公开(公告)号：US5492202A

公开(公告)日：1996-02-20

申请号：US384175

申请日：1995-02-06

申请人： Frederick L. Drotar ,  John C. Hoffman ,  Christian A. Valachovic

发明人： Frederick L. Drotar ,  John C. Hoffman ,  Christian A. Valachovic

IPC分类号： F16D65/00 ,  F16D65/14 ,  F16D65/38

CPC分类号： F16D65/0006 ,  F16D2125/06

摘要： A motor vehicle disc brake assembly includes a caliper (12) supporting a pair of friction elements (32,33) to be applied against opposite sides (35,37) of a rotor (14). The caliper (12) forms a cylinder bore (18) in which a brake piston apparatus (40) is slidably mounted to be actuated by hydraulic or other fluid pressure from a master cylinder (20). The brake piston apparatus (40) includes a first piston member (46) and a second piston member (60) disposed within the cylinder bore (18) and having a compliant member (82) disposed therebetween. The compliant member (82) substantially isolates the first piston member (46) from vibrations generated by friction element contact with the rotor (14), substantially eliminating operator detectable tactile vibrations.

摘要翻译： 机动车辆盘式制动器组件包括支撑一对被施加到转子（14）的相对侧（35,37）上的一对摩擦元件（32,33）的卡钳（12）。 卡钳（12）形成气缸孔（18），其中制动活塞装置（40）可滑动地安装以由来自主缸（20）的液压或其它流体压力致动。 制动活塞装置（40）包括设置在气缸孔（18）内的第一活塞构件（46）和第二活塞构件（60），并且具有设置在它们之间的顺应构件（82）。 柔性构件（82）基本上将第一活塞构件（46）与摩擦元件与转子（14）接触产生的振动隔离开，基本上消除了操作者可触觉的触觉振动。

公开(公告)号：US08379850B1

公开(公告)日：2013-02-19

申请号：US12900805

申请日：2010-10-08

申请人： Brendan K. Bridgford ,  Stephen M. Trimberger ,  Jason J. Moore ,  Edward S. Peterson ,  James Wesselkamper ,  John C. Hoffman

发明人： Brendan K. Bridgford ,  Stephen M. Trimberger ,  Jason J. Moore ,  Edward S. Peterson ,  James Wesselkamper ,  John C. Hoffman

IPC分类号： H04L9/00 ,  H04K1/04

CPC分类号： H04L9/0822 ,  H04L9/003 ,  H04L9/0637

摘要： In one embodiment, a cryptographic device is provided. The cryptographic device includes a persistent memory and a decryption control circuit coupled to the persistent memory. The decryption control circuit is configured to receive an encrypted data stream and decrypt a first portion of the encrypted data stream using a first cryptographic key stored in the persistent memory, the first portion including a second cryptographic key. The decryption circuit is configured to decrypt a second portion of the encrypted data stream using the second cryptographic key, the second portion of the encrypted data stream including payload data.

摘要翻译： 在一个实施例中，提供了一种加密设备。 密码装置包括持久存储器和耦合到持久存储器的解密控制电路。 解密控制电路被配置为使用存储在永久存储器中的第一密码来接收加密数据流并解密加密数据流的第一部分，第一部分包括第二加密密钥。 解密电路被配置为使用第二加密密钥来解密加密数据流的第二部分，加密数据流的第二部分包括有效载荷数据。

公开(公告)号：US07526917B1

公开(公告)日：2009-05-05

申请号：US12189216

申请日：2008-08-11

申请人： John C. Hoffman

发明人： John C. Hoffman

IPC分类号： B01D53/00

CPC分类号： F04B37/14 ,  F04B37/02

摘要： A gas diffusion vacuum device includes a supply of gas, a nonpermeable enclosure, a supply of liquid, an open liquid reservoir and a gas permeable cover. A first end of the nonpermeable enclosure is retained in the open liquid reservoir. The volume of gas is supplied through a side wall of the nonpermeable enclosure. The gas is preferably carbon dioxide. The gas permeable cover preferably includes a diffusion barrier and a porous diffusion barrier support. The diffusion barrier is wrapped over the porous diffusion barrier support and secured to a side wall of the nonpermeable enclosure. As the gas diffuses through the gas permeable cover, a vacuum is created to raise a column of liquid. A second embodiment of the gas diffusion vacuum device includes a supply of gas, a nonpermeable enclosure and a gas permeable cover. A vacuum created is used to perform work with an air driven device.

摘要翻译： 气体扩散真空装置包括气体供应，不透气外壳，液体供应，开放液体储存器和透气盖。 不透气外壳的第一端保持在开放的液体储存器中。 气体的体积通过不透气外壳的侧壁供应。 气体优选为二氧化碳。 透气性盖优选包括扩散阻挡层和多孔扩散阻挡层。 扩散阻挡层被包裹在多孔扩散阻挡载体上并固定到不透气外壳的侧壁上。 当气体通过透气盖扩散时，产生真空以提高液体柱。 气体扩散真空装置的第二实施例包括供应气体，不透气外壳和透气盖。 创建的真空用于与空气驱动装置进行工作。

公开(公告)号：US4279255A

公开(公告)日：1981-07-21

申请号：US124940

申请日：1980-02-26

申请人： John C. Hoffman

发明人： John C. Hoffman

IPC分类号： A61F7/00 ,  A61F7/02 ,  H05B3/34 ,  H05B3/06

CPC分类号： A61F7/007 ,  H05B3/34 ,  A61F2007/0001 ,  A61F2007/0078 ,  H05B2203/002 ,  H05B2203/005 ,  H05B2203/014

摘要： A portable therapeutic heating device is provided that may be readily worn and transported by a user. A flexible heating unit is attached to a body part and is capable of raising the skin temperature of that body part to about 102.degree.-108.degree. F. The flexible heating unit includes a plurality of distinct sets of electric resistance heating elements. The flexible heating unit is connected by a flexible tape to a battery pack which is mounted to the approximate center of gravity of the user's body. A switch is mounted on the battery pack, and provides for selection of which sets of electric resistance heating elements will be energized by a battery received by the battery pack, to thereby vary the amount of heat applied by the heating unit to a body part. The switch is mounted in a cutout formed in a casing defining the battery pack. A pair of rechargeable lead-acid "D" batteries are desirably received by the battery pack, and circuitry is provided for indicating when the voltage of a rechargeable battery received by the battery pack reaches a predetermined value below the rated value of the battery. A printed circuit board is mounted completely covering the batteries in the battery pack casing, between the batteries and the casing top, with all of the necessary electrical components operatively connected to the printed circuit board.

摘要翻译： 提供了便携式治疗加热装置，其可以由用户容易地佩戴和运输。 柔性加热单元附接到主体部分并且能够将该身体部分的皮肤温度提高到约102°-108°F。柔性加热单元包括多个不同的电阻加热元件组。 柔性加热单元通过柔性带连接到安装到使用者身体的大致重心的电池组上。 开关安装在电池组上，并且提供选择由电池组接收的电池为哪一组电阻加热元件供电，从而改变加热单元施加到主体部分的热量。 开关安装在形成在限定电池组的壳体中的切口中。 电池组希望接收一对可再充电铅酸“D”电池，并且提供电路用于指示电池组所接收的可再充电电池的电压何时达到低于电池额定值的预定值。 印刷电路板完全覆盖在电池组壳体中的电池和壳体顶部之间的电池，所有必需的电气部件可操作地连接到印刷电路板。