Patents by Inventor Eric Hjertberg
Eric Hjertberg 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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Patent number: 9770940Abstract: A wheel having a longitudinal plane normal to an axis of rotation. The wheel has a rim with side surfaces on opposite sides of the longitudinal plane. A hub is concentrically disposed relative to the rim. Two unitary side elements are disposed on opposite sides of the longitudinal plane and are coupled to the rim and to end portions of the hub. Each of the unitary side elements has an annular sidewall, a flange portion, and a plurality of spokes that do not cross the longitudinal plane and that integrally interconnect the annular sidewall and the flange portion. An end portion of each spoke of the one side element is tied to the end portion of an aligned spoke of the other side element adjacent to the sidewall to restrict the tied end portions from moving away from each other.Type: GrantFiled: July 8, 2015Date of Patent: September 26, 2017Assignee: Cayucos Cowboys, LLCInventors: Max U. Kismarton, Eric Hjertberg
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Patent number: 9713939Abstract: Carbon fiber bicycle wheels are formed from parts cut from carbon fiber cloth and then joined together to form a rim, sidewalls, spokes, flanges and a center tunnel on which the flanges are mounted. The parts are then assembled, bonded together, and cured to form a wheel. During assembly, the spokes and the wheel are placed in tension by moving the flanges outwardly on the center tunnel after assembly and then bonding them in place to stiffen and strengthen the wheel. The spokes of the drive side of the rear wheel are specially shaped to accommodate torque transfer forces generated by pedaling.Type: GrantFiled: February 1, 2016Date of Patent: July 25, 2017Assignee: Cayucos Cowboys, LLCInventors: Max U. Kismarton, Eric Hjertberg, G. Kyle Lobisser
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Publication number: 20160144658Abstract: Carbon fiber bicycle wheels are formed from parts cut from carbon fiber cloth and then joined together to form a rim, sidewalls, spokes, flanges and a center tunnel on which the flanges are mounted. The parts are then assembled, bonded together, and cured to form a wheel. During assembly, the spokes and the wheel are placed in tension by moving the flanges outwardly on the center tunnel after assembly and then bonding them in place to stiffen and strengthen the wheel. The spokes of the drive side of the rear wheel are specially shaped to accommodate torque transfer forces generated by pedaling.Type: ApplicationFiled: February 1, 2016Publication date: May 26, 2016Inventors: Max U. KISMARTON, Eric HJERTBERG, G. Kyle LOBISSER
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Publication number: 20150314640Abstract: A wheel having a longitudinal plane normal to an axis of rotation. The wheel has a rim with side surfaces on opposite sides of the longitudinal plane. A hub is concentrically disposed relative to the rim. Two unitary side elements are disposed on opposite sides of the longitudinal plane and are coupled to the rim and to end portions of the hub. Each of the unitary side elements has an annular sidewall, a flange portion, and a plurality of spokes that do not cross the longitudinal plane and that integrally interconnect the annular sidewall and the flange portion. An end portion of each spoke of the one side element is tied to the end portion of an aligned spoke of the other side element adjacent to the sidewall to restrict the tied end portions from moving away from each other.Type: ApplicationFiled: July 8, 2015Publication date: November 5, 2015Inventors: Max U. Kismarton, Eric Hjertberg
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Patent number: 9108461Abstract: A wheel having a longitudinal plane normal to an axis of rotation. The wheel has a rim with side surfaces on opposite sides of the longitudinal plane. A hub is concentrically disposed relative to the rim. Two unitary side elements are disposed on opposite sides of the longitudinal plane and are coupled to the rim and to end portions of the hub. Each of the unitary side elements has an annular sidewall, a flange portion, and a plurality of spokes that do not cross the longitudinal plane and that integrally interconnect the annular sidewall and the flange portion. An end portion of each spoke of the one side element is tied to the end portion of an aligned spoke of the other side element adjacent to the sidewall to restrict the tied end portions from moving away from each other.Type: GrantFiled: June 27, 2012Date of Patent: August 18, 2015Assignee: CAYUCOS COWBOYS, LLCInventors: Max U. Kismarton, Eric Hjertberg
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Publication number: 20140001820Abstract: A wheel having a longitudinal plane normal to an axis of rotation. The wheel has a rim with side surfaces on opposite sides of the longitudinal plane. A hub is concentrically disposed relative to the rim. Two unitary side elements are disposed on opposite sides of the longitudinal plane and are coupled to the rim and to end portions of the hub. Each of the unitary side elements has an annular sidewall, a flange portion, and a plurality of spokes that do not cross the longitudinal plane and that integrally interconnect the annular sidewall and the flange portion. An end portion of each spoke of the one side element is tied to the end portion of an aligned spoke of the other side element adjacent to the sidewall to restrict the tied end portions from moving away from each other.Type: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Applicant: Mad Fiber, LLCInventors: Max U. Kismarton, Eric Hjertberg
