Patents by Inventor Ronald Johnson

Ronald 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).

  • Publication number: 20050016901
    Abstract: 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: Application
    Filed: October 29, 2002
    Publication date: January 27, 2005
    Inventors: John Eeles, Ronald Johnson, Peter Martin
  • Publication number: 20040261153
    Abstract: 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: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Applicant: Aero Tech Sports Corporation
    Inventors: Ronald Johnson, David E. Calapp, Matthew A. Rhoades
  • Patent number: 6820886
    Abstract: 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: Grant
    Filed: January 31, 2003
    Date of Patent: November 23, 2004
    Inventors: Roger David Scott Goldammer, Scott Ronald Johnson
  • Patent number: 6646993
    Abstract: 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: Grant
    Filed: November 16, 1999
    Date of Patent: November 11, 2003
    Assignee: Motorola, Inc.
    Inventors: Robert Ivor Davies, Graham Ronald Johnson
  • Patent number: 6633151
    Abstract: 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: Grant
    Filed: March 9, 2001
    Date of Patent: October 14, 2003
    Assignee: Eltra Systems, Inc.
    Inventor: Ronald A. Johnson
  • Publication number: 20030111822
    Abstract: 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: Application
    Filed: January 31, 2003
    Publication date: June 19, 2003
    Inventors: Roger David Scott Goldammer, Scott Ronald Johnson
  • Publication number: 20020153692
    Abstract: 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: Application
    Filed: March 21, 2002
    Publication date: October 24, 2002
    Inventors: Roger David Scott Goldammer, Scott Ronald Johnson
  • Publication number: 20020125855
    Abstract: 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: Application
    Filed: March 9, 2001
    Publication date: September 12, 2002
    Inventor: Ronald A. Johnson
  • Patent number: 5917669
    Abstract: 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: Grant
    Filed: August 15, 1996
    Date of Patent: June 29, 1999
    Assignee: Iomega Corporation
    Inventors: Paul Ronald Johnson, Weimin Pan, Robert L. Short, Mark Dale Thornley, Don Wilford Wallentine
  • Patent number: 5786673
    Abstract: 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: Grant
    Filed: July 7, 1997
    Date of Patent: July 28, 1998
    Assignee: Johnson Consulting, Inc.
    Inventor: Ronald A. Johnson
  • Patent number: 5727670
    Abstract: 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: Grant
    Filed: October 23, 1995
    Date of Patent: March 17, 1998
    Assignee: Martin Engineering Company
    Inventor: Ronald Johnson
  • Patent number: 5661379
    Abstract: 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: Grant
    Filed: September 6, 1995
    Date of Patent: August 26, 1997
    Assignee: Johnson Consulting, Inc.
    Inventor: Ronald A. Johnson
  • Patent number: 5251445
    Abstract: 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: Grant
    Filed: October 3, 1991
    Date of Patent: October 12, 1993
    Assignee: Hydra-Ram Inc.
    Inventors: Robert E. Farell, Ronald Johnson
  • Patent number: 5085231
    Abstract: 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: Grant
    Filed: May 8, 1990
    Date of Patent: February 4, 1992
    Inventor: Ronald A. Johnson
  • Patent number: 4146022
    Abstract: 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: Grant
    Filed: November 16, 1977
    Date of Patent: March 27, 1979
    Assignee: Ronald A. Johnson
    Inventors: Ronald A. Johnson, Horst R. Hickmann
  • Patent number: 4035712
    Abstract: 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: Grant
    Filed: March 5, 1976
    Date of Patent: July 12, 1977
    Assignee: Lucas Industries Limited
    Inventors: Christopher John Yarrow, Ronald Johnson, James Patrick Doyle
  • Patent number: 4024455
    Abstract: 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: Grant
    Filed: March 4, 1976
    Date of Patent: May 17, 1977
    Assignee: Lucas Industries Limited
    Inventors: Christopher John Yarrow, Ronald Johnson
  • Patent number: 4015689
    Abstract: 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: Grant
    Filed: March 13, 1975
    Date of Patent: April 5, 1977
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: Ronald Johnson
  • Patent number: 3983843
    Abstract: 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: Grant
    Filed: January 13, 1975
    Date of Patent: October 5, 1976
    Inventor: B. Ronald Johnson