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Class Information
Number: 250/224
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Controlled by article, person, or animal > Inanimate article > Article and light ray relatively moved during sensing
Description: Subject matter having means for causing relative movement between the inanimate article and the light ray while the article is in the light path between light source and photocell.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7446302 |
Optical vend-sensing system for control of vending machine |
Nov. 4, 2008 |
| 7447605 |
System and method for calibrating a vending apparatus |
Nov. 4, 2008 |
| 7436316 |
Method and system to detect tampering using light detector |
Oct. 14, 2008 |
| 7409906 |
Optical sensor apparatus and method for sensing ink errors in optical disk manufacturing |
Aug. 12, 2008 |
| 7405676 |
Method and system for detecting with laser the passage by a vehicle of a point for monitoring on a road |
Jul. 29, 2008 |
| 7388486 |
Method and system to detect tampering using light detector |
Jun. 17, 2008 |
| 7343220 |
Optical vend-sensing system for control of vending machine |
Mar. 11, 2008 |
| 7306239 |
Height control system and sensor therefor |
Dec. 11, 2007 |
| 7265370 |
Sensing light |
Sep. 4, 2007 |
| 7173233 |
Counter |
Feb. 6, 2007 |
| 6979815 |
Folding apparatus of a web-fed printing press including a conveyor belt monitoring device |
Dec. 27, 2005 |
| 6900795 |
Unitary molded lens filter for touch screen interface |
May. 31, 2005 |
| 6884989 |
Overhead-traveling carrying apparatus |
Apr. 26, 2005 |
| 6794634 |
Optical vend-sensing system for control of vending machine |
Sep. 21, 2004 |
| 6785635 |
Apparatus and method for predicting failures of spinning disks in turbo-machinery |
Aug. 31, 2004 |
| 6779760 |
Safety system for overhead transport vehicle |
Aug. 24, 2004 |
| 6707027 |
Method of measuring the movement of an input device |
Mar. 16, 2004 |
| 6504144 |
Overhead-traveling carrying apparatus |
Jan. 7, 2003 |
| 6317514 |
Method and apparatus for inspection of patterned semiconductor wafers |
Nov. 13, 2001 |
| 6055059 |
System and method for measuring the density of fibers projecting from a planar surface |
Apr. 25, 2000 |
| 5909210 |
Keyboard-compatible optical determination of object's position |
Jun. 1, 1999 |
| 5880954 |
Continous real time safety-related control system |
Mar. 9, 1999 |
| 5837997 |
Structure and method for detecting plants in a field using a light pipe |
Nov. 17, 1998 |
| 5804830 |
Three-dimensional non-contact scanning apparatus and method using at least one circular, planar array of a plurality of radiant energy sensors, and a rotating energy source |
Sep. 8, 1998 |
| 5760413 |
Method and apparatus for inspecting pipe thickness |
Jun. 2, 1998 |
| 5745050 |
Obstacle detection apparatus for vehicles |
Apr. 28, 1998 |
| 5719679 |
Method and apparatus for inspecting a rotating medicine vial with cameras |
Feb. 17, 1998 |
| 5686729 |
Device for counting products stacked side-by-side |
Nov. 11, 1997 |
| 5636026 |
Method and system for contactless measurement of railroad wheel characteristics |
Jun. 3, 1997 |
| 5631460 |
Sorting machine using dual frequency optical detectors |
May. 20, 1997 |
| 5615777 |
Egg candling system |
Apr. 1, 1997 |
| 5606129 |
Process for scanning inspection of rotationally symmetrical, particularly cylindrical, receptacles using a dynamic gas bearing, and inspection device for said process |
Feb. 25, 1997 |
| 5507455 |
Automatic control device for flying state of remote-control toy airplane |
Apr. 16, 1996 |
| 5508512 |
Sorting machine using dual frequency optical detectors |
Apr. 16, 1996 |
| 5440397 |
Apparatus and method for exposure |
Aug. 8, 1995 |
| 5422476 |
Glass container inspection machine |
Jun. 6, 1995 |
| 5206627 |
Substrate detecting system with edge detection, such as wafer or base material of semiconductor device or LCD |
Apr. 27, 1993 |
| 5179474 |
Viewer for a sorting machine |
Jan. 12, 1993 |
| 5035476 |
Confocal laser scanning transmission microscope |
Jul. 30, 1991 |
| 4979387 |
Pendulum position detector |
Dec. 25, 1990 |
| 4873651 |
Method and apparatus for reconstructing three-dimensional surfaces from two-dimensional images |
Oct. 10, 1989 |
| 4841283 |
Security hinge utilizing concealed radiative sensing to detect hinge position |
Jun. 20, 1989 |
| 4777610 |
Thickness monitor |
Oct. 11, 1988 |
| 4751386 |
Lean detector for determining the offset of an axis of symmetry of a container from its norm |
Jun. 14, 1988 |
| 4746770 |
Method and apparatus for isolating and manipulating graphic objects on computer video monitor |
May. 24, 1988 |
| 4745631 |
Flying spot generator |
May. 17, 1988 |
| 4739175 |
Apparatus for inspecting configuration of terminal legs of an electronic device |
Apr. 19, 1988 |
| 4717026 |
Container scanning and accounting device |
Jan. 5, 1988 |
| 4679158 |
Automatic mirror rotating system |
Jul. 7, 1987 |
| 4629902 |
Device for measuring web tension |
Dec. 16, 1986 |
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