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Class 340/675 - Web, film, or strip


Subclass of Class 340 - Communications: electrical
Definition: Subject matter where the moving object is a continuous web,
No. of patents: 111
Last issue date: 05/03/2011


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NumberTitleIssue Date
7936277Apparatus and method for width detection
An apparatus and method for detecting a difference in width of a strip of material from a desired width of material. The apparatus may comprise a light source, a light detector, an alarm, a first fiber optic cable coupled with the light source, a second fiber optic ...
05/03/2011
7436313Penetration screen
A penetration screen is disclosed which comprises a substantially planar substrate with, at least, one electrical circuit disposed thereon. The electrical circuit is configured such that, at least, one section of the circuit is electrically isolatable from the remai...
10/14/2008
7360348Method for controlling manufacture of a sheet material
A sorting and conveying line provided at an X-ray film cutting and collection operation includes a defective sheet gate, a collection gate and a sample gate for sorting X-ray film sheets, which have been cut to a predetermined size at a cutting section, while the X-...
04/22/2008
7130709Manufacturing information and alarming system and method
Systems and methods for providing alarming indications and troubleshooting indications and actions in connection with a web converting manufacturing process such as that used for manufacturing disposable absorbent garments. Some of the disclosed embodiments include ...
10/31/2006
6873264Method and apparatus for detecting angular phase difference
A rotational phase difference detecting system, a method that is capable of very accurately detecting a rotational phase difference between a plurality of rotating bodies, a machine operating-state monitoring system, and a method employing the rotational phase diffe...
03/29/2005
6828917Alarm system for casting mold
An alarm system for a casting mold is provided, which includes an alarm electrically connected to the casting mold; and at least one sensing unit electrically connected to the alarm, and spaced apart by a predetermined gap from a cast to be drawn from the casting mo...
12/07/2004
6774805Wrap material operation sensor for a round baler
An operation sensor for a wrap material dispensing system of a round baler. The operation sensor includes a rotatable member with which the wrap material is engaged, and which rotates along with the wrap material as the wrap material is fed to a wrap material feedin...
08/10/2004
6717521Laminator draw control
A thickness sensor for layered sheet material entering a lamination machine includes an arm movable upon interaction with the layered sheet material. A variable resistance output dependent upon the position of the arm controls the speed of rotation of heated rollers...
04/06/2004
6702229Method, apparatus and article to display flight information
Flight information is displayed using visual indications that resemble real world visual cues. For example, left and right side attitude displays extend vertically along each side of the windshield and a yaw display extends along a lower edge of the winds...
03/09/2004
6522260Portable panel position detector
A portable panel position detector for determining the orientation of panels being serially moved on a transfer line into a downstream panel treatment facility comprising a pair of support towers laterally spaced to allow the passage of line supported pan...
02/18/2003
6503007Printer ribbon motion detection system
A motion detector comprising a rotator member having at least one radially positioned member and being mounted for rotation from at least a first position to at least a second position; a detector member, preferably a Hall Effect sensor; and a magnet prod...
01/07/2003
6360181System and method for collecting data on product consumption
A system and method for collecting data on individual and aggregate use of various washroom products. The system includes one or more product dispensers having a sensor associated therewith for determining product usage. The sensor communicates usage info...
03/19/2002
6150946Monitoring unit with test beam in conjunction with packaging machines
Monitoring unit with one light beam for monitoring the postion of and/or forming material webs or blanks. Monitoring units of this type usually consist of a transmitter, for example, a LED and a receiver, for example, a photocell. The operation of the mac...
11/21/2000
5918197Monitor for collecting data on consumer consumption of disposable sheet products
A monitor for collecting data on consumer consumption of disposable sheet products is disclosed. The monitor comprises a working surface capable of supporting a stack of sheets thereon, a weight sensor, and a recorder. The stack of sheets comprises a plur...
06/29/1999
5878381System and method for collecting data on tissue consumption
A system and method for collecting data on individual and aggregate use of toilet tissue or other types of rolled absorbent paper in a public washroom includes a sensing system for sensing one or more characteristics of paper use at a particular dispensin...
03/02/1999
5691919System and method for collecting data on tissue consumption
A system and method for collecting data on individual and aggregate use of toilet tissue or other types of rolled absorbent paper in a public washroom includes a sensing system for sensing one or more characteristics of paper use at a particular dispensin...
11/25/1997
5677677System for monitoring the operation of an evaporator unit
The difference between the temperature of a heat exchange medium leaving the evaporator unit of a chiller and the temperature of the refrigerant in the evaporator unit is monitored relative to a real time alarm limit for this temperature difference. The r...
10/14/1997
5646794Metal detection apparatus for detecting metal objects in a web of photographic material
A photofinishing apparatus for reading and/or writing magnetic information on a web of photographic film. The web comprises a plurality of individual strips of film secured together end to end. The apparatus includes a film track for receiving the web, a ...
07/08/1997
5600308Method for detecting a position on a product
A method for removing a splice at a location on a tubular food casing product applies a tape to the food casing proximate the position of the splice, which tape has metallic properties. At least one of the metallic properties is detected when the tape rea...
02/04/1997
5531434Multiple page sensor for automatic document feeder
Page sensor apparatus for producing a signal related to a thickness of a sheet of paper may comprise a base plate and a foot plate positioned in opposed relation. The base and foot plates are arranged to allow the paper to pass therebetween, so that the b...
