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| Number | Title | Issue Date |
| 7232236 | Floor marking apparatus and system, and method of marking a floor A floor marking system includes a floor having a predetermined location intended for use of a predetermined character, the predetermined location being marked with impinging light. The floor marking system also includes a lighting unit having a light source for mark... | 06/19/2007 |
| 7233112 | PWM switching power supply control methods The solid state switching section of a high frequency PWM switching power supply may encounter problems in accurately regulating output power when the requested output power is above a threshold level, the threshold level typically being a high level approaching one... | 06/19/2007 |
| D524329 | Bulb drill tool | 07/04/2006 |
| D524328 | Soil tilling tool | 07/04/2006 |
| 7036799 | Railing assembly A structural glass panel railing includes glass panels supported on a floor by a base assembly including a railing support assembly. The railing support assembly includes a shoe fastened to the floor, a base member locked to the shoe by a cam lock lever and a channe... | 05/02/2006 |
| 7033047 | Compact shutter assembly for a luminaire A shutter section includes a stack of circular plates independently rotatable in a nest formed as a laminar formation of rings. The plates have central openings defining a light path. Four central plates in the stack are shutter guide plates with radial guide slots ... | 04/25/2006 |
| 7019469 | Sinewave dimmer control method An input line filter separates an ac sinusoidal power source from a power switching stage having a series switching section and a clamp switching section. Both the series switching section and a clamp switching section include complementary pairs of high power and h... | 03/28/2006 |
| D516410 | Bolt snap | 03/07/2006 |
| 6979106 | Control system for optical media in a luminaire A zoom lens system includes a motor driven lens assembly that is movable on a track in a normal movement range for adjusting the light beam range angle of a luminaire. A pair or doors are pivoted to opposite sides of the frame of the lens assembly and are normally b... | 12/27/2005 |
| D510688 | Weed extraction tool | 10/18/2005 |
| 6951255 | Weed extraction tool A rotatable shaft has a claw structure near its lower end. The claw structure includes a first blade that is fixed relative to the shaft and a second blade that is movable relative to the first blade. The first, fixed blade is provided by the pointed lower end of th... | 10/04/2005 |
| 6939026 | Shutter assembly for a luminaire A shutter section includes a stack of circular plates independently rotatable in a nest formed as a laminar formation of rings. The plates have central openings defining a light path. Four central plates in the stack are shutter guide plates with radial guide slots ... | 09/06/2005 |
| 6932491 | Lamp assembly and lamp for a luminare A theatrical luminaire for entertainment and architectural applications includes a lamp socket accessible from the exterior of the luminaire housing. A lamp includes a base, a bulb on one side of the base and a handle on the other side. The handle is grasped to inse... | 08/23/2005 |
| 6903531 | Circuit for driving a stepper motor and method of controlling a stepper motor driver A driver circuit is provided for a stepper motor which utilizes a processor that outputs a PWM signal. The driver circuit includes an H-bridge circuit having first and second inputs, and a switching circuit having an input and an output. The first H-bridge input and... | 06/07/2005 |
| 6902302 | Gel scroller assembly for a luminaire A cassette containing a gel scroll is releasably attached to the forward portion of a housing of a luminaire. A light path through the cassette is aligned with a light exit opening of the luminaire. A gel scroll is wound upon a pair of drums in the cassette and inte... | 06/07/2005 |
| 6849943 | Power module package for high frequency switching system A heat sink with fins has a flat, planar surface soldered to a metallic layer at one surface of a flat, planar ceramic layer. The opposite surface of the ceramic layer has a metallic pattern including base areas for high power, high frequency load switching MOSFETs.... | 02/01/2005 |
| 6845528 | Test plug assembly for a bath tub For pressure testing a drain and vent piping system communicating with a tub opening having an anchoring structure a plug has a central, axially extending aperture therethrough. The plug has a resilient, compressible portion and is provided with inner and outer ends... | 01/25/2005 |
| D501244 | Combined tub filler and overflow assembly | 01/25/2005 |
| 6823539 | Cascading tub filler and overflow assembly An inner and an outer body are clamped toward opposite faces of a tub wall over a tub overflow opening. Excess water flows from the tub through an overflow outlet water passage extending through the inner and outer bodies. A water inlet passage has an inlet in the o... | 11/30/2004 |
| 6813998 | Pad printing machine A printing plate is supported on a table slideably mounted on a frame for forward and back horizontal movement. A table lever has a handle moving in a vertical plane to slide the table for inking an image on the plate with an inverted ink cup or for moving the inked... | 11/09/2004 |
| 6707256 | Dimmer pack A self contained multiple dimming channel package includes a housing with a main power circuit board supported on its bottom wall and a control circuit board extending laterally and vertically to baffle air flow through the housing. A cross flow cooling fan forces a... | 03/16/2004 |
