Patents by Inventor David A. Poff

David A. Poff 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: 20240092441
    Abstract: An automated bicycle lighting system comprising light modules that contain sensors and a processor which enable the color and/or flash state of the emitted light to be changed depending upon the physical orientation of the modules is provided. The sensors and processor also allow the operating state of the light modules to be adjusted depending upon whether movement of the light modules is sensed. The modules are used in combination with pedals configured to removably receive the modules and/or with an auxiliary mount that provides for mounting the modules to other components of a bicycle, such as, for example, handlebars, seat-posts, frame tubes, helmets and/or a rider's clothing.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 21, 2024
    Inventors: Erik Teig de Brun, Stephen Dewei Ahnert, Scott David Poff, Justin T. Dodd
  • Publication number: 20240025504
    Abstract: An automated bicycle lighting system comprising light modules that contain sensors and a processor which enable the color and/or flash state of the emitted light to be changed depending upon the physical orientation of the modules is provided. The sensors and processor also allow the operating state of the light modules to be adjusted depending upon whether movement of the light modules is sensed. The modules are used in combination with pedals configured to removably receive the modules and/or with an auxiliary mount that provides for mounting the modules to other components of a bicycle, such as, for example, handlebars, seat-posts, frame tubes, helmets and/or a rider's clothing.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Inventors: Erik Teig de Brun, Stephen Dewei Ahnert, Scott David Poff, Justin T. Dodd
  • Patent number: 10808741
    Abstract: A quick-release clamping mechanism secures two objects and rapidly attaches or detaches to secure the objects to one another in a rigid, repeatable manner. The mechanism is formed from two interconnecting contiguous pieces of material, free from hinges or other attachment devices. The first contiguous piece is attached to a first object, and the second contiguous piece is attached to a second object to be secured to the first object. The piece that forms the first profile can be a rail with a male protrusion. The piece that forms the second profile can be a rail with a female cavity that receives the male protrusion. The mechanism also includes a retention channel, a clamp bar, and a tension device that applies tension to the clamp bar to secure the mechanism. A secondary retention mechanism is provided to prevent separation of the components if the primary locking feature is disengaged inadvertently.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: October 20, 2020
    Assignee: Redshift Sports, LLC
    Inventors: Stephen Dewei Ahnert, Erik De Brun, Scott David Poff
  • Publication number: 20190300084
    Abstract: A bicycle suspension seatpost with a four-bar linkage design and a suspension spring element located within the seatpost tube is provided. The bicycle seatpost comprises a seatpost tube configured to be secured to a bicycle frame, a pair of substantially vertically stacked linkage bars rotatably connected to the seatpost tube, a rear linkage rotatably connected to the pair of substantially vertically stacked linkage bars, and a biasing member disposed within the protrusion to resist rotation of the pair of substantially vertically stacked linkage bars about one or more axes of rotation.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 3, 2019
    Applicant: Redshift Sports, LLC
    Inventors: Stephen Dewei Ahnert, Erik Teig de Brun, Scott David Poff
  • Patent number: 10167040
    Abstract: A bicycle suspension stem with an integrated pivot between a static part and a suspended part to provide vibration and impact absorption is provided. A bicycle stem includes a static part configured to connect to a steerer of a bicycle fork, the static part comprising a protrusion, a suspended part rotatably connected to the static part and configured to connect to a handlebar, and a biasing member disposed between the protrusion and an inside surface of the suspended part to resist rotation of the suspended part about the axis of rotation.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: January 1, 2019
    Assignee: Redshift Sports LLC
    Inventors: Stephen Dewei Ahnert, Erik Teig De Brun, Scott David Poff
  • Patent number: 9950760
    Abstract: A bicycle seat position changer is provided which allows the rider to quickly change the effective seat tube angle of the bicycle without requiring the use of tools. The seat position changer allows the rider to move the seat between a forward position and a rearward position, allowing a rider to select a more aerodynamic position or a traditional road position while riding, as required for comfort or by riding conditions. The seat position changer allows the rider to adjust the seat position between the forward and rearward positions while maintaining a consistent difference in seat-to-bottom-bracket length. In one embodiment the consistent difference in seat-to-bottom-bracket length is close to zero and imperceptible to the rider.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: April 24, 2018
    Assignee: Redshift Sports LLC
    Inventors: Stephen Dewei Ahnert, Erik Teig De Brun, Scott David Poff
  • Publication number: 20170043838
    Abstract: A bicycle suspension stem with an integrated pivot between a static part and a suspended part to provide vibration and impact absorption is provided. A bicycle stem includes a static part configured to connect to a steerer of a bicycle fork, the static part comprising a protrusion, a suspended part rotatably connected to the static part and configured to connect to a handlebar, and a biasing member disposed between the protrusion and an inside surface of the suspended part to resist rotation of the suspended part about the axis of rotation.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 16, 2017
    Inventors: Stephen Dewei AHNERT, Erik Teig DE BRUN, Scott David POFF
  • Publication number: 20160075389
    Abstract: A bicycle seat position changer is provided which allows the rider to quickly change the effective seat tube angle of the bicycle without requiring the use of tools. The seat position changer allows the rider to move the seat between a forward position and a rearward position, allowing a rider to select a more aerodynamic position or a traditional road position while riding, as required for comfort or by riding conditions. The seat position changer allows the rider to adjust the seat position between the forward and rearward positions while maintaining a consistent difference in seat-to-bottom-bracket length. In one embodiment the consistent difference in seat-to-bottom-bracket length is close to zero and imperceptible to the rider.