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Publication number: 20100301663Abstract: Carbon fiber bicycle wheels are formed from parts cut from carbon fiber cloth and then joined together to form a rim, sidewalls, spokes, flanges and a center tunnel on which the flanges are mounted. The parts are then assembled, bonded together, and cured to form a wheel. During assembly, the spokes and the wheel are placed in tension by moving the flanges outwardly on the center tunnel after assembly and then bonding them in place to stiffen and strengthen the wheel. The spokes of the drive side of the rear wheel are specially shaped to accommodate torque transfer forces generated by pedaling.Type: ApplicationFiled: February 19, 2010Publication date: December 2, 2010Applicant: MAD FIBERS, LLCInventors: Max Kismarton, Eric Hjertberg, G. Kyle Lobisser
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Publication number: 20060125312Abstract: A bicycle wheel includes a rim with a plurality of holes defined therethrough and each hole receives an insertion section of a nut. The insertion section is enclosed by an inner periphery of the hole and an end surface of the insertion section is in flush with an inner periphery of the rim. A threaded hole is defined in the end surface of the insertion section. A plurality of spokes each have a threaded end at a first end thereof so as to be threadedly connected to the threaded hole of one of the nuts. A hooking end is connected at a second of each spoke so as to be connected to a hub.Type: ApplicationFiled: December 15, 2004Publication date: June 15, 2006Inventors: Eric Hjertberg, Douglas Chiang
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Publication number: 20060119170Abstract: A bicycle rim includes a plurality of recesses defined in an inner periphery thereof and a through hole is defined through the rim and shares a common axis with the recess corresponding thereto. A plurality of spokes each have a threaded hole defined in a first end thereof which is fitted in one of the recesses and a plurality of bolts extend through the through holes and are threadedly connected to the threaded holes in the spokes. The through holes are small so that they do not reduce the structural strength of the rim and the end of each spoke is fitted in the recess to further position the spokes to the rim. A second end of each of the spokes is connected to a hub by extending a bolt through the hub and threadedly connected to the second end of each spoke.Type: ApplicationFiled: December 8, 2004Publication date: June 8, 2006Inventors: Eric Hjertberg, Douglas Chiang
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Publication number: 20050156461Abstract: A reinforcement structure for a bicycle includes a rim, and a plurality of carbon-fiber locking blocks, spokes and screw members. The carbon-fiber locking blocks are locked on the rim by the screw members and the spokes. Each of the carbon-fiber locking blocks has a first side formed with a planar surface rested on a respective screw member and a second side formed with an arc-shaped surface closely rested on the rim. Thus, the external force applied on each of the screw members is evenly distributed by the arc-shaped surface of the respective carbon-fiber locking block, thereby preventing the screw members from being distorted due to a stress concentration, so as to enhance the safety of riding the bicycle.Type: ApplicationFiled: January 21, 2004Publication date: July 21, 2005Inventors: Douglas Chiang, Eric Hjertberg
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Publication number: 20050023884Abstract: A bicycle rim includes a plurality of holes defined therethrough and each hole has a recess defined in an inner periphery of the rim. A diameter of the recess is larger than a diameter of the hole so that an end of a spoke is engaged with the recess. A screw extends through the hole in the rim and threadedly engaged with a threaded hole defined longitudinally in the end of the spoke.Type: ApplicationFiled: August 1, 2003Publication date: February 3, 2005Inventors: Douglas Chiang, Eric Hjertberg
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Patent number: 4706508Abstract: A tool for determining bicycle spoke tension consisting of two identical members pivoting in a scissors-like manner upon a screw retained sleeve. The two members are maintained at rest in a juxtaposed position by a spring in the center of the tool. The two members are forced apart and then permitted to close over a spoke. The tool not only grips the spoke, but it also deflects the spoke. A vernier scale is affixed to the tool which allows measuring spoke tension as a function of the amount of deflection.Type: GrantFiled: November 8, 1985Date of Patent: November 17, 1987Assignee: Wheelsmith, Inc.Inventors: Eric A. Hjertberg, Jon A. Hjertberg