07/02/1996
5516094Linear array sensor for copy sheet registration
An electrophotographic printing machine of the type in which a leading edge and a trailing edge of a moving sheet are detected. The improvement includes an elongated light source that is of a length greater than that of an irregularity on the moving sheet...
05/14/1996
5435543Motion indicating device for moving objects
A motion indicating device used especially to monitor the movement of sheets of paper, which are moved via conveyor paths. A scanning device has a rotatably mounted scanning member, which lies on the scannable surfaces of the moving sheet of paper and is ...
07/25/1995
5289007Sheet break detector apparatus
A sheet break detector apparatus is disclosed for detecting a break in a sheet disposed contiguously between an upstream and a downstream felt of a paper machine dryer section. The detector apparatus includes an infrared light emitter disposed adjacent to...
02/22/1994
5280274Method of detecting residual amount of web roll
A method of measuring and expressing the unwound amount or residual amount of a web roll, such as carbon film roll or printing paper roll in terms of a unit length of the web roll includes the steps of: starting a count of pulses to be produced by a rotat...
01/18/1994
5225785Apparatus for sensing the thickness of a moving sheet of film
A rotatable capacitance sensor preferably constructed of a generally cylindrical body mounted on bearings to a carriage assembly. The body has a number of parallel, spaced apart conductive plates having edges extending through the exterior body surface, a...
07/06/1993
5212982Method and apparatus to check the acceptableness of the state of wear in the covering fabric of a driving belt
A method and apparatus for carrying out the checking of the state of wear of a covering fabric in a driving belt (2) mounted on a plurality of pulleys (3, 4, 5) by measuring the electric resistance variations of the belt fabric. The apparatus provides tha...
05/25/1993
5182722Apparatus for assessing the stiffness of a sheet
The invention relates to an apparatus (2) for assessing the stiffness of a sheet (4), such as a currency note, by measuring the extent and rate of movement of the trailing edge of the sheet (4) away from a feed path for the sheet. Such movement is part of...
01/26/1993
5182597Image forming device
A printing or copying apparatus of a type provided with a recording medium, operable device for forming an image on the recording medium, device for operating a first signal required for the timing operation of the operable device, keys for instructing to...
01/26/1993
5177446Device for monitoring the depletion of material uncoiling from rolls, applicable in particular to wrapping machines
A sensing facility that is integrated into a station from which strip material is fed to a wrap station, and/or into the roll and shaft from which the strip is effectively uncoiled, is designed to monitor an electrical impedance generated by the roll and ...
01/05/1993
5136526Determination of the thickness of a magnetic tape
To check the thickness of a magnetic tape in relation to preset tolerance limits in the course of the winding of the tape onto a hub of a tape cassette, the tape thickness is determined by means of a microprocessor from the number of revolutions of the hu...
08/04/1992
5089776Apparatus for detecting defects in a moving steel strip with a magnetizing yoke and a sensor placed on opposite sides of the strip
A magnetic defect detector having a pair of rotatable cylinders made of nonmagnetic material which pinch a running steel strip therebetween, two pairs of bearings being engaged with the end parts of the pair of cylinders. A pair of stationary shafts are r...
02/18/1992
5087027Document handler staple detector
A system for automatically detecting the presence of staples within a set of original document sheets loaded into a document handling tray and automatically inhibiting the operation of the document feeder to prevent damage to the document feeder or the or...
02/11/1992
5076566Self-calibrating system for detecting media movement by using capacitors as sensors
A sheet movement detection system for apparatus having a sheet feed path includes a first capacitor sensor including a first pair of parallel plate members located in opposing relation on opposite sides of the feed path plane at an upstream position and s...
12/31/1991
5036706Sonic web break detector
A web break detector which utilizes sonic signals to detect the occurrence of a break in a moving web in web handling machinery. A separate sonic transmitter and receiver transducer are utilized to provide improved speed of detection, and enhanced reliabi...
08/06/1991
5035415System for detecting the accurate positioning of sheets along a feed path by using capacitors as sensors
An improved sheet-position detection system for apparatus having a sheet feed path and a use location(s). The position detection system includes a first capacitive sensor including a first pair of parallel plate members located in opposing relation on opp...
07/30/1991
5027293Method and apparatus for analyzing machine control systems
A diagnostic system analyzes conditions of critical points in a production line. The diagnostic system generates an operator message based on the conditions it analyzes. A sensor senses the conditions of the critical points in the production line and gene...
06/25/1991
5023846Ultrasonic detector for detecting a thin film
The ultrasound detector for a thin film includes an ultrasound transmitter and an ultrasound receiver. It is generally known that a plastic film introduced into a sound field attenuates the field to a greater or lesser degree. A sound wave of a frequency ...
06/11/1991
5010494Method and apparatus for detecting mechanical roll imperfections in a roller drafting system
A drawframe is disclosed which has a plurality of sets of draw rolls and includes a provision for the early detection of imperfections in rotating elements in the drawframe. The separation of the pairs of rolls is monitored, and a signal representative of...
04/23/1991
4999611Towel cabinet replenishment indication and identification system
The system indicates which of a plurality of dispersed towel cabinets in a building have their clean towel webs soiled, and require towel roll replacement. A clean toweling supply roller system is mounted within each of the cabinets for web unwinding rota...
03/12/1991
4996557Jam detecting and displaying device in an image recording apparatus
An image recording apparatus has a jamming detecting and displaying device in which jamming detecting means detect the jamming of an image recording material in the apparatus, and jamming displaying means displays the position of the jamming and tells a p...
02/26/1991
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