    Type: Application
    Filed: May 5, 2014
    Publication date: March 17, 2016
    Applicant: Redshift Sport LLC
    Inventors: Stephen Dewei Ahnert, Erik Teig De Brun, Scott David Poff
  • Publication number: 20160025121
    Abstract: A quick-release clamping mechanism secures two objects and rapidly attaches or detaches to secure the objects to one another in a rigid, repeatable manner. The mechanism is formed from two interconnecting contiguous pieces of material, free from hinges or other attachment devices. The first contiguous piece is attached to a first object, and the second contiguous piece is attached to a second object to be secured to the first object. The piece that forms the first profile can be a rail with a male protrusion. The piece that forms the second profile can be a rail with a female cavity that receives the male protrusion. The mechanism also includes a retention channel, a clamp bar, and a tension device that applies tension to the clamp bar to secure the mechanism. A secondary retention mechanism is provided to prevent separation of the components if the primary locking feature is disengaged inadvertently.
    Type: Application
    Filed: March 17, 2014
    Publication date: January 28, 2016
    Applicant: Redshift Sports LLC
    Inventors: Stephen Dewei Ahnert, Erik De Brun, Scott David Poff
  • Publication number: 20070026188
    Abstract: Disclosed is a method and apparatus for forming a circumferential skin surrounding a central cellular structure of an extruded honeycomb article. The method and apparatus may be used to produce defect-free skins and/or skins having large thickness and a high degree of particle alignment thereby preferably exhibiting CTE comparable to the extruded webs. These benefits are achieved by providing a die and method wherein a flow, Q, exiting any two active ones of a plurality of peripheral slots forming the skin is substantially equal. Also disclosed is a thick-skinned ceramic article having a thick extruded skin (ts?>5 tw?) with an I-value comparable to the webs.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Inventors: Dana Bookbinder, Thomas Brew, Frank Fabian, Darin Felty, Robert Lubberts, David Poff, Kenneth Sariego, Andrew Sullivan, David Treacy
  • Patent number: 4369684
    Abstract: An improved apparatus for cutting strip material is disclosed in which a strip (16) such as flattened plastic tubing is intermittently fed across a cutting edge (64, 66) mounted on a rotatable platform (34). A cutting element (84098) is moved back and forth along the cutting edge to sever the strip into segments having a leading edge at one angle to the axis o- the strip and a trailing edge at another angle.
    Type: Grant
    Filed: November 18, 1980
    Date of Patent: January 25, 1983
    Assignee: General Electric Company
    Inventors: Gifford T. Perman, David A. Poff
  • Patent number: 4334193
    Abstract: A tester of electrochemical storage cells includes a pair of arms arranged for pivoting as jaws, each arm terminating in one member in each of two pairs of Kelvin contacts. A stationary member between the arms terminates in the second members of the pairs of Kelvin contacts. In response to the activation of an electrical circuit by a switch sensitive to the presence of the cell, the jaws are urged together to grip the terminals of the cell while maintaining a precise alignment of the Kelvin contacts. Thereby a test circuit is connected to the cell.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: June 8, 1982
    Assignee: General Electric Company
    Inventors: Lester A. Gordy, David A. Poff
  • Patent number: 4325799
    Abstract: A system for the formation of the electrodes of an electrolytic cell, such as a lead acid cell, is built of cabinets housing panels, each of which supports an array of the cells. The cells are connected to a source of electric power for charging and discharging the cells during the formation operation. The connection of the cells to the power source is accomplished by strip conductors located behind apertures in the panels wherein the cells are placed and through which access to the conductors is provided for the cell terminals. Edges of the conductors are offset relative to the apertures, corresponding to an asymmetry in the location of the terminals of a cell, to provide a keying of the connection. The cells are securely grasped by friction forces exerted on the terminals by resilient edges of the conductors.
    Type: Grant
    Filed: March 11, 1981
    Date of Patent: April 20, 1982
    Assignee: General Electric Company
    Inventors: Lester A. Gordy, David A. Poff
  • Patent number: 4296546
    Abstract: Apparatus for inserting a core member for an electrochemical cell into an open-ended cell casing, including: casing support means; a collet assembly comprised of annular segments movable relative to each other so as to fix the dimension of the perimeter of an interior guiding surface, the guiding surface preferably being radially inwardly tapered; and means for advancing the core member through the collet assembly and into the casing. The apparatus also comprises means for controlling the position of the annular segments of the collet assembly selectively to increase or decrease the perimeter of the guiding surface.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: October 27, 1981
    Assignee: General Electric Company
    Inventors: Michael S. Hill, David A. Poff