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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7530198 | Swing door opening/closing detection system The present invention provides a swing door opening/closing detection system capable of accurately discriminating an opening/closing position of door main bodies to accordingly prevent the malfunction of the door main bodies. The swing door opening/closing detection... | 05/12/2009 |
| 7373754 | Safety edge for horizontally pivoted rolling gates A safety edge element made of flexible material includes a flat electric conductor, a rounded electric conductor as well as a first portion and a second portion. The first portion includes a base for the connection to a door or gate, a top with a seat to receive the... | 05/20/2008 |
| 7356966 | Railroad grade crossing assembly An articulate railroad grade crossing assembly. In a preferred embodiment, the crossing assembly has an adjustable reach so that it can be adjusted to completely or partially close roadways of various sizes. In another preferred embodiment, the assembly includes one... | 04/15/2008 |
| 7342374 | Automatic gate operator A barrier movement operator is having a position sensor in a telescoping barrier control arm is described. A controller, remote from the arm, senses the barrier position to identify limits of barrier travel and to control rate of travel of the barrier between limits... | 03/11/2008 |
| 7330007 | Object detecting apparatus An object detecting apparatus includes a piezoelectric sensor provided at an edge portion of an opening/closing body for emitting an output voltage which changes corresponding to an external force applied to the edge portion and a detection circuit for receiving the... | 02/12/2008 |
| 7319301 | Differential anti-pinch capacitive sensor A proximity sensor for sensing an object in the path of or proximate to a closure panel such as a vehicle window. First and second electrodes encased in a non-conductive casing are mounted on the metallic structure near the closing edge of the aperture. The two elec... | 01/15/2008 |
| 7282879 | Bi-directional sensing edge for gate A bi-directional sensing edge includes a mounting member for securing the sensing edge to a leading member of a gate. An elongate outer sheath has at least first and second portions each respectively corresponding to first and second sides of the leading member. An ... | 10/16/2007 |
| 7219945 | Power lift gate for automotive vehicle A powered lift gate for an automotive vehicle includes a lift gate door hinged to a vehicle body. A motor system which opens and closes the door is operated by a controller coupled to a primary obstacle detection system which senses operation of the motor itself, an... | 05/22/2007 |
| 7151450 | Door with a safety antenna A door system includes an antenna-based proximity sensor with a releasable electrical connector that enables the sensor to function with a breakaway feature of the door. The sensor includes a signal generator and a door-mounted antenna for sensing a body or an obstr... | 12/19/2006 |
| 7132813 | System and method for adapting to barrier nuisances and obstructions A barrier movement operator moves a barrier between open and closed positions. The operator receives a first request to move the barrier. The actual force required to move the barrier is measured. An obstruction to barrier movement is determined by comparing the mea... | 11/07/2006 |
| 7109677 | Motorized barrier operator system for controlling a barrier after an obstruction detection and related methods A method for controlling a motorized barrier operator after detecting an obstruction includes the steps of providing a motorized barrier operator that moves a barrier between limit positions and providing at least one control switch that upon actuation moves the bar... | 09/19/2006 |
| 7086585 | Media dispenser apparatus A media dispenser comprises: a casing separatably installed on a mounting portion of a media dispenser having an eject hole through which media is ejected, and including a media receipt portion on which the media ejected from the eject hole is mounted and an opening... | 08/08/2006 |
| 7066297 | Automatic door and method of operating same An automatic door and method of operating the same. The door includes a first processor which may be located proximate a leading movable edge of the door and a second processor which is remotely located from the first processor. The first and second processors are o... | 06/27/2006 |
| 7045764 | Passive detection system for detecting a body near a door A detection system for detecting a body near a doorway includes two detectors having one or more activation lines that overlap each other. With certain mounting arrangements, the detectors cover areas within and on both sides of the doorway. The detectors are meant ... | 05/16/2006 |
| 7034682 | Door with a safety antenna A door system includes an antenna-based proximity sensor with a releasable electrical connector that enables the sensor to function with a breakaway feature of the door. The sensor includes a signal generator and a door-mounted antenna for sensing a body or an obstr... | 04/25/2006 |
| 7015666 | Device for sensing an obstacle in the opening range of a closure element of a motor vehicle A device for sensing an obstacle in said opening range of an automotive closure element movable between an open position and and closed position, more particularly an electrically powered door window (20) or sunroof is provided with a weatherseal (30) ... | 03/21/2006 |
| 7005983 | Methods and apparatus for detecting refrigerator door openings A detection apparatus for detecting refrigerator door openings is coupled to at least one switch configured to be activated by a door opening. When the door is opened, the switch is activated and inputs a signal to the detection apparatus. The detection apparatus re... | 02/28/2006 |
| 6964289 | Industrial door system responsive to an impact An impact sensing system for a powered roll-up door combines an electrical switch and a breakaway coupling. To avoid damage or injury resulting from the door's roll-up curtain accidentally closing upon an obstacle or something striking the curtain, the breakaway cou... | 11/15/2005 |
| 6946853 | Non-contact proximity sensor A controller for a vehicular power accessory includes an elongate sensor electrode (102), a capacitive shield (104) extending significantly beyond the sensor electrode (102). A dielectric (106) is disposed between the capacitive shield ( | 09/20/2005 |
| 6929323 | Seat There is provided a seat preventing the baggage or the like from being damaged. A leg rest strain gauge is provided on the bark surface of the leg rest frame on the proximal side. When a baggage is placed in the operating space of the leg rest in the bed position, a... | 08/16/2005 |
