Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7365955 | Material processing machine A material processing machine such as a wood chipping machine, a press, a cane cutting machine or other machine comprising an operating region having at least one processing element and an access region through which material passes to the operating region, has at l... | 04/29/2008 |
| 7341469 | Adapter for a recessed lamp An adapter for providing a recessed lamp in a screw-type lampholder. This adapter has an electrical contact-making device, via which an electrical connection is produced between a screw base, which can be introduced into the screw-type lampholder, of the adapter and... | 03/11/2008 |
| 7327335 | Display device and an electronic apparatus using the same In a conventional display device comprising a sub-display, the display device is increased in thickness and in the number of components as the number of displays is increased. In the present invention, a dual emission display device is used so that either surface of... | 02/05/2008 |
| 7286904 | Systems and methods for adaptation to wireless remote control of irrigation valves from existing hardwired control devices A low cost system and method for retrofitting an existing control device to communicate wirelessly with one or more water-flow devices is provided. For example, an existing wired irrigation system may be adapted to allow wireless communication between a commercially... | 10/23/2007 |
| 7218498 | Touch switch with integral control circuit A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad, an electric field generated about the touch pad and also having a preferably integrated and local control circuit connected to the touch pad... | 05/15/2007 |
| 7202796 | Device and method for triggering a sensor for cables In order to provide a triggering signal for a cable stripping device that is also capable of dealing with very thin wires, it is suggested to use a piezoelectric sensor, the output signal from which is forwarded to an electronic evaluation unit. The electronic evalu... | 04/10/2007 |
| 7193833 | Electric switch An electric switch (1) comprising a capacity sensor circuit (2) provided with a signal input (3) arranged to be connected to an actuating line, and which is provided with a relay device (4) arranged to feed a current to a load line (7 | 03/20/2007 |
| 7177132 | Method and apparatus for determining a switching signal state A technique for controlling a switching circuit includes one or more sensing circuits that generate signals based upon the presence of an actuating object and upon a randomly applied strobe signal. The generated signals are sampled and are used as a for determining ... | 02/13/2007 |
| 7167987 | Use of biometrics to provide physical and logic access to computer devices Biometric sensors are used to control physical and logical access to various computer components or subsystems comprising a computer system. The biometric sensors may comprise fingerprint scanners, iris scanners or any other type of biometric sensor that can uniquel... | 01/23/2007 |
| 7145329 | Manually operated working tool The present invention relates to a manually operated working tool such as an internal combustion operated setting tool for driving in fastening elements such as nails, bolts, pins into a magnetizable substrate, having an inductive metal detector assembly (20)... | 12/05/2006 |
| 7128597 | Flat circuit connector with magnetized actuator An electrical connector is provided for terminating a flat electrical circuit. The connector includes a dielectric housing having an opening for receiving an end of a flat circuit. A plurality of terminals are mounted on the housing and have contact portions exposed... | 10/31/2006 |
| 7124872 | Safety device for industrial machines A safety device, particularly for industrial machines, such as for example bending presses provided with an upper tool that is driven in abutment toward a lower die, at least one blank, such as a metal plate, a bent plate or a box-like element, being interposable be... | 10/24/2006 |
| 7097331 | Safety switch control structure A safety switch control structure for a lamp device, including outer mask shell for lamp device, lamp mask, fixing rack and interlock, wherein the fixing rack installed underneath the lamp device outer mask shell is equipped with interlock, the interlock is undernea... | 08/29/2006 |
| 7098674 | Occupant sensor An oscillatory or pulsed first signal is operatively coupled to a first electrode placed between a conductive heating element and a seating region of a seat containing the heating element. A second signal substantially equal to the first signal is operatively couple... | 08/29/2006 |
| 7082023 | Method and circuit arrangement for function monitoring of an electronic-mechanical position switch In a method for function monitoring of an electronic-mechanical position switch in which the wiper voltage of a potentiometer acted upon by an actuation tappet is evaluated in comparison to a threshold value in order to activate or deactivate electronic contacts, du... | 07/25/2006 |
| 7076270 | Docking station for wireless communication device A docking station for a wireless communications device includes a support structure that includes a cradle for the wireless telephone. The docking station includes a switch, sensor or other detection mechanism that detects when the wireless communication device is d... | 07/11/2006 |
| 7076381 | Adaptive proximity sensing Some embodiments provide a sensor element, a shield element capacitively coupled to the sensor element and to ground, a coupling circuit to receive an input signal, and to electrically couple the received input signal to the sensor element and to the shield element,... | 07/11/2006 |
| 7038895 | Apparatus for detecting abnormality of relay An abnormality detection apparatus, which reduces erroneous detection of an open abnormality of a relay, includes a microcomputer that activates the relay and determines whether the output voltage of the relay is less than a threshold value. When the output voltage ... | 05/02/2006 |
| 7013163 | Portable wireless communication device docking system A docking station for a wireless communication device, such as a cellular telephone. The docking station includes a cradle for the cellular phone and comprises an associated LCD that enhances the video display capabilities of the cellular telephone. When docked, the... | 03/14/2006 |
| 6969811 | Foot switch structure of extension cord receptacle An improved foot switch structure of an extension cord receptacle comprises a base. The base has thereon a control switch, wherein the control switch is connected to a power conducting wire. The power conducting wire has one end connected to a power plug and the oth... | 11/29/2005 |
