公开(公告)号：CA2866716C

公开(公告)日：2018-09-11

申请号：CA2866716

申请日：2013-03-08

Applicant: INVACARE CORP

Inventor： RICHEY JOSEPH B ,  DANIELS WILLIAM J

IPC: B01D53/047 ,  A61M16/10 ,  C01B13/02 ,  C01B21/04

Abstract: Systems and methods for producing a product gas are provided. In one embodiment, a system includes at least one separation bed to separate adsorbable components from a gas source, a valving means to selectively direct gas from the gas source to the at least one separation bed, at least one sensing device associated with the at least one separation bed to sense the progress of an adsorption zone within the separation bed, and a controller. The controller includes logic to read the output of the at least one sensing device and control the gas separation process based on the progress of the adsorption zone.

公开(公告)号：DE60231680D1

公开(公告)日：2009-05-07

申请号：DE60231680

申请日：2002-01-30

Applicant: INVACARE CORP

Inventor： RICHEY JOSEPH B ,  WAKEFIELD THEODORE D

IPC: B60L15/20 ,  A61G5/04 ,  B60L3/00

Abstract: A motorized wheelchair is advantageously provided with a rate-of-turn feedback sensor and with forward/reverse motion, lateral motion, and vertical motion acceleration feedback sensors that are integrated into a closed-loop wheelchair servo control system to differentially control the rotational speed of wheelchair opposed motor-driven wheels and thereby obtain improved wheelchair motion stability through reduction/elimination of likely wheelchair spin-out and wheelchair tipping during wheelchair operation.

公开(公告)号：CA2696773A1

公开(公告)日：2009-02-26

申请号：CA2696773

申请日：2008-08-25

Applicant: INVACARE CORP

Inventor： RICHEY JOSEPH B ,  STROTHMANN THOMAS

IPC: A61M16/00 ,  A61B5/08

Abstract: Systems and methods for adjusting a desired pressure in a positive airway pressure (PAP) device are provided. In one embodiment, the method includes: a) providing breathing gas under positive pressure to a patient via a PAP device based on current desired pressure, b) monitoring a characteristic of the breathing gas, patient, or PAP device indicative of respiration, c) creating a breathing cycle signal having a first level associated with inhalation and a second level associated with exhalation, the signal being based on the monitored respiration characteristic, d) performing an abnormal breathing check based on the monitored respiration characteristic and the breathing cycle signal, and e) if abnormal breathing is detected, increasing the current desired pressure until a maximum desired pressure is reached, otherwise, decreasing the current desired pressure until a minimum desired pressure is reached. Several embodiments of an apparatus associated with the method are also provided.

公开(公告)号：CA2437708A1

公开(公告)日：2002-08-15

申请号：CA2437708

申请日：2002-02-06

Applicant: INVACARE CORP

Inventor： RICHEY JOSEPH B

IPC: B60L11/00 ,  B60K1/02

Abstract: A nelectric vehicle driving system includes a power source (102), a voltage convertor (104), a control system (106) and one or more motors (110,112) for driving or propelling the vehicle. The voltage convertor is configured to accept an input voltage from the power source and generate an output voltage different from the input voltage. A switch (120) is provided to switch the delivery of power to the control system between the output of the power source and the output of the voltage convertor.

公开(公告)号：DE69311279T2

公开(公告)日：1997-11-20

申请号：DE69311279

申请日：1993-08-13

Applicant: INVACARE CORP

Inventor： RICHEY JOSEPH B

IPC: A61G5/04 ,  A61G5/08

Abstract: Provided is a powered wheelchair (A) having the drive motors (60) mounted to the driven wheels (44). The wheelchair includes a seat (B) and first and second side frames (16) extending in a parallel relationship to support opposite sides of the seat. First and second driven wheels (44) are rotatably mounted on the first and second side frames through a fixed axle shaft (92). First and second drive motors (60) are fixedly mounted on the first and second driven wheels (14), respectively, and are operatively connected by first and second drives (80, 84, 88) to the first and second driven wheels, respectively. Rotation of the first and second drive motors causes rotation of the driven wheels. Control of the motors is provided by a remote control arrangement, the transmitter (100) being mounted to one of the side frames and the receiver (106) being mounted on the rotatably mounted wheels.

公开(公告)号：DE69311279D1

公开(公告)日：1997-07-10

申请号：DE69311279

申请日：1993-08-13

Applicant: INVACARE CORP

Inventor： RICHEY JOSEPH B

IPC: A61G5/04 ,  A61G5/08

Abstract: Provided is a powered wheelchair (A) having the drive motors (60) mounted to the driven wheels (44). The wheelchair includes a seat (B) and first and second side frames (16) extending in a parallel relationship to support opposite sides of the seat. First and second driven wheels (44) are rotatably mounted on the first and second side frames through a fixed axle shaft (92). First and second drive motors (60) are fixedly mounted on the first and second driven wheels (14), respectively, and are operatively connected by first and second drives (80, 84, 88) to the first and second driven wheels, respectively. Rotation of the first and second drive motors causes rotation of the driven wheels. Control of the motors is provided by a remote control arrangement, the transmitter (100) being mounted to one of the side frames and the receiver (106) being mounted on the rotatably mounted wheels.