Patents by Inventor David Oman Blair

David Oman Blair 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: 10337646
    Abstract: Adjustable apparatuses for improved lockout-tag out safety. The apparatus includes anchor, drive and securing portions that allow the apparatus to sit within a valve casing and block access to a valve. The anchor portion is selectively expandable via the drive portion to grip opposing walls of the casing, thereby holding the lockout apparatus in place. The securing portion provides selective access, such as through a lockable latch, to the drive member. When the securing portion is in a closed state, the drive member is inaccessible and the anchor portion cannot be adjusted. Anchor portions can include scissor jacks or other types of pneumatic or hydraulic devices. The shape and size of the securing portion, such as a six-inch diameter disk or plate, can further allow the lockout apparatus to rest on a top portion of the casing when the anchor portion is in a contracted state.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 2, 2019
    Inventor: David Oman Blair
  • Publication number: 20170363226
    Abstract: Adjustable apparatuses for improved lockout-tag out safety. The apparatus includes anchor, drive and securing portions that allow the apparatus to sit within a valve casing and block access to a valve. The anchor portion is selectively expandable via the drive portion to grip opposing walls of the casing, thereby holding the lockout apparatus in place. The securing portion provides selective access, such as through a lockable latch, to the drive member. When the securing portion is in a closed state, the drive member is inaccessible and the anchor portion cannot be adjusted. Anchor portions can include scissor jacks or other types of pneumatic or hydraulic devices. The shape and size of the securing portion, such as a six-inch diameter disk or plate, can further allow the lockout apparatus to rest on a top portion of the casing when the anchor portion is in a contracted state.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 21, 2017
    Inventor: David Oman Blair
  • Patent number: 9675055
    Abstract: Tackle or artificial fly devices for improved fishing experience. The tackle device includes head and tail portions formed of a single, continuous material and allows one to tie flies thereon without fixing a certain hook type and/or size directly to the device. A lumen extends the device length and enables the tackle device to slide freely along a fishing line and more easily release from junction tubing and/or a fishing hook when a fish strikes. The tackle device can consist of a plastic, polycarbonate or other rigid polymer formed via injection molding. Device head portions can include cylindrical, dome as well as segmented shapes; various sizes; and one or more bills, cavities and/or carve-outs to create desired motion of the device while fishing. Incorporating draft into the tail portion further facilitates separation from junction tubing when hooking a fish, thereby prolonging the useful life of the tackle device.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 13, 2017
    Inventor: David Oman Blair
  • Publication number: 20150216154
    Abstract: Tackle or artificial fly devices for improved fishing experience. The tackle device includes head and tail portions formed of a single, continuous material and allows one to tie flies thereon without fixing a certain hook type and/or size directly to the device. A lumen extends the device length and enables the tackle device to slide freely along a fishing line and more easily release from junction tubing and/or a fishing hook when a fish strikes. The tackle device can consist of a plastic, polycarbonate or other rigid polymer formed via injection molding. Device head portions can include cylindrical, dome as well as segmented shapes; various sizes; and one or more bills, cavities and/or carve-outs to create desired motion of the device while fishing. Incorporating draft into the tail portion further facilitates separation from junction tubing when hooking a fish, thereby prolonging the useful life of the tackle device.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 6, 2015
    Inventor: David Oman Blair