公开(公告)号：US20130033092A1

公开(公告)日：2013-02-07

申请号：US13561600

申请日：2012-07-30

Applicant: YU-MING WU

Inventor： YU-MING WU

IPC: A61G5/10

CPC classification number: A61G5/1027 ,  A61G3/061 ,  A61G5/1037 ,  A61G5/1054 ,  A61G5/1086

Abstract: A hub assembly for a wheelchair has a hub device and a switch device. The hub device has a hub shell, an axle, a ring and a ratchet. The ratchet has a cylinder section. The cylinder section has a recess formed in an outer surface of the cylinder section. The switch device has a pin and a wire. The pin is capable of being selectively inserted into the recess. The wire is securely connected with the pin. Because the pin is inserted into the recess and the ratchet engages the ring, the hub shell along with a wheel cannot be moved unintentionally backward on a ramp.

Abstract translation: 用于轮椅的轮毂组件具有轮毂装置和开关装置。 轮毂装置具有轮毂壳，轴，环和棘轮。 棘轮具有圆筒部分。 气缸部分具有形成在气缸部分的外表面中的凹部。 开关器件有引脚和导线。 销能够选择性地插入到凹部中。 电线与引脚牢固连接。 由于销插入凹槽中并且棘轮与环接合，所以轮毂壳与轮不能在斜坡上无意地向后移动。

公开(公告)号：US20090038991A1

公开(公告)日：2009-02-12

申请号：US11837459

申请日：2007-08-10

Applicant: KUANG YEU WU ,  TSUNG-MIN CHIU ,  TZONG-BIN LIN ,  HUNG-CHUNG SHEN ,  YU-MING WU ,  TUNG-HSIUNG KUO

Inventor： KUANG YEU WU ,  TSUNG-MIN CHIU ,  TZONG-BIN LIN ,  HUNG-CHUNG SHEN ,  YU-MING WU ,  TUNG-HSIUNG KUO

IPC: C10G51/02 ,  B01J8/04

CPC classification number: B01D3/40 ,  C10G7/08

Abstract: The present invention relates to a process for recovering polar hydrocarbons from non-polar hydrocarbons, such as aromatics from non-aromatics, naphthenes from paraffins and isoparaffins, or olefins from paraffins and isoparaffins, in feed mixtures containing at least a measurable amount of heavier hydrocarbons. According to the invention, an improved extractive distillation (ED) process is disclosed for recovering aromatic hydrocarbons including benzene, toluene, and xylenes (BTX aromatics) from the C6-C8 petroleum streams containing at least a measurable amount of C9+ hydrocarbons.The invention also relates to an improved ED process for recovering mainly benzene and toluene from the C6-C7 petroleum streams containing at least a measurable amount of C8+ hydrocarbons. This invention is further directed toward the regeneration and recovery of the ED solvent utilized to recover and purify the aromatic hydrocarbons from the petroleum stream containing at least a measurable amount of hydrocarbons heavier than intend feedstock.

Abstract translation: 本发明涉及一种从非极性烃中回收极性烃的方法，例如来自非芳族化合物的芳族化合物，来自烷烃和异链烷烃的环烷烃，或来自链烷烃和异链烷烃的烯烃在含有至少可测量量的较重烃 。 根据本发明，公开了一种改进的萃取蒸馏（ED）方法，用于从含有至少可测量量的C 9+烃的C6-C8石油流中回收包括苯，甲苯和二甲苯（BTX芳族化合物）的芳烃。 本发明还涉及一种改进的ED方法，主要从含有至少可测量量的C8 +烃的C6-C7石油流中回收苯和甲苯。 本发明进一步涉及用于回收和纯化来自含有至少可测量量的比目标原料重的烃的石油流中的芳烃的ED溶剂的再生和回收。