Patents by Inventor David M. Duncan

David M. Duncan 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: 10638816
    Abstract: A shoulder strap device and method provides a movable and/or swiveling attachment arrangement which spreads the load to the wearer's specific shape. Embodiments of the device include a set of strap ring components, each strap ring component having a substantially linearly extending base portion and a substantially curvilinearly extending retention portion, first and second connector items or straps secured to respective subsets of the strap ring components, and a body garment secured to the strap ring components.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: May 5, 2020
    Assignee: Velocity Systems LLC
    Inventors: David B. Strum, David M. Duncan
  • Publication number: 20190331463
    Abstract: A protective clothing system is disclosed that provides cooling via a cooling subsystem. The cooling subsystem can incorporate one or more perforated tubes to provide positive air pressure throughout the clothing system via an external pump. In embodiments, the tubes can be positioned adjacent a spacer mesh product allowing for comfort and unrestricted air flow from the tubing. In various embodiments, the perforated tubing can target specific areas such as the sternum of the chest and the spine region of the back where most of the blood flows in order to cool down the core temperature.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Inventors: David B. Strum, David M. Duncan
  • Publication number: 20180168289
    Abstract: A shoulder strap device and method provides a movable and/or swiveling attachment arrangement which spreads the load to the wearer's specific shape. Embodiments of the device include a set of strap ring components, each strap ring component having a substantially linearly extending base portion and a substantially curvilinearly extending retention portion, first and second connector items or straps secured to respective subsets of the strap ring components, and a body garment secured to the strap ring components.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: David B. Strum, David M. Duncan
  • Patent number: 9894962
    Abstract: A shoulder strap device and method provides a movable and/or swiveling attachment arrangement which spreads the load to the wearer's specific shape. Embodiments of the device include a set of strap ring components, each strap ring component having a substantially linearly extending base portion and a substantially curvilinearly extending retention portion, first and second connector items or straps secured to respective subsets of the strap ring components, and a body garment secured to the strap ring components.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: February 20, 2018
    Assignee: Velocity Systems LLC
    Inventors: David B. Strum, David M. Duncan
  • Patent number: 9877525
    Abstract: An armor-enhanced under-clothing system and/or article is provided that employs compression fabric as a figure conforming body suit element, padded elements throughout various selected parts of the body suit element for shape modification, and one or more static fabric material pockets, according to embodiments of the present invention. Anti-ballistic panels of suitable material and thickness can be inserted into the static fabric pocket element(s) designed to carry the panels.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 30, 2018
    Assignee: Velocity Systems LLC
    Inventors: David B. Strum, David M. Duncan
  • Patent number: 9396667
    Abstract: Some embodiments provide an automated training system configured for use with two-wheeled automotive vehicles for permitting a user to operate a two-wheeled automotive vehicle on the system in a manner that simulates actual operation on a road or dirt pathway and incorporating kinesthetic sensory input to a person seated on and operating the automotive vehicle as part of an effort to learn how to operate the automotive vehicle safely and effectively in a controlled off-road environment. In some embodiments, the automated training system supports a real motorcycle. In some embodiments, the automated training system comprises an electronic actuator configured to actuate a piston within a cylinder in order to simulate realistic operation of the motorcycle as if it were being operated on a road or dirt pathway.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: July 19, 2016
    Assignee: Paul Michael Bober
    Inventors: Paul Michael Bober, David M. Duncan
  • Patent number: 9280909
    Abstract: Some embodiments provide a hydraulically assisted stationary motorcycle training device for teaching motorcycle riding skills in a controlled and supervised environment. In some embodiments, the stationary motorcycle training device includes a set of equipment for responding to operations of a motorcycle positioned on the stationary motorcycle training device. In some embodiments, the stationary motorcycle training device is hydraulically assisted for simulating a motorcycle riding experience to a person seated on the motorcycle. includes a set of operational motorcycle equipment for learning motorcycle riding skills.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 8, 2016
    Inventors: Paul Michael Bober, David M. Duncan
  • Publication number: 20150272234
    Abstract: An armor-enhanced under-clothing system and/or article is provided that employs compression fabric as a figure conforming body suit element, padded elements throughout various selected parts of the body suit element for shape modification, and one or more static fabric material pockets, according to embodiments of the present invention. Anti-ballistic panels of suitable material and thickness can be inserted into the static fabric pocket element(s) designed to carry the panels.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: David B. Strum, David M. Duncan
  • Publication number: 20150196099
    Abstract: A shoulder strap device and method provides a movable and/or swiveling attachment arrangement which spreads the load to the wearer's specific shape. Embodiments of the device include a set of strap ring components, each strap ring component having a substantially linearly extending base portion and a substantially curvilinearly extending retention portion, first and second connector items or straps secured to respective subsets of the strap ring components, and a body garment secured to the strap ring components.
    Type: Application
    Filed: January 12, 2015
    Publication date: July 16, 2015
    Inventors: David B. Strum, David M. Duncan
  • Publication number: 20140315157
    Abstract: Some embodiments provide a hydraulically assisted stationary motorcycle training device for teaching motorcycle riding skills in a controlled and supervised environment. In some embodiments, the stationary motorcycle training device includes a set of equipment for responding to operations of a motorcycle positioned on the stationary motorcycle training device. In some embodiments, the stationary motorcycle training device is hydraulically assisted for simulating a motorcycle riding experience to a person seated on the motorcycle.
    Type: Application
    Filed: April 23, 2013
    Publication date: October 23, 2014
    Inventors: PAUL MICHAEL BOBER, DAVID M. DUNCAN
  • Publication number: 20120174280
    Abstract: A channel release system provides a platform member and sub-components that stack in a staggered/separated order and align in a channel when used together. A pin member slides through the channel and locks them together. When the pin is pulled through the channels, any secured components or equipment are released and can fall away. The channel release system of the present invention enables users to quickly release clothing, materials and other items to improve mobility, facilitate care and provide other benefits.
    Type: Application
    Filed: July 2, 2009
    Publication date: July 12, 2012
    Inventors: David R. Strum, David M. Duncan, Gregory E. Day
  • Publication number: 20120017347
    Abstract: Outerwear in the form of a wearable personal device can be customized to accept auxiliary gear using a quick attach/detach system that provides for minimal alteration to the aesthetics of the auxiliary gear and the wearable personal device. The system of the present invention can be offered in varied sizes and shapes to accommodate not only dimensional requests, but capacity of auxiliary equipment. In one embodiment, the system of the present invention can be employed with a webbing system previously attached to the wearable personal device. The present invention can include a replaceable female buckle designed to mate with to corresponding male buckles placed on any of a variety of auxiliary equipment items, thereby facilitating quick and simple attachment and detachment of the auxiliary equipment.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: David B. Strum, David M. Duncan
  • Patent number: 4004256
    Abstract: High frequency amplifier stage having a transistor operating in either a common base or a common emitter mode, with the collector connected directly to a ground plane. A transmission line connected to the input of the transistor translates the reference point of an input signal from the ground plane to the common terminal of the transistor and provides output matching for the transistor.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: January 18, 1977
    Inventor: David M. Duncan