 |
| 6592119 |
Stack height determination and stack height control mechanism |
Jul. 15, 2003 |
| 6523821 |
Paper feeder apparatus for use with image forming apparatus |
Feb. 25, 2003 |
| 6505832 |
Variable acceleration take-away roll (TAR) for high capacity feeder |
Jan. 14, 2003 |
| 6293539 |
Rotating or pivoting apparatus and medium feeding apparatus |
Sep. 25, 2001 |
| 6179283 |
Method for controlling an intermediate stacking device for flat shipments |
Jan. 30, 2001 |
| 6032946 |
Document feeder |
Mar. 7, 2000 |
| 5988629 |
Control for a sheet stack supporting platform |
Nov. 23, 1999 |
| 5899448 |
Sheet feeding apparatus and method |
May. 4, 1999 |
| 5722653 |
Single-sheet feeder |
Mar. 3, 1998 |
| 5421571 |
Apparatus for the separate supply of film bags to a filing machine |
Jun. 6, 1995 |
| 5398924 |
Sensor for cyclically scanning the height of a pile |
Mar. 21, 1995 |
| 5295678 |
Control drive for a stack lift drive in sheet processing machines, more particularly sheet printing machines |
Mar. 22, 1994 |
| 5235907 |
Apparatus for stacking printed sheets for a screen process printing machine |
Aug. 17, 1993 |
| 5104109 |
Paper sheet delivery/stacking control system using fuzzy inference |
Apr. 14, 1992 |
| 5102112 |
Paper feeding device for image forming equipment |
Apr. 7, 1992 |
| 4960272 |
Bottom vacuum corrugation feeder stack height detection system calibration method |
Oct. 2, 1990 |
| 4928949 |
Low paper indicator |
May. 29, 1990 |
| 4888617 |
Sheet feeding mechanism for an image recording device |
Dec. 19, 1989 |
| 4815916 |
Apparatus for raising a magnetizable object from a stack and for moving it away for further processing |
Mar. 28, 1989 |
| 4770403 |
Paper feeder usable with a copier and others |
Sep. 13, 1988 |
| 4678175 |
Sheet money feeding machine with improved separation means |
Jul. 7, 1987 |
| 4671502 |
Method and apparatus for counting sheets which may be fed in skewed and/or overlapping fashion |
Jun. 9, 1987 |
| 4589645 |
Document set separator and stack height sensor |
May. 20, 1986 |
| 4585332 |
Electrophotographic printing machine with means for sensing size of document |
Apr. 29, 1986 |
| 4513956 |
Conveying device for sheets |
Apr. 30, 1985 |
| 4451191 |
Stacked fabric removal and re-locating device |
May. 29, 1984 |
| 4429408 |
Device for preventing faulty counting operations in a paper sheet counter |
Jan. 31, 1984 |
| 4397457 |
Sheet feeding apparatus |
Aug. 9, 1983 |
| 4397455 |
Document dispenser with escrow system |
Aug. 9, 1983 |
| 4386769 |
Automatic paper feeding arrangement |
Jun. 7, 1983 |
| 4316607 |
Paperboard feeding apparatus |
Feb. 23, 1982 |
| 4252251 |
Sheet-dispensing apparatus |
Feb. 24, 1981 |
| 4206912 |
Paper sensing mechanism |
Jun. 10, 1980 |
| 4200277 |
Flat pile-automatic sheet feeder |
Apr. 29, 1980 |
| 4106765 |
Sheet feeding apparatus |
Aug. 15, 1978 |
| 4049257 |
Document feeder apparatus |
Sep. 20, 1977 |
| 3994389 |
Mail stack feed control |
Nov. 30, 1976 |
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