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).
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Publication number: 20240092441Abstract: 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: ApplicationFiled: September 8, 2022Publication date: March 21, 2024Inventors: Erik Teig de Brun, Stephen Dewei Ahnert, Scott David Poff, Justin T. Dodd
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Publication number: 20240025504Abstract: 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: ApplicationFiled: October 5, 2023Publication date: January 25, 2024Inventors: Erik Teig de Brun, Stephen Dewei Ahnert, Scott David Poff, Justin T. Dodd
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Patent number: 10808741Abstract: 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: GrantFiled: March 17, 2014Date of Patent: October 20, 2020Assignee: Redshift Sports, LLCInventors: Stephen Dewei Ahnert, Erik De Brun, Scott David Poff
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Publication number: 20190300084Abstract: 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: ApplicationFiled: April 3, 2019Publication date: October 3, 2019Applicant: Redshift Sports, LLCInventors: Stephen Dewei Ahnert, Erik Teig de Brun, Scott David Poff
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Patent number: 10167040Abstract: 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: GrantFiled: August 12, 2016Date of Patent: January 1, 2019Assignee: Redshift Sports LLCInventors: Stephen Dewei Ahnert, Erik Teig De Brun, Scott David Poff
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Patent number: 9950760Abstract: 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: GrantFiled: May 5, 2014Date of Patent: April 24, 2018Assignee: Redshift Sports LLCInventors: Stephen Dewei Ahnert, Erik Teig De Brun, Scott David Poff
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Publication number: 20170043838Abstract: 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: ApplicationFiled: August 12, 2016Publication date: February 16, 2017Inventors: Stephen Dewei AHNERT, Erik Teig DE BRUN, Scott David POFF
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Publication number: 20160075389Abstract: 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: ApplicationFiled: May 5, 2014Publication date: March 17, 2016Applicant: Redshift Sport LLCInventors: Stephen Dewei Ahnert, Erik Teig De Brun, Scott David Poff
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Publication number: 20160025121Abstract: 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: ApplicationFiled: March 17, 2014Publication date: January 28, 2016Applicant: Redshift Sports LLCInventors: Stephen Dewei Ahnert, Erik De Brun, Scott David Poff
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Publication number: 20070026188Abstract: 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: ApplicationFiled: July 28, 2006Publication date: February 1, 2007Inventors: Dana Bookbinder, Thomas Brew, Frank Fabian, Darin Felty, Robert Lubberts, David Poff, Kenneth Sariego, Andrew Sullivan, David Treacy
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Patent number: 4369684Abstract: 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: GrantFiled: November 18, 1980Date of Patent: January 25, 1983Assignee: General Electric CompanyInventors: Gifford T. Perman, David A. Poff
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Patent number: 4334193Abstract: 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: GrantFiled: March 25, 1980Date of Patent: June 8, 1982Assignee: General Electric CompanyInventors: Lester A. Gordy, David A. Poff
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Patent number: 4325799Abstract: 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: GrantFiled: March 11, 1981Date of Patent: April 20, 1982Assignee: General Electric CompanyInventors: Lester A. Gordy, David A. Poff
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Patent number: 4296546Abstract: 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: GrantFiled: February 15, 1979Date of Patent: October 27, 1981Assignee: General Electric CompanyInventors: Michael S. Hill, David A. Poff