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Attorney: William A. Birdwell & Associates


Number of patents: 58
Last date: May 16, 2000

1    
NumberTitleIssue Date
6063336Method and apparatus for wood chip pasteurization
A method and apparatus for pasteurizing comminuted wood. A housing is substantially sealed over the hatch of a ship's cargo hold before it is opened. The hold contains comminuted wood for transport, which are typically contaminated with pathogens that it ...
05/16/2000
5937515Reconfigurable circuit fabrication method
A method of manufacturing electronic circuitry and the resulting hardware is described in which a conduction plate is formed achieving separate electrical conducting paths for application specific signals is engaged with an electronic circuit package cont...
08/17/1999
5877876Diffractive optical switch with polarizing beam splitters
A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a...
03/02/1999
5868776Overlay dual balloon catheter and method for use thereof
An overlay dual balloon catheter. Two balloons composed of differing materials are employed, the balloons being disposed so as to overlap one another but not being bonded to one another, so that adjacent surfaces of the two balloons are permitted to move ...
02/09/1999
5861789Device for magnetizing tool bit
A method and device for magnetizing a tool bit. A housing is adapted for removably fitting around a magnetically attractive tool bit, and a plurality of magnets are disposed in the housing and adapted for making contact with the surface of the bit, to str...
01/19/1999
5848654Laterally articulable blade for a bulldozer device or the like and method for use thereof
A laterally articulable blade for a bulldozing device. A main blade portion and an articulable blade portion extend along the same elongate axis so that the blade portions are co-linear when the blade is in a "straight" configuration. A hinge is pivotally...
12/15/1998
5842586Height adjustable bed and storage unit for small living quarters and method of use thereof
A height adjustable bed and storage unit for small living quarters in which substantially vertical posts are fixedly attached to the floor and ceiling of the living quarters. Each post includes a mating structure for mating to a cross-member at a pluralit...
12/01/1998
5818240Method and system for measuring signal transfer characteristics in the presence of WOW, flutter and intermodulation distortion
A method and apparatus for fast response and distortion measurement of a signal transfer device. A computer processor generates a multitone test signal of predetermined duration and stores it in a memory. The test signal is read out, converted to analog f...
10/06/1998
5780780Weighing vibratory apparatus and method
A weighing vibratory apparatus and method. In one embodiment, an infeed vibratory conveyor element feeds a bulk product to a weighing vibratory conveyor element. In another embodiment, bulk product is fed directly to a weighing vibratory conveyor element ...
07/14/1998
5778953Method and apparatus for carrying and supporting a portable bench top saw
A method and apparatus for carrying and supporting a portable bench top saw wherein the saw has a body housing a saw blade, the body being generally adapted for four-corner screw attachment downwardly into a table, the apparatus comprising a carrying fram...
07/14/1998
5769535Portable lamp having multiple brightness projection
A portable light lamp having multiple brightness providing predominantly directed light projection. The portable light employs a light source and a light source housing, the light source housing having a directed light port disposed to project light from ...
06/23/1998
5759363Carrying device for electroplating and method for improving the delivery of current therein
A carrying device for electroplating and method for improving the delivery of current therein. The carrying device comprises a core of a high conductivity material and a cladding shrunk around and sealing the core, the cladding having a second, moderate c...
06/02/1998
5761033Open computer system with externally interconnected peripheral modules
A computer system with an externally accessible bus system having pairs of card slots and bus receptacles for repeatedly installing and removing modules includes one or more peripheral modules containing peripheral devices and having one or more pairs of ...
06/02/1998
5749047Method and apparatus for recognizing a test signal and determining signal transfer characteristics therefrom
A method and apparatus for fast response and distortion measurement of a signal transfer device. A computer processor generates a multitone test signal of predetermined duration and stores it in a memory. The test signal is read out, converted to analog f...
05/05/1998
5748001Method and apparatus for fast response and distortion measurement
A method and apparatus for fast response and distortion measurement of a signal transfer device. A computer processor generates a multitone test signal of predetermined duration and stores it in a memory. The test signal is read out, converted to analog f...
05/05/1998
5720044Reversible shirt with cutout section for cooling
A shirt or shirt-like garment having a large cutout section in the torso is constructed in the neck and shoulder region so as to be symmetric across a plane passing laterally therethrough, whereby the "fit" of the shirt is the same whether put on "frontwa...
02/24/1998
5716083Joint assembly and backing mechanism therefor
A joint assembly for a pipe and a backing mechanism therefor. The joint assembly provides for sealing a pipe, the pipe having an elongate axis, an inside surface, an outside surface and a flange disposed at one end thereof, the flange having a front surfa...
02/10/1998
5710655Cavity thickness compensated etalon filter
A cavity thickness compensated etalon filter. A tuning medium is placed in a Fabry-Perot etalon cavity. The index of refraction of the tuning medium varies as a function of voltage applied across the medium. The etalon is formed of two generally flat subs...
01/20/1998
5709006Method and apparatus for cleaning with a broom
A method and apparatus for cleaning with a broom. Attachments to a common household broom comprise a clamp having hooks, a broom-shaped inner cover and a rectangular outer cover. The inner cover is adapted to be placed over the broom bristles and fastened...
01/20/1998
5706600Laser sighting device for a weapon
A sighting device for a weapon. The device forms an integral part of the handgun and projects a laser beam onto the impact point of the intended target. The device includes a laser assembly that is preferably disposed adjacent the front of the trigger gua...
