Patents by Inventor Harold R. Johnson, III

Harold R. Johnson, III 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).

  • Patent number: 6093230
    Abstract: A filter assembly is disclosed which has a first filter element held by or bonded to a spacer and a second filter element positioned adjacent the spacer on a side of the spacer opposite the first filter.
    Type: Grant
    Filed: October 12, 1998
    Date of Patent: July 25, 2000
    Assignee: Allegiance Corporation
    Inventors: Harold R. Johnson, III, Robert A. Horick, Jr.
  • Patent number: 4890504
    Abstract: A new design for helical gearsets is disclosed in which the new gearsets meet all applicable ratings and standards of the American Gear Manufacturers Association (AGMA), and yet allows very substantial cost savings over prior similar gearsets having an equivalent AGMA rating. The gearsets of the instant invention generally are substantially thinner, and have fewer, but larger, gear teeth than the prior gearsets they replace. A helical gearset of the present invention includes a pinion and a gear, with the pinion and the gear each having a plurality of teeth. Each of these teeth has a helix angle ranging between about 18 degrees and 33 degrees. The pinion and the gear each have a face width and a whole depth, with the pinion having 13 or fewer teeth, and with the pinion and the gear having a face width-to-whole depth ratio of about 4.5 or less. The axial overlap of the gearset ranges between 1.001 and about 1.2.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: January 2, 1990
    Assignee: Emerson Electric Co.
    Inventors: Erwin R. Carrigan, Harold R. Johnson, III, Allyn E. Phillips
  • Patent number: 4884916
    Abstract: A structural mounting assembly for mounting a power transmission member, such as the disk portion of a gear, to a shaft wherein the disk portion has an open-ended quill extending therethrough sized to snugly receive a bushing that has one end adapted to snugly receive the extremity of the shaft and the other end arranged to be connected to an adapter mountable at the other open end of the quill.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: December 5, 1989
    Assignee: Emerson Electric Co.
    Inventor: Harold R. Johnson, III
  • Patent number: 4794811
    Abstract: A new design for helical gearsets is disclosed in which the new gearsets meet all applicable ratings and standards of the American Gear Manufacturers Association (AGMA), and yet allows very substantial cost savings over prior similar gearsets having an equivalent AGMA rating. The gearsets of the instant invention generally are substantially thinner, and have fewer, but larger, gear teeth than the prior gearsets they replace. A helical gearset of the present invention includes a pinion and a gear, with the pinion and the gear having a plurality of teeth. Each of these teeth has a helix angle ranging between about 18 degrees and 33 degrees. The pinion and the gear each have a face width and a whole depth, with the pinion having 13 or fewer teeth, and with the pinion and the gear having a face width-to-whole depth ratio of about 4.5 or less. The axial overlap of the gearset ranges between 1.001 and about 1.2.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: January 3, 1989
    Assignee: Emerson Electric Co.
    Inventors: Erwin R. Carrigan, Harold R. Johnson, III, Allyn E. Phillips
  • Patent number: 4697675
    Abstract: A backstop for a reducer having a casing comprises a one-way cylindrical clutch having a plurality of circularly arranged locking elements therein engaged by the periphery a reducer input shaft passing axially therethrough. To achieve a precise concentricity of the reducer shaft and the circularly arranged locking elements so that each element is stressed, the clutch is loosely housed in and loosely keyed to a clutch casing which is in turn firmly attached to a portion of the reducer casing and the one-way clutch and circularly arranged locking elements are then bushing aligned concentric with the reducer input shaft extending axially therethrough.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: October 6, 1987
    Assignee: Emerson Electric Co.
    Inventors: Harold R. Johnson, III, Allyn E. Phillips, Erwin R. Carrigan, Richard A. Virgo, James E. Mickelson