Patents by Inventor Charles A. Thomas

Charles A. Thomas 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: 8614156
    Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven or knitted fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of aramid, PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 24, 2013
    Assignee: PBI Performance Products, Inc.
    Inventors: Diane B. Hess, Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
  • Patent number: 8393096
    Abstract: A snowplow and mounting assembly having a mounting frame for use with a motorized wheelchair wherein the mounting frame has one side with a V-shape or other shape snowplow facing away from the wheelchair and has another side that faces the wheelchair and is adapted to cooperate with the wheelchair in use to plow snow. A particular snowplow and mounting assembly has a mounting frame for pressed engagement with the tip wheels of a wheelchair; a snowplow blade disposed on one side of the frame; first and second push wheel brackets disposed on the other side of the frame for contacting the first and second tip wheels of the motorized wheelchair; and at least one handle disposed on the frame adapted to be operated by user of the wheelchair.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 12, 2013
    Inventor: Charles A. Thomas
  • Publication number: 20120034835
    Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven or knitted fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of aramid, PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.
    Type: Application
    Filed: October 18, 2011
    Publication date: February 9, 2012
    Inventors: Diane B. Hess, Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
  • Patent number: 8071492
    Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven or knitted fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of aramid, PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: December 6, 2011
    Assignee: PBI Performance Products, Inc.
    Inventors: Diane B. Hess, Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
  • Publication number: 20110099857
    Abstract: A snowplow and mounting assembly having a mounting frame for use with a motorized wheelchair wherein the mounting frame has one side with a V-shape or other shape snowplow facing away from the wheelchair and has another side that faces the wheelchair and is adapted to cooperate with the wheelchair in use to plow snow. A particular snowplow and mounting assembly has a mounting frame for pressed engagement with the tip wheels of a wheelchair; a snowplow blade disposed on one side of the frame; first and second push wheel brackets disposed on the other side of the frame for contacting the first and second tip wheels of the motorized wheelchair; and at least one handle disposed on the frame adapted to be operated by user of the wheelchair.
    Type: Application
    Filed: October 14, 2010
    Publication date: May 5, 2011
    Inventor: Charles A. Thomas
  • Publication number: 20090255150
    Abstract: A snowplow and mounting assembly having a mounting frame for use with a wheelchair wherein the mounting frame has one side with a V-shape or other shape snowplow facing away from the wheelchair and has another side that faces the wheelchair and is adapted to cooperate with the wheelchair in use to plow snow. A particular snowplow and mounting assembly has a mounting frame for releasable connection to a wheelchair; a snowplow blade disposed on one side of the frame; first and second pivotal linkages disposed on the other side of the frame for releasably engaging first and second wheels of a wheelchair; and at least one handle disposed on the frame adapted to be operated by user of the wheelchair. Snowplow and mounting assembly can easily be connected and disconnected by the wheelchair user.
    Type: Application
    Filed: February 27, 2009
    Publication date: October 15, 2009
    Inventor: Charles A. Thomas
  • Publication number: 20040235383
    Abstract: The present invention is a yarn or fabric useful in protective garments. The yarn or fabric is made of flame resistant fibers and microdenier flame resistant fibers. The flame resistant fibers are selected from the group consisting of inherently flame resistant fibers, treated fibers, and combinations thereof. The microdenier flame resistant fibers are selected from the group consisting of microdenier inherently flame resistant fibers, microdenier treated fibers, and combinations thereof. The weight ratio of said flame resistant fibers to said microdenier flame resistant fibers is in the range of 4-9:2-6.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 25, 2004
    Applicant: Celanese Advanced Materials, Inc.
    Inventors: Clifton A. Perry, Charles A. Thomas, Diane B. Hess
  • Publication number: 20030203690
    Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven or knitted fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of aramid, PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.
    Type: Application
    Filed: January 21, 2003
    Publication date: October 30, 2003
    Applicant: Celanese Advanced Materials, Inc.
    Inventors: Diane B. Hess, Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
  • Patent number: 6624096
    Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: September 23, 2003
    Assignee: CNA Holdings, Inc.
