公开(公告)号：US08167317B2

公开(公告)日：2012-05-01

申请号：US12803188

申请日：2010-06-21

Applicant: Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

Inventor： Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

IPC: A61G5/06 ,  B62B5/02

CPC classification number: A61G5/068 ,  A61G5/066 ,  A61G5/1051 ,  A61G5/1054 ,  A61G5/1078 ,  Y10S280/10 ,  Y10T74/11

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a front caster wheel slider assembly on each side of the wheelchair, a follower wheel assembly and a track belt damping bar. The front caster wheel slider assembly includes a piston that will quickly push the front caster wheels down after they roll over the top edge of the curb. The follower wheel assembly acts as a sensor that will release the piston in the assembly after the front caster wheels roll over the top edge of the curb. As the back wheels of the wheelchair roll over and down the curb, the track belt damping bar slows the descent of the wheelchair.

Abstract translation: 提供手动轮椅的附件，用于将轮椅导航在障碍物和不平坦的地形上，例如街上典型的路边。 附件用于在轮椅下降路边时调节轮椅的运动，并防止轮椅在这种运动过程中翻转。 附件包括在轮椅的每一侧的前脚轮滑块组件，从动轮组件和轨道带阻尼杆。 前脚轮滑块组件包括活塞，该活塞在它们滚过路缘石的顶部边缘之后将快速推动前脚轮。 从动轮组件用作传感器，该传感器将在前脚轮旋转到路缘石的顶部边缘之后释放组件中的活塞。 当轮椅的后轮上下滚动时，轨道带阻尼杆减慢了轮椅的下降。

公开(公告)号：US5189490A

公开(公告)日：1993-02-23

申请号：US767222

申请日：1991-09-27

Applicant: Devdas Shetty ,  Henry Neault

Inventor： Devdas Shetty ,  Henry Neault

IPC: G01B11/30

CPC classification number: G01B11/303

Abstract: A non-contact visual system for analyzing surface roughness directs onto the surface of a workpiece a laser beam which is reflected from the surface with a diffraction pattern. The image of the reflected diffraction pattern is captured on a mirror and reflected onto a display screen, and this displayed image is converted into analog signals which, in turn, are converted into digital data. The intensity of the captured image is determined from the digital data, and the data on the determined intensity of the captured image are compared with data on intensity from calibrated standards of surface roughness. From this comparison, the surface roughness of the workpiece is determined. The preferred technique uses a rasterizing graphics adapter for converting the output of a video camera into the digital signals and only pixels above a predetermined brightness value are utilized.

Abstract translation: 用于分析表面粗糙度的非接触视觉系统将衍射图案从表面反射的激光束引导到工件的表面上。 反射的衍射图案的图像被捕获在反射镜上并被反射到显示屏上，并将该显示的图像转换成模拟信号，这又被转换为数字数据。 从数字数据确定拍摄图像的强度，并将所确定的拍摄图像强度的数据与来自校准的表面粗糙度标准的强度数据进行比较。 根据该比较，确定工件的表面粗糙度。 优选的技术使用光栅图形适配器将摄像机的输出转换为数字信号，并且仅使用高于预定亮度值的像素。

公开(公告)号：US10775058B2

公开(公告)日：2020-09-15

申请号：US16059912

申请日：2018-08-09

Applicant: Pawan Tyagi ,  Devdas Shetty

Inventor： Pawan Tyagi ,  Devdas Shetty

IPC: F24F5/00 ,  F24S10/30 ,  F24S20/66

Abstract: A pumpless solar energy-based air heater includes a body housing a chamber surrounded by a heat conducting medium; an intake pipe to draw cool air into the chamber; and one or more exit pipes to push warm air out from the chamber, the one or more exit pipes having one or more structures within the interior of the one or more exit pipes to create a low friction factor for the air flowing upwards in the exit pipe while creating a high friction factor for the air attempting to move downward, thereby ensuring air flow in an upward direction; a pressure difference is created between an entry point of the intake pipe and an end point of the one or more exit pipes, thereby eliminating the need for a pump or a fan.