| 6920717 | Non-contact sensor system and mounting barrier A non-contact sensor system controls movement of a door moving in a first direction. The system includes a rigid mounting bracket attached to a leading edge of the door, a transmitter extending a distance beyond a leading edge of the door at a first door end for tra... | 07/26/2005 |
| 6851222 | Safety edge for horizontally pivoted rolling gates The invention relates to a safety edge for horizontally pivoted rolling gates actuated by a motor unit. It consists of a profile (11) made of rubber or other soft flexible material and having a base (14) for its application to a rolling date, and of tw... | 02/08/2005 |
| 6834740 | Vehicle entrance-door safety-system An entrance-door safety-system for a vehicle that includes a contact-sensing door-edge attachment that is adapted to be mounted to a door edge of a door panel of the vehicle. The entrance-door safety-system also includes a door-safety-logic system that is constructe... | 12/28/2004 |
| 6737968 | Movable barrier operator having passive infrared detector A wall control unit for a movable barrier operator sends baseband signals over a wire connection to a head unit of a movable barrier operator to command the movable barrier to perform barrier operator functions. The wall control unit has a wall control unit port for... | 05/18/2004 |
| 6732476 | Wireless barrier-edge monitor method A remote unit (14) couples to an obstacle detection sensor (13) to both detect an obstacle in the path of a movable barrier (11) and operability of the obstacle detection sensor (13) itself. Information regarding these and, optionally, ot... | 05/11/2004 |
| 6723933 | Flexible capacitive strip for use in a non-contact obstacle detection system A flexible, capacitive strip for use in a non-contact obstacle detection system is disclosed. In an exemplary embodiment, the strip includes an elongated body for flexible mounting to a panel along a bottom surface of the elongated body. A first elongated planar con... | 04/20/2004 |
| 6676186 | Motor vehicle with a tailgate A vehicle with a tailgate (5) or the like, the vehicle being defined in that the tailgate (5) has a sensor for sensing objects at least during the opening operation.... | 01/13/2004 |
| 6651385 | Retractable non-contact sensor system A non-contact sensor system controls movement of a door moving in a first direction by actuation of a device. The system includes a transmitter extending a predetermined distance beyond a leading edge of the door at a first door end for transmitting a sig... | 11/25/2003 |
| 6571512 | Universal sensing edge with non-melt end closure A sensing edge for actuating a device to cause a closing door to stop closing upon a force being applied to the sensing edge. The door has a sensing edge surface, which includes an elongated sheath positioned adjacent to the leading edge surface of the do... | 06/03/2003 |
| 6568130 | Safety contact rail including a freely moving contact element and hollow profile situated thereabout A safety contact rail for a movable closing mechanism includes a hollow profile having a deformable region, an electrically-conductive area positioned along an inner surface of the hollow profile and a contact element that is positioned therein to be free... | 05/27/2003 |
| 6539678 | Vehicle service bay A pre-fabricated service bay used for providing service access to the underside of vehicles. The service bay is fabricated as a single monolithic unit and then positioned in an excavated hole within a service building. The service bay has multiple safety ... | 04/01/2003 |
| 6525651 | Force-responsive detectors and systems A force-responsive sensor is disclosed, such as for incorporation in a safety system for detecting an obstruction in a window opening closable by a motorized slidable window pane. The sensor is mounted within a hollow volume in flexible material running a... | 02/25/2003 |
| 6481157 | Safety device for a closure including a plurality of contact elements A closing edge safety device that consists of a safety strip (1) that has an electric switching device which is made up of a plurality of contact elements (2) that are arranged next to each other in a flexible tube (3). The contact elements (2) can be mag... | 11/19/2002 |
| 6452353 | System for detection of obstructions in a motorized door system Method of detecting obstructions encountered by a motorized door. The method includes providing a signal processor with one or more signals indicative of a predetermined door trajectory profile for at least a segment of a stroke of the door, the door traj... | 09/17/2002 |
| 6445152 | Door control system Method of controlling a motorized door by offloading the burden to a separate motion control processor. The method includes generating, in a central processor for the door, one or more signals indicative of a predetermined door speed profile for a stroke ... | 09/03/2002 |
| 6427382 | Dual safety-edge for an overhead door A door assembly comprising a door body having a bottom edge is disclosed. The door body is selectively movable up and down to open and close an opening. The door assembly further comprises a safety edge attached to the bottom edge of the door body, the sa... | 08/06/2002 |
| 6339305 | Automatic opening and closing device An automatic opening-and-closing device can be obtained which can prevent a foreign object from being caught in by detecting the foreign object even if an opening/closing speed of a moving body changes or the foreign object is small. An automatic sliding ... | 01/15/2002 |
| 6286257 | Overhead door with dual safety-edge A door assembly comprising a door body having a bottom edge. The door body is selectively movable up and down to open and close an opening. The door assembly further comprises a first sensor body and a second sensor body. Each sensor body is in communicat... | 09/11/2001 |
| 6246194 | Method and system for detecting an object in an automotive window A method and system for directly determining the presence of an object between a window and its respective frame during closing of the window is disclosed. A sensor is provided within the frame to determine a length of the frame being compressed when the ... | 06/12/2001 |
| 6243006 | Safety device for motor-operated systems A safety device for externally driven systems for protecting the movement of a system component against undesired collision with an object lying in the movement path of the system component is described, the system component to be monitored being capable ... | 06/05/2001 |
