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Brad Pohl Phones & Addresses

  • 2401 Silver Spur Ln, Leander, TX 78641 (512) 260-6679
  • 14238 Ridge Dale Dr, San Antonio, TX 78233 (210) 646-6795
  • 2322 Goat Holw, San Antonio, TX 78232 (210) 495-4478
  • Irving, TX

Work

Company: Enviolo Jan 2020 Position: Chief engineer, product research

Education

Degree: Bachelor of Science In Mechanical Engineering, Bachelors School / High School: The University of Texas at San Antonio 1996 to 1998

Industries

Mechanical Or Industrial Engineering

Resumes

Resumes

Brad Pohl Photo 1

Chief Engineer, Product Research

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Location:
2401 Silver Spur Ln, Leander, TX 78641
Industry:
Mechanical Or Industrial Engineering
Work:
Enviolo
Chief Engineer, Product Research

Southwest Research Institute Nov 1, 1999 - May 1, 2004
Research Engineer

Fallbrook Technologies Nov 1, 1999 - May 1, 2004
Principal Engineer at Fallbrook Technologies
Education:
The University of Texas at San Antonio 1996 - 1998
Bachelor of Science In Mechanical Engineering, Bachelors
Hallmark College 1989 - 1991
Associates

Publications

Us Patents

Torsion Disc For Use In A Continuously Variable Transmission

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US Patent:
7785228, Aug 31, 2010
Filed:
Aug 20, 2007
Appl. No.:
11/842118
Inventors:
Robert A Smithson - Cedar Park TX, US
Brad P Pohl - Leander TX, US
Oronde J Armstrong - Austin TX, US
Donald C Miller - Fallbrook CA, US
Daniel J Dawe - Austin TX, US
Fernand A Thomassy - Liberty Hill TX, US
Matthew P Simister - Austin TX, US
Wesley R Poth - Leander TX, US
Jon M Nichols - Georgetown TX, US
Charles B Lohr - Austin TX, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 13/00
US Classification:
476 67
Abstract:
A continuously variable transmission (CVT) having a torsion disc for a CVT. The torsion disc includes a splined bore about its central axis, an annular recess formed in the disc for receiving the race of a bearing, and a raised surface for supporting a torsion spring. In one embodiment, the torsion disc includes a number of holes for receiving dowels that support a torsion spring. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.

Continuously Variable Transmission

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US Patent:
7871353, Jan 18, 2011
Filed:
Jun 11, 2008
Appl. No.:
12/137464
Inventors:
Jon M Nichols - Georgetown TX, US
Brad P Pohl - Leander TX, US
Daniel J Dawe - Austin TX, US
Oronde J Armstrong - Austin TX, US
Charles B Lohr - Austin TX, US
Loren T McDaniel - Austin TX, US
Matthew P Simister - Austin TX, US
Fernand A Thomassy - Liberty Hill TX, US
Ghayyurul I Usmani - Yukon OK, US
Paul M Elhardt - Charlotte NC, US
Terry L Stewart - Blanchard OK, US
Peter D Poxton - Mustang OK, US
Elton L Eidson - Norman OK, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 15/26
US Classification:
476 37, 476 61, 476 65, 74 56
Abstract:
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. In another embodiment, an axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Various inventive idler-and-shift-cam assemblies can be used to facilitate shifting the ratio of a CVT. Embodiments of a hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.

Continuously Variable Transmission

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US Patent:
7909727, Mar 22, 2011
Filed:
Aug 20, 2007
Appl. No.:
11/842021
Inventors:
Robert A Smithson - Cedar Park TX, US
Brad P Pohl - Leander TX, US
Oronde J Armstrong - Austin TX, US
Donald C Miller - Fallbrook CA, US
Daniel J Dawe - Austin TX, US
Fernand A Thomassy - Liberty Hill TX, US
Matthew P Simister - Austin TX, US
Wesley R Poth - Leander TX, US
Jon M Nichols - Georgetown TX, US
Charles B Lohr - Austin TX, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 15/00
F16H 15/26
US Classification:
476 36, 476 38
Abstract:
A continuously variable transmission (CVT) having a main shaft configured to support and position various components of the CVT. Shift cam discs cooperate with ball-leg assemblies to shift the transmission ration of the CVT. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.

Continuously Variable Transmission

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US Patent:
7914029, Mar 29, 2011
Filed:
Feb 28, 2008
Appl. No.:
12/039591
Inventors:
Donald C Miller - Fallbrook CA, US
Robert A Smithson - Cedar Park TX, US
Brad P Pohl - Leander TX, US
Charles B Lohr - Austin TX, US
Jon M Nichols - Georgetown TX, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
B62M 1/02
US Classification:
280261, 475189, 475196, 476 36
Abstract:
Traction planets and traction rings can be operationally coupled to a planetary gearset to provide a continuously variable transmission (CVT). The CVT can be used in a bicycle. In one embodiment, the CVT is mounted on the frame of the bicycle at a location forward of the rear wheel hub of the bicycle. In one embodiment, the CVT is mounted on and supported by members of the bicycle frame such that the CVT is coaxial with the crankshaft of the bicycle. The crankshaft is configured to drive elements of the planetary gearset, which are configured to operationally drive the traction rings and the traction planets. Inventive component and subassemblies for such a CVT are disclosed. A shifting mechanism includes a plurality of pivot arms arranged to pivot about the centers of the traction planets as a shift pin hub moves axially.