    Inventors: Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
  • Publication number: 20030040240
    Abstract: The present invention is directed to a textile fabric. This fabric is particularly well suited for use as the outer shell fabric of a firefighter's garment. The fabric is a woven fabric of spun yarns and multi-filament yarns. The spun yarn includes a first staple being a polymer selected from the group consisting of PBI or PBO or melamine formaldehyde, and a second staple being an aramid polymer. The multi-filament yarn includes an aramid filament.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 27, 2003
    Inventors: Charles A. Thomas, Clifton A. Perry, Richard O. Tucker
  • Patent number: 5213529
    Abstract: An improved oar horn assembly includes a socket constructed to be fixed to the side of a boat for rotatably mounting an oar horn. The oar horn includes a ring having a substantially ovular through-hole for receiving the oar. The ovular through-hole is constructed so that it contacts the oar at two points on substantially opposite sides of the oar to thereby support the oar within the oar horn. Since the oar is supported by contact on two opposite sides thereof, ratcheting is reduced. Further, due to the oval nature of the new oar horn design, an increased angle of attach to water may be obtained.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: May 25, 1993
    Assignee: Thomas Machine and Foundry, Inc.
    Inventor: Charles A. Thomas
  • Patent number: 5006460
    Abstract: A method of measuring chain breakage in the DNA of a eucaryotic cell is disclosed. This method includes (a) contacting the cell with a stripping solution that lyses and solubilizes the cell without denaturing its DNA, thereby forming a nucleoid having a halo, (b) measuring the width of the halo, and (c) determining the number of chain breaks from the measured width. The halo includes at least one loop of undenatured DNA, and has a width related to the number of DNA chain breaks in the loop. The cell to be examined may be adhered to a support prior to its contact with the stripping solution. The number of DNA chain breaks can be determined by compairing the measured width of the nucleoid halo with a reference value.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: April 9, 1991
    Assignee: Pantox Corporation
    Inventors: Charles A. Thomas, Jr., Eric A. Thomas
  • Patent number: 4928411
    Abstract: A tray assembly is provided which allows an information-carrying substrate to be seen through a cover portion thereof. The assembly includes a transparent cover mounted to an opaque base. The substrate is inserted between the cover and base which are then secured to each other. Openings are provided within the base to allow the cover to be detached therefrom. The cover and base include corresponding peripheral channel and ridge portions, respectively, which facilitate the mounting of the cover to the base. The ridge portions of the base also center the substrate. Projections extending from the longitudinal edges of the cover extend through corresponding slots in the base to provide locking engagement of the two members.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: May 29, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Sara L. Danis, Charles L. Skaggs, Charles A. Thomas
  • Patent number: 4796972
    Abstract: A rotary electrical contact assembly is mounted on the axle of a bicycle wheel. The rotary electrical contact assembly provides power from a conventional bicycle generator to light bulbs within reflectors mounted on the spokes of the bicycle wheel. A slidable switch on the rotary electrical contact assembly is connected to a shift cable for remote actuation by a bicycle rider. The switch is utilized to select between a constant illumination of the reflectors and an alternative flashing mode of operation.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: January 10, 1989
    Inventors: Charles A. Thomas, William N. Bland, Jr.
  • Patent number: 4315111
    Abstract: A battery powered hearing aid has a remote, momentary shut off switch comprised of two leaf plates mounted in a spaced apart relationship, with each leaf plate having an electrical contact extending inwardly and aligned so that pressure against either leaf plate separates the contacts to open an electrical circuit. When the switch is opened, power from the battery is disconnected from the hearing aid, rendering it non-operational while the leaf plates are under pressure. The remote momentary shut off switch is particularly adapted for mounting in the shoulder area of a hunting vest or the like to permit improved hearing while stalking a quarry without amplifying the firing noise from a shotgun or rifle.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: February 9, 1982
    Inventor: Charles A. Thomas
  • Patent number: D317671
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: June 18, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Charles L. Skaggs, Charles A. Thomas, Sara L. Danis