| 6954938 | Apparatus and method to transport a data storage medium disposed in a portable carrier A portable carrier for a data storage medium is disclosed. An accessor which includes an electromagnet and a fixturing assembly is disclosed. A data storage and retrieval system which includes at least one of Applicants' carriers and at least one of Applicants' acce... | 10/11/2005 |
| 6900728 | System to detect user entry into a defined danger zone A system and method for detecting user entry into a defined danger zone surrounding a saw blade includes a non-conducting member defining an opening therein for receiving a saw blade. The non-conducting member may comprise, for example, an insert received by an open... | 05/31/2005 |
| 6885365 | Glass touch sensing circuit A glass touch sensing circuit which is capable of accurately detecting a sense signal resulting from a user's touch under no influence of variations in temperature. The glass touch sensing circuit is adapted to compare the level of an output signal from a switching ... | 04/26/2005 |
| 6853531 | Material processing machine A material processing machine such as a wood chipping machine, a press, or other machine comprising an operating region having at least one processing element, and an access region through which material passes to the operating region, has at least one passive senso... | 02/08/2005 |
| 6744391 | System for sampling a signal in an electronic instrument using a unipolar A/D converter The system includes a unipolar A/D converter, which samples analog signal inputs thereto, the A/D converter being used in a protective relay for electric power systems. The unipolar A/D converter is responsive to input voltage values and current values from the powe... | 06/01/2004 |
| 6717514 | Alarm system and method An alarm system and method is provided for preventing injuries as may occur within a manufacturing plant using lathes, milling equipment, metal shears and other machinery. The alarm system is so positioned to allow safe operation of the machinery while tracking the ... | 04/06/2004 |
| 6683778 | Device for use in electric vehicles for detecting adhesion in relay due to melting A relay adhesion detecting device (10) of the invention is installed in an electric motor vehicle wherein a relay (14) is provided between a power source unit (12) comprising a plurality of secondary batteries and a load circuit including an electric moto... | 01/27/2004 |
| 6664661 | Proximity switch A proximity switch is described, specifically a capacitive proximity switch, with two signal transmitters (1, 2) and with one signal receiver (3), a first signal output (4, 5) of each of the two signal transmitters (1, 2) being connected to one another an... | 12/16/2003 |
| 6647133 | Fingerprint identification device-equip with a touch sensor for detecting a human finger A fingerprint identification device judges that the input fingerprint is identical to the fingerprint in the database only when a the touch sensor detects the human finger and a the fingerprint processing unit detects that the input fingerprint is identic... | 11/11/2003 |
| 6452501 | Automatic shut-off and indication device for an electric heating appliance and electric pressing iron comprising such a device An automatic shut-off and indication device for an electric heating appliance is provided which includes: a sensor (2) for sensing usage of the appliance and for providing a usage-signal (US) indicating a non-usage of the appliance; a switch (10) for off-switc... | 09/17/2002 |
| 6442013 | Apparatus having capacitive sensor An electronic device (1), e.g. a mobile telephone having a front cover (6) and a capacitive proximity sensor, comprising: a first electrode (9; 27) and a second electrode (8; 21, 20), said first electrode having a large face (11, 12, 13; 29); and detector... | 08/27/2002 |
| 6418004 | Safety system utilizing a passive sensor to detect the presence of a hand of a worker and provide a signal to interrupt the operation of a machine A safety system for a machine such as a wood chipping machine. The safety system has a passive sensor that may be worn on the machine operator's wrist, a sensing coil mounted to a feed chute of the machine for detecting the proximity of the passive sensor... | 07/09/2002 |
| 6411288 | Fold-down flat panel display device A flat panel display device including a panel unit for displaying an image, a main body unit controlling an image displayed on the panel unit, and a folder connecting the panel unit and the main body unit.... | 06/25/2002 |
| 6366442 | Vehicular input device including single manual operating unit for operating various electronic devices mounted on vehicle A vehicular input device is disclosed which can afford a high stability of movable portions and an excellent power saving characteristic without impairing the operability of a manual operating unit. A mechanical portion of the vehicular input device is pr... | 04/02/2002 |
| 6335855 | Battery powered programmable remote switch controller A battery powered radio programmable remote switch controller and a separate hand held programming unit (programmer) designed to conserve the life of the life of the controller batteries using a combination of low voltage circuitry in the controller and a... | 01/01/2002 |
| 6281803 | Control mat monitoring and warning apparatus and method A control mat monitoring and warning apparatus and method in which the resistance of a control mat is monitored continuously while the mat remains in use. Deviations of the pattern of control mat resistance values in use from a nominal range of acceptable... | 08/28/2001 |
| 6274829 | Wireless inductive coupled switch A device is provided for allowing detection of a switch closure across an air gap between components. The device comprises a wireless inductive coupled switch designed for use with any suitable proximity sensor. The switch and sensor transmit a switch clo... | 08/14/2001 |
| 6212052 | Contactless safety switch The invention relates to a contactless safety switch for detecting the shut position of a shutting part in relation to a closeable part, with a switch unit, supplied with current by an electrical supply source on one of the parts and with a trip arranged ... | 04/03/2001 |
| 6176207 | Electronically controlling the landing of an armature in an electromechanical actuator Sensing magnetic flux in an electromechanical actuator having dual axially opposed stators and dual springs, a control system modifies the rise of flux in such a manner to produce a substantially zero velocity landing of an armature against the stators. T... | 01/23/2001 |
| 6160322 | Pulse signal generation method and apparatus A pulse signal generator comprises a magnetic element capable of causing a large Barkhausen jump, a detector provided in relation to the magnetic element, a magnetic field source provided in the vicinity of the magnetic element to produce a biasing magnet... | 12/12/2000 |