Continuously Variable Transmission

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US Patent:
7959533, Jun 14, 2011
Filed:
Oct 3, 2006
Appl. No.:
11/543311
Inventors:
Jon M. Nichols - Georgetown TX, US
Brad P. Pohl - Leander TX, US
Daniel J. Dawe - Austin TX, US
Oronde J. Armstrong - Austin TX, US
Charles B. Lohr - Austin TX, US
Loren T. McDaniel - Austin TX, US
Matthew P. Simister - Austin TX, US
Fernand A. Thomassy - Liberty Hill TX, US
Ghayyurul I. Usmani - Yukon OK, US
Paul M. Elhardt - Charlotte NC, US
Terry L. Stewart - Blanchard OK, US
Peter D. Poxton - Mustang OK, US
Elton L. Eidson - Norman OK, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 15/26
US Classification:
476 37, 476 38, 476 65
Abstract:
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. In another embodiment, an axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Various inventive idler-and-shift-cam assemblies can be used to facilitate shifting the ratio of a CVT. Embodiments of a hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.

Continuously Variable Transmission

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US Patent:
7963880, Jun 21, 2011
Filed:
Aug 20, 2007
Appl. No.:
11/842039
Inventors:
Robert A Smithson - Cedar Park TX, US
Brad P Pohl - Leander TX, US
Oronde J Armstrong - Austin TX, US
Donald C Miller - Fallbrook CA, US
Daniel J Dawe - Austin TX, US
Fernand A Thomassy - Liberty Hill TX, US
Matthew P Simister - Austin TX, US
Wesley R Poth - Leander TX, US
Jon M Nichols - Georgetown TX, US
Charles B Lohr - Austin TX, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 15/26
US Classification:
476 38, 476 47, 476 70
Abstract:
A continuously variable transmission (CVT) having a main shaft configured to support and position various components of the CVT. Shift cam discs cooperate with ball-leg assemblies to shift the transmission ration of the CVT. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.

Continuously Variable Transmission

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US Patent:
7967719, Jun 28, 2011
Filed:
Aug 20, 2007
Appl. No.:
11/842007
Inventors:
Robert A Smithson - Cedar Park TX, US
Brad P Pohl - Leander TX, US
Oronde J Armstrong - Austin TX, US
Donald C Miller - Fallbrook CA, US
Daniel J Dawe - Austin TX, US
Fernand A Thomassy - Liberty Hill TX, US
Matthew P Simister - Austin TX, US
Wesley R Poth - Leander TX, US
Jon M Nichols - Georgetown TX, US
Charles B Lohr - Austin TX, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 15/26
US Classification:
476 37, 476 38
Abstract:
A continuously variable transmission (CVT) having a main shaft configured to support and position various components of the CVT. Shift cam discs cooperate with ball-leg assemblies to shift the transmission ration of the CVT. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.

Continuously Variable Transmission

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US Patent:
7976426, Jul 12, 2011
Filed:
Aug 20, 2007
Appl. No.:
11/842050
Inventors:
Robert A Smithson - Cedar Park TX, US
Brad P Pohl - Leander TX, US
Oronde J Armstrong - Austin TX, US
Donald C Miller - Fallbrook CA, US
Daniel J Dawe - Austin TX, US
Fernand A Thomassy - Liberty Hill TX, US
Matthew P Simister - Austin TX, US
Wesley R Poth - Leander TX, US
Jon M Nichols - Georgetown TX, US
Charles B Lohr - Austin TX, US
Assignee:
Fallbrook Technologies Inc. - San Diego CA
International Classification:
F16H 15/26
US Classification:
476 38, 476 67
Abstract:
A continuously variable transmission (CVT) having a number of tiltable ball-leg assemblies configured angularly about a longitudinal axis. Each ball-leg assembly is in contact with, and guided through a tilting motion by an axially translating shift cam having a convex shape. The convex shape of the shift cam can have a profile defined by a set of parametric equations. In one embodiment, the profile of the shift cam vary according to the location of the contact point between an idler and the ball-leg assembly as well as the amount of relative axial motion between the ball-leg assembly and the idler. In some embodiments, the profile of the shift cam can be configured to control the axial translation of the idler relative to the change in tilt angle of the ball-leg assembly. In other embodiments, a roll-slide factor can be used to characterize the axial translation of the idler relative to the tilt angle of the ball-leg assembly.
Brad P Pohl from Leander, TX, age ~52 Get Report