01/13/1998
5692240Adjustable shirt collar device
A method and apparatus for adjusting a collar. A flexible fastener is attached to a first side of a neck-band, underneath an under collar and out of sight, and removably attached to a second side of the neck-band, also underneath the under collar and out ...
12/02/1997
5676675Laparo-suture needle and method for use thereof
A laparo-suture needle and method for use thereof. A medical suturing instrument employs an outer, hollow shaft having a laterally-disposed, elongate handle at a proximal end and an elongate, inner shaft disposed within the outer shaft. The inner shaft ha...
10/14/1997
5671543Tape measure marking device and method for use thereof
A tape measure marking device and method for use thereof in which a C-member is removably attached to the tape case across a narrow dimension thereof, by an existing screw in the tape case being inserted through the C-member. The C-member includes an impl...
09/30/1997
5600078Adjustable bridge for a string instrument
A bridge for a string instrument having a body and at least one string. A base is provided for mounting the bridge on the body of the instrument. An intonation adjustment member is slidably mounted on the base for adjusting the horizontal position at whic...
02/04/1997
5511317Automatic sighting device for a projectile launcher
A sighting device for use with a projectile launcher having a sighting element that is adjustable in height and an adjustment mechanism for adjusting the sighting element's height to match substantially the height of a target as apparent at the sighting d...
04/30/1996
5510970Lamp
A lamp employs a halogen light fixture which includes a fitting threadably engaging a conduit entry "L". A standard electrical cord is provided to the entry "L" and connects inside the entry "L" with the pigtail wiring of the light fixture. The entry "L" ...
04/23/1996
5475315Method and apparatus for fast response and distortion measurement
A method and apparatus for fast response and distortion measurement of a signal transfer device. A computer processor generates a multitone test signal of predetermined duration and stores it in a memory. The test signal is read out, converted to analog f...
12/12/1995
5474490Finishing tool
A finishing tool useful in sanding, abrading and like activities. The tool comprises a block having slots of a predetermined size and shape disposed in opposite ends of the block. The slots are adapted to receive matching holding elements so that a predet...
12/12/1995
5441449Integratable grinding wheel dresser
A grinding wheel dresser, integratable with a grinding apparatus and useable to repeatedly dress the face of a grinding wheel to a selected contour in alternation with use of the grinding wheel, the dresser having a dressing mechanism, a dressing control ...
08/15/1995
5437266Coil screw surgical retractor
A surgical retractor and method for use thereof. The retractor is comprised of an elongate shaft having at one end a screw made of coiled, round wire which terminates at a sharp point for attachment to an organ and a connector at the other end of the shaf...
08/01/1995
5435091Handgun sighting device
A handgun sighting device forming an integral part of the handgun and employing a laser device for projecting a laser beam. The laser device is included in a laser assembly disposed adjacent the top portion of the handgun's handgrip rearward of the trigge...
07/25/1995
5420516Method and apparatus for fast response and distortion measurement
A method and apparatus for fast response and distortion measurement of a signal transfer device. A computer processor generates a multitone test signal of predetermined duration and stores it in a memory. The test signal is read out, converted to analog f...
05/30/1995
5411235Fixture for angularly aligning an optical device
A fixture for angularly aligning an optical device. A monolithic structure is provided having a first adjustment member for holding an optical device and tilting the device in one direction, a second adjustment member attached to the first adjustment memb...
05/02/1995
5406709Garden tool
A bladed tool for use as a sod cutter, for breaking up the soil in gardens and as an edger. An elongate handle is attached to a blade having first, second and third edges which generally define a triangle. The handle is attached to the blade immediately a...
04/18/1995
5405160Trailer hitch attachment apparatus
An apparatus and method for attaching a trailer to a vehicle. An apparatus is provided having a winch attached to the trailer for pulling the trailer to the vehicle, a substantially flat strap connected to the winch at one end and having a flat attachment...
04/11/1995
5399367Process for baking tortilla chips
A process and apparatus for cooking tortilla chips. Toast points on a baked tortilla chip are produced by a process whereby tortilla dough pieces cut to the shape of tortilla chips are placed on a stainless steel, open weave conveyor belt which passes thr...
03/21/1995
5387227Method for use of a laparo-suture needle
A laparo-suture needle and method for use thereof. A medical suturing instrument employs an outer, hollow shaft having a laterally-disposed, elongate handle at a proximal end and an elongate, inner shaft disposed within the outer shaft. The inner shaft ha...
02/07/1995
5386084Electronic device enclosure
An electronic device enclosure is provided having a top and a bottom, preferably each made of a polycarbonate plastic material and having respective lower and upper edges which are the same shape, and an elastomeric cover which fits over the top and wraps...
01/31/1995
5362115Multi-ring gasket
A multi-ring gasket and flanged pipe joint assembly. A gasket for sealing the joint between two flanged pipes of polyvinylchloride, chlorinated polyvinylchloride or fiberglass-reinforced plastic pipe is provided. The gasket has an inner ring, an outer rin...
11/08/1994
5360194Support assembly for optical equipment
An assembly having a plurality of elongate feet for supporting optical equipment. The feet are attached to the optical equipment by a fastener. A plurality of alternate carrier holes or an H-shaped aperture are provided in each foot so that, with the fast...
11/01/1994
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