Patents by Inventor Ronald A. Johnson
Ronald A. Johnson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050016901Abstract: A screening assembly 10 includes at least one rail 14 to be secured to a support member of a screening machine to lie parallel to, and intermediate, side members of the screening machine. At least one locating formation 18 stands proud of an operatively upper surface of each rail 14. The assembly includes a plurality of screening modules 12. Each screening module 12 has an end supported on the rail 14 so that a pair of modules 12 lie in end-to-end abutting relationship with the abutting ends, in use, overlying the rail 12 and defining a receiving formation through which the locating formation 18 protrudes to project beyond the receiving formation into a recessed region defined by the abutting ends of the pair of modules 12. A locking member 46 is associated with the receiving formation and is receivable in the recessed region for engaging its associated locating formation to lock the pair of modules with respect to each other and with respect to the rail 14.Type: ApplicationFiled: October 29, 2002Publication date: January 27, 2005Inventors: John Eeles, Ronald Johnson, Peter Martin
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Publication number: 20040261153Abstract: A semirigid swim cap (100) is disclosed, having a unitary construction. The swim cap is generally open at the bottom and includes a forward edge (104), a rearward edge (106), oppositely disposed ear cover portions (108), and a center portion (101). In a preferred embodiment, the swim cap is made from an elastomeric thermoplastic and the center portion is relatively thick, while the peripheral edge portions are relatively thin and therefore less rigid. A pair of sealing ridges (110) extends from an inner surface of the swim cap, near the open bottom.Type: ApplicationFiled: June 29, 2004Publication date: December 30, 2004Applicant: Aero Tech Sports CorporationInventors: Ronald Johnson, David E. Calapp, Matthew A. Rhoades
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Patent number: 6820886Abstract: A front fork yoke for a motorcycle where the yoke includes a parallel pair of posts rigidly maintained laterally spaced apart by a pair of parallel semi-circular arches extending laterally between the posts. The imposts of the upper arch are curved rounded-over shoulders. The front face of the yoke is smoothly rounded-over towards the rear face of the yoke. The arches are upwardly convex and support the motorcycle head tube therebetween. The lower arch is butt-jointed to the fork uprights without the use of collars external to the uprights.Type: GrantFiled: January 31, 2003Date of Patent: November 23, 2004Inventors: Roger David Scott Goldammer, Scott Ronald Johnson
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Patent number: 6646993Abstract: This invention relates to a communication apparatus (203) and method of format adaptation particularly suited for a CDMA cellular communication system. A transmitter (211) transmits a signal to a communication apparatus (203) using a specific transmission format. The transmission includes transmission format information allowing the receiver (217) to adapt to the current transmission format. A hybrid scheme is adopted where transmit format information needed for symbol information is generally transmitted in a transmission block prior to the one where it is applied whereas transmit format information relevant to processing of the demodulated symbols is transmitted in the same transmission block to which it applies. The communication apparatus (203) thus comprise adjustment means (223) operable to adjust a characteristic of the current or future transmission blocks in response to the received transmission format information. The invention is applicable to the UMTS mobile cellular communication system.Type: GrantFiled: November 16, 1999Date of Patent: November 11, 2003Assignee: Motorola, Inc.Inventors: Robert Ivor Davies, Graham Ronald Johnson
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Patent number: 6633151Abstract: An electric drive system is provided to generate varying amounts of output torque supplied to a driven member over a wide range of constant revolutions per minute speeds to reduce power consumption. The electric motor includes a rotor and a stator assembly. The stator assembly is disposed around the rotor and is inductively coupled to the rotor. The stator assembly further includes a plurality of poles, each pole consisting of a plurality of split windings wound so that the magnetic fluxes generated therefrom are added. Power switching circuits are provided for energizing the partition drives of split windings on each of the stator poles. A controller is used to selectively control the frequency, pulse width modulation, and partition configuration to vary the rotational speed and torque generation supplied to the driven member.Type: GrantFiled: March 9, 2001Date of Patent: October 14, 2003Assignee: Eltra Systems, Inc.Inventor: Ronald A. Johnson
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Publication number: 20030111822Abstract: A front fork yoke for a motorcycle where the yoke includes a parallel pair of posts rigidly maintained laterally spaced apart by a pair of parallel semi-circular arches extending laterally between the posts. The imposts of the upper arch are curved rounded-over shoulders. The front face of the yoke is smoothly rounded-over towards the rear face of the yoke. The arches are upwardly convex and support the motorcycle head tube therebetween. The lower arch is butt-jointed to the fork uprights without the use of collars external to the uprights.Type: ApplicationFiled: January 31, 2003Publication date: June 19, 2003Inventors: Roger David Scott Goldammer, Scott Ronald Johnson