公开(公告)号：US20200049356A1

公开(公告)日：2020-02-13

申请号：US16059912

申请日：2018-08-09

Applicant: Pawan Tyagi ,  Devdas Shetty

Inventor： Pawan Tyagi ,  Devdas Shetty

IPC: F24F5/00 ,  F24S10/30 ,  F24S20/66

Abstract: A pumpless solar energy-based air heater includes a body housing a chamber surrounded by a heat conducting medium; an intake pipe to draw cool air into the chamber; and one or more exit pipes to push warm air out from the chamber, the one or more exit pipes having one or more structures within the interior of the one or more exit pipes to create a low friction factor for the air flowing upwards in the exit pipe while creating a high friction factor for the air attempting to move downward, thereby ensuring air flow in an upward direction; a pressure difference is created between an entry point of the intake pipe and an end point of the one or more exit pipes, thereby eliminating the need for a pump or a fan.

公开(公告)号：US07766342B2

公开(公告)日：2010-08-03

申请号：US11697934

申请日：2007-04-09

Applicant: Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

Inventor： Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

IPC: A61G5/06 ,  B62B5/02

CPC classification number: A61G5/068 ,  A61G5/066 ,  A61G5/1051 ,  A61G5/1054 ,  A61G5/1078 ,  Y10S280/10 ,  Y10T74/11

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a front caster wheel slider assembly on each side of the wheelchair, a follower wheel assembly and a track belt damping bar. The front caster wheel slider assembly includes a piston that will quickly push the front caster wheels down after they roll over the top edge of the curb. The follower wheel assembly acts as a sensor that will release the piston in the assembly after the front caster wheels roll over the top edge of the curb. As the back wheels of the wheelchair roll over and down the curb, the track belt damping bar slows the descent of the wheelchair.

Abstract translation: 提供手动轮椅的附件，用于将轮椅导航在障碍物和不平坦的地形上，例如街上典型的路边。 附件用于在轮椅下降路边时调节轮椅的运动，并防止轮椅在这种运动过程中翻转。 附件包括在轮椅的每一侧的前脚轮滑块组件，从动轮组件和轨道带阻尼杆。 前脚轮滑块组件包括活塞，该活塞在它们滚过路缘石的顶部边缘之后将快速推动前脚轮。 从动轮组件用作传感器，该传感器将在前脚轮旋转到路缘石的顶部边缘之后释放组件中的活塞。 当轮椅的后轮上下滚动时，轨道带阻尼杆减慢了轮椅的下降。

公开(公告)号：US07462138B2

公开(公告)日：2008-12-09

申请号：US11173197

申请日：2005-07-01

Applicant: Devdas Shetty ,  Avital Fast ,  Claudio Campana

Inventor： Devdas Shetty ,  Avital Fast ,  Claudio Campana

IPC: A63B22/00

CPC classification number: A61H3/008 ,  A61H2201/1215 ,  A61H2201/1472 ,  A61H2201/1616 ,  A61H2201/1621 ,  A61H2201/163 ,  A61H2201/1652 ,  A61H2201/1666 ,  A61H2201/5007 ,  A61H2201/5061 ,  A61H2201/5069

Abstract: An ambulatory suspension system for gait rehabilitation has a parallel pair of rails bordering the sides of a training area and a bridge extending between and movable along the rails. A trolley is movable along the bridge and includes a motor driven hoist with a cable extending thereabout and depending from the trolley. The hoist is operable to vary the length of the cable depending from the trolley, and a harness is suspended by the cable. Motors move the bridge along the rails and the trolley along the bridge as the sensors sense the direction of movement of the patient in X and Y directions. The falling motion of a patient supported in the harness is sensed and will immediately disable the system. A computer control receives signals from the sensors and operates the motors so that the patient is held in an upright position.

Abstract translation: 用于步态恢复的步行悬挂系统具有与训练区域的边缘相邻的平行的轨道，以及在轨道之间延伸并可移动的桥梁。 手推车可沿着桥梁移动，并且包括电动机驱动的起重机，其电缆在其周围延伸并且与手推车不一致。 起重机可操作以根据手推车改变电缆的长度，并且线束被电缆悬挂。 当传感器感测到患者在X和Y方向上的移动方向时，电机沿桥梁沿轨道和手推车移动桥梁。 支撑在线束中的患者的下降动作被感测并将立即禁用系统。 计算机控制器从传感器接收信号并操作电动机，使患者保持在直立位置。

公开(公告)号：US09050230B2

公开(公告)日：2015-06-09

申请号：US13425091

申请日：2012-03-20

Applicant: Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

Inventor： Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

IPC: B62B5/02 ,  A61G5/06 ,  A61G5/10

CPC classification number: A61G5/068 ,  A61G5/066 ,  A61G5/1051 ,  A61G5/1054 ,  A61G5/1078 ,  Y10S280/10 ,  Y10T74/11

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a belt support frame, at least two rollers mounted on the belt support frame and a belt mounted around the at least two rollers. The belt support frame is adapted for mounting on the frame of the wheelchair such that as the wheelchair descends from the upper surface to the lower surface, the belt engages an edge of the upper surface and rolls around the at least two rollers slowing a descent of the wheelchair from the upper surface to the lower surface.

