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Attorney: Calfee Halter & Griswold


Number of patents: 138
Last date: May 20, 2008

1        
NumberTitleIssue Date
7374002Wheelchair suspension
The present invention provides a suspension for a conveyance that is capable of traversing obstacles and rough terrain. The suspension includes a frame, a pivot arm, a front caster, a drive assembly and a rear caster. The pivot arm substantially remains in a first p...
05/20/2008
7354118Control valve system
A pneumatic brake system that includes at least one pneumatic latching valve; a single device, such as a solenoid, for providing momentary pilot signals to pneumatic latching valve; a source of pressurized supply air in communication with the pneumatic latching valv...
04/08/2008
7267413Control valve
A configurable control valve for use with air brake systems is provided. This control valve includes: a first or top body portion, a second or bottom body portion, and a connector for attaching the first body portion to the second body portion. The first body portio...
09/11/2007
7261070Linear fluid engine
A linear fluid engine includes a power transfer cylinder that is driven by combustion of fuel in a combustion cylinder to pressurize a power transferring fluid. Some of the power transferring fluid is used to power a subsequent compression stroke in the combustion c...
08/28/2007
7219755Obstacle traversing wheelchair
The present invention provides a curb-climbing wheelchair having pivotal arm assemblies. The pivotal arm assemblies include at least one front caster and have the ability to rotate or pivot. The pivot arms rotate or pivot in response to moments generated by accelera...
05/22/2007
7207199Dead locking deadbolt
A deadbolt mechanism including a lock out mechanism that functions to disable the operation of the deadbolt from at least one side of the deadbolt mechanism. The deadbolt mechanism includes a deadbolt, key cylinder, housing, turn knob and a shaft that connects the k...
04/24/2007
7191042System and method for steering a multi-wheel drive vehicle
A system and method of controlling a multi-wheel drive vehicle is provided. The invention is preferably applicable to the steering of such a vehicle and determines the individual velocities for each wheel drive. In this regard, the invention includes two general ste...
03/13/2007
6908047Oscillating shower sprayer
An improved shower sprayer is provided which includes an oscillating head to provide improved water coverage for a shower user. The valve may include a base, at least one oscillating sprayer head supported by the base and a turbine system driven by a current of wate...
06/21/2005
6040676Passive electronic damping for step motor
Passive electronic damping apparatus for a step motor of the type having a number of phase windings, comprising: a respective transconductance amplifier coupled to each phase winding for producing a phase drive current in the winding in response to a posi...
03/21/2000
5938525Air diffuser, and mold and method for its production
An air diffuser for under floor air and electrical distribution systems, which can be rapidly converted to a cable grommet assembly, is provided with a diffuser grille having generally helical slots that produce a swirling air flow pattern with low impuls...
08/17/1999
5802544Addressing multiple removable memory modules by remapping slot addresses
The present invention provides a computer system supporting multiple, removable ROM-based applications without requiring the ROM-applications to be inserted into a particular slot. The computer system accepts one or more cartridges into any combination of...
09/01/1998
5720471Low profile composite material bedding foundation system and methods of manufacture
A low profile composite material bedding foundation system and methods of manufacture and assembly uses spring modules made of molded composite materials and supported by inner frame members. The low-profile of the spring modules, and the composite materi...
02/24/1998
5689715Low power ring detect for computer system wake-up
A computer system having a CPU, a power management processor, a modem, and a power supply in circuit communication. The power management processor controls the regulation of power to the CPU by the power supply. Responsive to a ring signal having a freque...
11/18/1997
5656444Monoclonal antibody to oncofetal protein for treating and detecting cancer
The present invention provides a low cost, less toxic, anti-cancer immunotherapy which enhances the host's immune system ability to destroy or contain cancers, and also provides a diagnostic test for cancer. Specifically, the present invention provides mo...
08/12/1997
5650009Adustable rotary coater device for applying hot melt material to a moving web
A rotary coater device (12) is provided, comprising front and rear frame plates (30) having mounted therebetween: a die bracket assembly (100), a screen assembly (200), a heater hood assembly (300), and an impression roll assembly (400). The die bracket a...
07/22/1997
5650300Method of producing monoclonal antibodies to oncofetal protein
The present invention provides a low cost, less toxic, anti-cancer immunotherapy which enhances the host's immune system ability to destroy or contain cancers, and also provides a diagnostic test for cancer. Specifically, the present invention provides mo...
07/22/1997
5647656Illuminated fluid level indicator
Lighting assemblies are provided for visual indicators which indicate the level of fluid in a container. One such assembly comprises a backlighting assembly for a visual fluid level indicator having front and rear transparent viewing windows for viewing t...
07/15/1997
5634240Roller components for atachment to an article of luggage
Removably attachable roller components provide an article of luggage or other objects with a rolling capability. The roller components are economical to manufacture, easy to attach to an article of luggage, and strong enough to resist detachment under hig...
06/03/1997
5636372Network timing analysis method which eliminates timing variations between signals traversing a common circuit path
A method of analyzing timing differences between arrival times of distinct signals propagating through a circuit comprising: (i) identifying a first beginning point for a first data path over which data arrival times are propagated to a data endpoint; (ii...
06/03/1997
5632375Combined functional toy and cassette holder
A combined amusement and audio cassette holding device and method for presenting multi-media information to children includes a functional toy having a cassette receiving cavity which receives and frictionally engages and retains one or more cassettes or ...