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Publication number: 20020153692Abstract: A front fork yoke for a motorcycle where the yoke includes a parallel pair of posts rigidly maintained laterally spaced apart by a pair of parallel semi-circular arches extending laterally between the posts. The imposts of the upper arch are curved rounded-over shoulders. The front face of the yoke is smoothly rounded-over towards the rear face of the yoke. The arches are upwardly convex and support the motorcycle head tube therebetween.Type: ApplicationFiled: March 21, 2002Publication date: October 24, 2002Inventors: Roger David Scott Goldammer, Scott Ronald Johnson
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Publication number: 20020125855Abstract: An electric drive system is provided to generate varying amounts of output torque supplied to a driven member over a wide range of constant revolutions per minute speeds to reduce power consumption. The electric motor includes a rotor and a stator assembly. The stator assembly is disposed around the rotor and is inductively coupled to the rotor. The stator assembly further includes a plurality of poles, each pole consisting of a plurality of split windings wound so that the magnetic fluxes generated therefrom are added. Power switching circuits are provided for energizing the partition drives of split windings on each of the stator poles. A controller is used to selectively control the frequency, pulse width modulation, and partition configuration to vary the rotational speed and torque generation supplied to the driven member.Type: ApplicationFiled: March 9, 2001Publication date: September 12, 2002Inventor: Ronald A. Johnson
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Patent number: 5917669Abstract: Inserting operational data onto a magnetic disk allows information to be transferred from a servowriter station to a verifier station. This operational data allows disk specific operational data to follow the disk without separate means for attaching data to each disk. The servowriters, which cannot write information to disks at the data sector frequency, inserts the operational data into selected greycodes in the servo sectors. When the disks are verified, the operational data may be moved from the servo sectors to the data sector in the Z-tracks for more permanent storage.Type: GrantFiled: August 15, 1996Date of Patent: June 29, 1999Assignee: Iomega CorporationInventors: Paul Ronald Johnson, Weimin Pan, Robert L. Short, Mark Dale Thornley, Don Wilford Wallentine
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Patent number: 5786673Abstract: A fractional-power electric motor is provided to generate varying amounts of output torque supplied to a driven member over a wide range of RPM speeds so as to reduce power consumption on a battery-powered source. The electric motor includes a rotor and a stator assembly. The stator assembly is disposed around the rotor and is inductively coupled to the rotor. The stator assembly further includes a plurality of poles, each having a main winding and at least one fractional-power winding. The main winding and associated at least one fractional-power winding on each of the stator poles are wound so that the magnetic fluxes generated therefrom are added. Power switching circuits are provided for independently energizing the main and fractional-power windings on each of the stator poles. A controller is used to control selectively the frequency and duty cycle energization of the power switching circuits to vary the rotational speed of the rotor and the amounts of torque supplied to the driven member.Type: GrantFiled: July 7, 1997Date of Patent: July 28, 1998Assignee: Johnson Consulting, Inc.Inventor: Ronald A. Johnson
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Patent number: 5727670Abstract: A servicing arrangement is provided for a conveyor belt cleaner. The servicing arrangement includes an elongate mandrel member having a first end and second end. The second end of the mandrel member is adapted to be attached to a support such that the mandrel member is retained by the support in a cantilevered manner. A support member is adapted to be positioned over the mandrel member by sliding the support member over the first end of the mandrel member. The support member is selectively slidable along the mandrel member to selectively remove or selectively mount the support member on the mandrel member. The support member is adapted to receive and support a conveyor belt cleaner. An operator can easily remove the conveyor belt cleaner from the mandrel member for service or replacement of the conveyor belt cleaner from the outside of a conveyor housing during conveyor operation when a suitably designed tensioner with a release mechanism is used to protect the operator from cleaner blade pull through.Type: GrantFiled: October 23, 1995Date of Patent: March 17, 1998Assignee: Martin Engineering CompanyInventor: Ronald Johnson
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Patent number: 5661379Abstract: A fractional-power electric motor is provided to generate varying amounts of output torque supplied to a driven member over a wide range of RPM speeds so as to reduce power consumption on a battery-powered source. The electric motor includes a rotor and a stator assembly. The stator assembly is disposed around the rotor and is inductively coupled to the rotor. The stator assembly further includes a plurality of poles, each having a main winding and at least one fractional-power winding. The main winding and associated at least one fractional-power winding on each of the stator poles are wound so that the magnetic fluxes generated therefrom are added. Power switching circuits are provided for independently energizing the main and fractional-power windings on each of the stator poles. A controller is used to control selectively the frequency and duty cycle energization of the power switching circuits to vary the rotational speed of the rotor and the amounts of torque supplied to the driven member.Type: GrantFiled: September 6, 1995Date of Patent: August 26, 1997Assignee: Johnson Consulting, Inc.Inventor: Ronald A. Johnson
