Bryce L.
Bryce L. Betteridge, University Place, WA US
Patent application number | Description | Published |
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20100098914 | IMPACT ABSORBING SAFETY MATTING SYSTEM WITH ELASTOMERIC SUB-SURFACE STRUCTURE - A resilient mat system where a mat has overall mat thickness T, and the mat has an upper layer with an upper layer thickness t, and a plurality of supporting resilient substructure columns, each column having a relatively uniform height h, such that T=t+h, wherein the ratio of h:t>3.5 for values of T>about 0.9 inch. Each column has a frusto-conical column wall, a central void, and a column bottom. The frusto-conical column has its smaller diameter end at the column bottom, a plurality of the columns optionally further have a vertical stiffening rib along a portion of the upper zone of the column wall. | 04-22-2010 |
Bryce L. Hesterman, Ft. Collins, CO US
Patent application number | Description | Published |
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20110075445 | Wide range DC power supply with bypassed multiplier circuits - A power supply provides dc power over a wide range of output voltages at full operating power by utilizing multiplying circuits ( | 03-31-2011 |
Bryce L. Hesterman, Fort Collins, CO US
Patent application number | Description | Published |
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20080291712 | INTERLEAVED SOFT SWITCHING BRIDGE POWER CONVERTER - An interleaved soft switching bridge power converter comprises switching poles operated in an interleaved manner so as to substantially reduce turn-on switching losses and diode reverse-recovery losses in the switching pole elements. Switching poles are arranged into bridge circuits that are operated so as to provide a desired voltage, current and/or power waveform to a load. By reducing switching turn on and diode reverse recovery losses, soft switching power converters of the invention may operate efficiently at higher switching frequencies. Soft switching power converters of the invention are well suited to high power and high voltage applications such as plasma processing, active rectifiers, distributed generation, motor drive inverters and class D power amplifiers. | 11-27-2008 |