| 6705921 | Method and apparatus for controlling cutting tool edge cut taper A tilt control assembly for controlling the tilt of a cutting tool head has a first eccentric support and a second support, with both of the first and second supports connected to the head along an axis of the head. To adjust the position of the head, the first ecce... | 03/16/2004 |
| 6666065 | Probe tip alignment for precision liquid handler A probe drive system of a precision liquid handler sequentially inserts probe tips of a multiple probe array into a locator well at a known position on a locator bed. The position of each probe tip is determined by driving the probe tip into contact with ... | 12/23/2003 |
| 6628089 | Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer Power for one or more luminaire accessories is extracted from a series of lamp operating pulses provided by a phase angle dimmer. A DC power supply is connected to the output of the dimmer to develop and store DC accessory power. A lamp controller is conn... | 09/30/2003 |
| 6419209 | Railing assembly A structural glass panel railing includes glass panels supported on a floor by a base assembly including a railing support assembly. the railing support assembly includes a shoe fastened t the floor, a base member locked to the shoe by a cam lock lever an... | 07/16/2002 |
| 6419086 | Rack for multichannel pipette cones A rack for pipette cones (in particular multichannel cones) includes orifices in a line forming at least one row along at least an alignment direction and a support surface adapted to support cones housed in the orifices. The rack provides for simultaneou... | 07/16/2002 |
| 6416719 | Plate locator for precision liquid handler A locator bed has nests where sample well containing plates are held and positioned for accessing by probes moved by an X-Y-Z positioning system. Each nest includes stop posts at two sides of a rectangular base of a plate, and biasing posts at the opposed... | 07/09/2002 |
| 6394103 | Dental flossing tool A mechanism with a handle supports a pair of forwardly extending arms with a pair of guides flanking a flossing gap at the front of the tool. Clamp members anchor ends of a length of floss at the handle. An adjuster is moved to alter the length of the flo... | 05/28/2002 |
| 6341490 | Heat transfer apparatus for sample containing well plates A thermal transfer comb includes numerous upwardly extending pins received in spaces around and between the sample containing wells of a well plate. Peltier effect modules are in contact with a base panel of the thermal transfer comb to apply heat to or r... | 01/29/2002 |
| 6283832 | Surface treatment method with rapid repetitive motion of an ultra high pressure liquid stream A workpiece surface is treated in a cleaning, polishing or milling or similar surface treatment operation by a waterjet head. The head is located near the workpiece surface with its axis intersecting the workpiece surface and is held so that it dies not r... | 09/04/2001 |
| 6240984 | Foot seal for liquid handler An automated liquid handler includes a probe assembly with a probe foot that can be moved down against the top of sample containers of a variety of sizes and shapes defined by racks, tubes or plates. A seal at the bottom of the foot provides a seal betwee... | 06/05/2001 |
| 6237638 | Manifold assembly for a gas range A manifold tube is formed from a straight length of thin wall tube initially having a uniform circular cross section. A first segment of the tube is left in its initial circular cross section configuration. The first segment includes an inlet end of the t... | 05/29/2001 |
| 6237904 | Motion stabilizer A motion stabilizer for yieldingly urging a relatively movable load member toward a normal or centered position relative to another load member includes a telescoping body that shortens (retracts) as the load members move toward one another and lengthens ... | 05/29/2001 |
| 5732215 | System for equalizing operating temperature by allocating infrequently accessed data to the high temperature DASD and allocating frequently accessed data to the low temperature DASD An array of direct access storage devices (DASD's) such as disk drive units includes a temperature sensor for sensing the operating temperature of each DASD. The operating temperatures of the DASD's of the array are equalized by allocating frequently acce... | 03/24/1998 |
| 5630469 | Cooling apparatus for electronic chips A circuit board mounted integrated circuit chip such as a processor is cooled by apparatus including a heat sink, a shroud and a fan. The heat sink includes a base placed on the top surface of the chip and fins extending up from the base. The shroud inclu... | 05/20/1997 |
| 5593341 | Method for manufacturing a disk drive unit having magnetic disks with textured data areas and head landing zones A disk drive unit includes a housing enclosing a spindle and motor assembly, a number of magnetic data storage disks and a number of transducer heads. Each magnetic data storage disk includes a surface with a coarsely textured head landing zone and a fine... | 01/14/1997 |
| 5418436 | Motor starting method and apparatus A method for starting and operating an electric motor such as the spindle motor of a disk drive assembly employs a segmented stator winding. On startup, the winding segments are connected in series in order to maximize torque. Motor speed is detected, and... | 05/23/1995 |