05/27/1997
5628396Foldable combined receptacle and advertisement display
A combined waste receptacle and advertising display is formed in a pyramidal shape from a single piece of folded material which to provide an enclosed waste receiving cavity and a three display surfaces. Openings in the pyramid walls provide access to a s...
05/13/1997
5628080Curve formed protective and decorative bedding foundation corner guard
A protective and decorative mattress foundation curved corner guard is mold formed in a curved configuration with a wall portion of the guard having a radius of curvature approximately equal to a radius of curvature of rounded corners of a mattress founda...
05/13/1997
5628889High power capacity magnetron cathode
A high power capacity magnetron cathode has coolant fluid control surfaces attached to a supporting structure of a magnet array housed by a magnet array housing. The coolant fluid control surfaces provide radial and axial pumping and circulatory action of...
05/13/1997
5626673Static agitator for adjustable slot coater die in a rotary coater
An adjustable slot coater die (500) for use in a rotary coater device is provided, comprising a die manifold (502) into which hot melt material may be introduced and having a plurality of distribution channels; and an adapter (506) reversibly attachable t...
05/06/1997
5626243Gravity fed merchandising system
A product merchandising system is provided which is particularly useful for supporting and displaying baseball and/or softball gloves and mitts. The merchandising system includes an upright store fixture and at least one hanger arm coupled with the uprigh...
05/06/1997
5623864Single chamber brewing device
A single chamber brewing device for brewing beverage has a single brewing chamber for receiving water and a brewing material such as tea, a thermally controlled heating element, and a thermally controlled valve for releasing brewed beverage from the brewi...
04/29/1997
5622315Adjustable slot goating die
A slot coating die (10) is provided, comprising an upper die half (12) and a lower die half (14) attached together with a shim (16) disposed therebetween, each die half extending along an axis (18) and having a front and a back. The front of the upper die...
04/22/1997
5622295Holster for handguns or the like
A holster for a handgun comprising a holster body for receiving the handgun, the holster body being mounted on a belt receiving member; the holster body having an open top for receiving the handgun, and an open bottom to allow a barrel of the handgun to p...
04/22/1997
5622384Foldable die cut cards
A foldable card and method of making has multiple panels connected by fold lines which are placed laterally inward from free peripheral edges of end panels such that the card can be die cut in a folded configuration around an entire periphery of the card ...
04/22/1997
5619904Automatic tea brewing device and tea pot receptacle
A device for automatically brewing and holding tea has a water reservoir and a combined water reservoir inlet and heated water distributor attached to and extending from the water reservoir, a hinge mounted steeping chamber positionable over a base for ho...
04/15/1997
5621032Fluxed composites
A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liqu...
04/15/1997
5611616Electrical controls enclosure
An improved electrical controls enclosure is provided having a modular assembly which is generally tubular in shape, having a generally uniform cross-sectional area throughout its longitudinal axis. The modular assembly comprises (i) a base mounting flang...
03/18/1997
5608897Programmable linear feedback shift register timeout mechanism
A timeout mechanism for a computer system is provided, comprising a clocked linear feedback shift register and a programmable comparing mechanism. The linear feedback shift register comprises a series of latches serially connected to each other, and is re...
03/04/1997
5606133Gyratory compactor with mold specimen extruder
A gyratory compacting and mold extruding apparatus for compacting a specimen of material within a mold as the mold is gyrated includes a frame for supporting a mold, a mold gyrating carriage, a compaction ram and ram driving assembly, and a mold specimen ...
02/25/1997
5604021Multi-layer support pad having regions of differing firmness
A laminated support pad includes layers of material having different density in which voids are formed to extend through at least partial cross-sections of at least two adjacent layers to form regions of the pad having different support characteristics de...
02/18/1997
5599953C-glycoside analogues of N-(4-hydroxyphenyl)retinamide-O-glucuronide
The present invention provides breast cancer chemopreventive arylamide analogues of retinoic acid, more particularly C-glycoside analogues of N-(4-hydroxyphenyl)retinamide-O-glucuronide and N-glycoside analogue of retinoyl ଲ-glucuronide that resist ...
02/04/1997
5584932Electrical control circuit for controlling the speed and position of a rotary screen coater with respect to the line speed and position of a moving web
A hot melt material coating system (10) is provided, comprising (i) a rotary coater (12) driven by a motor (604); (ii) a rotary coater position, speed and direction indicator (610) operatively connected to the rotary coater and providing a signal represen...
12/17/1996
5581714Bus-to-bus read prefetch logic for improving information transfers in a multi-bus information handling system (bus-to-bus bridge for a multiple bus information handling system that optimizes data transfers between a system bus and a peripheral bus)
A method and system for improving bus-to-bus data transfers in a multi-bus computer system is provided. The system includes a system bus having a slave device attached thereto, a peripheral bus having a master device attached thereto, and a host bridge co...
12/03/1996
5581204Pulse width measurement circuit
A pulse width measurement circuit is provided, comprising (i) a comparator circuit for receiving a pulse, the time duration of which is to be measured, and for activating a pulse present signal in response to the received pulse; (ii) a counter for countin...
12/03/1996
5574177Arylamide analogues of N-(4-hydroxyphenyl) retinamide-o-glucuronide
The present invention provides breast cancer chemopreventive arylamide analogues of retinoic acid, more particularly C-glycoside analogues of N-(4-hydroxyphenyl)retinamide-O-glucuronide that resist both ଲ-glucuronidase mediated enzymatic hydrolysis ...
11/12/1996
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