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Patent number: 5251445Abstract: An airless hand held hydraulic pump unaffected by gravity continuously maintains pressure on the fluid in a dynamic reservoir chamber to enable pumping into a dynamic pressure chamber for actuating a forcing rod irrespective of the orientation of the pump. A release valve permits fluid return from the pressure chamber into the reservoir chamber. The pump can be fitted with a tool such as a door forcer.Type: GrantFiled: October 3, 1991Date of Patent: October 12, 1993Assignee: Hydra-Ram Inc.Inventors: Robert E. Farell, Ronald Johnson
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Patent number: 5085231Abstract: A head-mounted, hat-like device includes components for guiding a stream of air flowing in a direction frontwardly of the face of the user and filter components for filtering the stream of air. The air flow guiding components include a fan fixedly mounted to a housing, a directional member mounted to the visor portion of the housing for directing air frontwardly of the person's face and a conduit for interconnecting the directional component and the fan device. The fan device draws ambient air including smoke and other by-products of burning tobacco through the directional component and along the conduit to be discharged by the fan device through a conventional tobacco by-product filter component, thereby cleansing the stream of air before it is released to the air space above the person.Type: GrantFiled: May 8, 1990Date of Patent: February 4, 1992Inventor: Ronald A. Johnson
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Patent number: 4146022Abstract: An orthopedic implant for use in the internal fixation of a bone fracture by wiring, a method of fracture fixation by wiring which avoids bone resorption, and means for embedding the implant in the cortex of a bone adjacent the fracture site. The implant comprises a cylindrical body portion, a plurality of pointed pins at one end of the body portion, a circular bore through the body portion through which a wire may be passed, and at least one groove on the surface of the body portion in which a wire may be accommodated.Type: GrantFiled: November 16, 1977Date of Patent: March 27, 1979Assignee: Ronald A. JohnsonInventors: Ronald A. Johnson, Horst R. Hickmann
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Patent number: 4035712Abstract: A constant frequency a.c. generating system includes an alternator driven at a variable speed. A rectifier provides a d.c. supply for a rotary inverter. To maintain the voltage and frequency of the inverter output constant, the frequency is monitored and used to control the alternator field current and the voltage is monitored and used to control the inverter field current in a regulator circuit.Type: GrantFiled: March 5, 1976Date of Patent: July 12, 1977Assignee: Lucas Industries LimitedInventors: Christopher John Yarrow, Ronald Johnson, James Patrick Doyle
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Patent number: 4024455Abstract: A rotary inverter for converting d.c. to a.c. includes a rotary field winding and a stationary armature including two windings. One winding is supplied with d.c. switched in synchronism with the rotation of the field winding. The other winding is electrically isolated from the first mentioned winding but is magnetically coupled thereto and provides the a.c. output. The two windings occupy the same slots in the armature.Type: GrantFiled: March 4, 1976Date of Patent: May 17, 1977Assignee: Lucas Industries LimitedInventors: Christopher John Yarrow, Ronald Johnson
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Patent number: 4015689Abstract: An elevator safety construction in which detent means is provided to block any elevator from falling more than one floor in free fall from such accidents as breakage of the supporting lift cables of the elevator in its shaft. Each floor of the building has its own safety blocking brace normally extending into the path of the descending elevator to block its path therepast. Timing mechanism times the speed of the elevator car and as long as it is lower than the predetermined car descent speed, each of the successive blocking braces is withdrawn, allowing the car to descend successively past each brace. If, however, the descent speed of the car is excessive, then lower braces are not withdrawn and the car cannot move past them, thus blocking crashes and injuries or fatalities to occupants.Type: GrantFiled: March 13, 1975Date of Patent: April 5, 1977Assignee: Lawrence Peska Associates, Inc.Inventor: Ronald Johnson
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Patent number: 3983843Abstract: An apparatus for treating aquarium water to thereby reduce the amount of water contaminants and microorganisms harmful to the aquarium fauna. A unitary water treatment device is situated in a generally concealed location along the top of the aquarium frame and is constructed to provide an interchangeable filter and adjacent heating and sterilizing components.Type: GrantFiled: January 13, 1975Date of Patent: October 5, 1976Inventor: B. Ronald Johnson