Abstract translation: 提供手动轮椅的附件，用于将轮椅导航在障碍物和不平坦的地形上，例如街上典型的路边。 附件用于在轮椅下降路边时调节轮椅的运动，并防止轮椅在这种运动过程中翻转。 附件包括皮带支撑框架，安装在皮带支撑框架上的至少两个滚轮和围绕至少两个滚轮安装的皮带。 带支撑框架适于安装在轮椅的框架上，使得当轮椅从上表面下降到下表面时，带与上表面的边缘接合并且绕至少两个辊滚动以减慢 轮椅从上表面到下表面。

公开(公告)号：US20120175850A1

公开(公告)日：2012-07-12

申请号：US13425091

申请日：2012-03-20

Applicant: Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

Inventor： Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

IPC: B62B5/02

CPC classification number: A61G5/068 ,  A61G5/066 ,  A61G5/1051 ,  A61G5/1054 ,  A61G5/1078 ,  Y10S280/10 ,  Y10T74/11

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a belt support frame, at least two rollers mounted on the belt support frame and a belt mounted around the at least two rollers. The belt support frame is adapted for mounting on the frame of the wheelchair such that as the wheelchair descends from the upper surface to the lower surface, the belt engages an edge of the upper surface and rolls around the at least two rollers slowing a descent of the wheelchair from the upper surface to the lower surface.

Abstract translation: 提供手动轮椅的附件，用于将轮椅导航在障碍物和不平坦的地形上，例如街上典型的路边。 附件用于在轮椅下降路边时调节轮椅的运动，并防止轮椅在这种运动过程中翻转。 附件包括皮带支撑框架，安装在皮带支撑框架上的至少两个滚轮和围绕至少两个滚轮安装的皮带。 带支撑框架适于安装在轮椅的框架上，使得当轮椅从上表面下降到下表面时，带与上表面的边缘接合并且绕至少两个辊滚动以减慢 轮椅从上表面到下表面。

公开(公告)号：US20100259029A1

公开(公告)日：2010-10-14

申请号：US12803188

申请日：2010-06-21

Applicant: Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

Inventor： Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

IPC: A61G5/10

CPC classification number: A61G5/068 ,  A61G5/066 ,  A61G5/1051 ,  A61G5/1054 ,  A61G5/1078 ,  Y10S280/10 ,  Y10T74/11

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a front caster wheel slider assembly on each side of the wheelchair, a follower wheel assembly and a track belt damping bar. The front caster wheel slider assembly includes a piston that will quickly push the front caster wheels down after they roll over the top edge of the curb. The follower wheel assembly acts as a sensor that will release the piston in the assembly after the front caster wheels roll over the top edge of the curb. As the back wheels of the wheelchair roll over and down the curb, the track belt damping bar slows the descent of the wheelchair

Abstract translation: 提供手动轮椅的附件，用于将轮椅导航在障碍物和不平坦的地形上，例如街上典型的路边。 附件用于在轮椅下降路边时调节轮椅的运动，并防止轮椅在这种运动过程中翻转。 附件包括在轮椅的每一侧的前脚轮滑块组件，从动轮组件和轨道带阻尼杆。 前脚轮滑块组件包括活塞，该活塞在它们滚过路缘石的顶部边缘之后将快速推动前脚轮。 从动轮组件用作传感器，该传感器将在前脚轮旋转到路缘石的顶部边缘之后释放组件中的活塞。 当轮椅的后轮上下滚动时，轨道带阻尼杆减慢了轮椅的下降

公开(公告)号：US20080246251A1

公开(公告)日：2008-10-09

申请号：US11697934

申请日：2007-04-09

Applicant: Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

Inventor： Avital Fast ,  Devdas Shetty ,  Moshe Raz ,  Giora Rothman

IPC: A61G5/10

CPC classification number: A61G5/068 ,  A61G5/066 ,  A61G5/1051 ,  A61G5/1054 ,  A61G5/1078 ,  Y10S280/10 ,  Y10T74/11

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a front caster wheel slider assembly on each side of the wheelchair, a follower wheel assembly and a track belt damping bar. The front caster wheel slider assembly includes a piston that will quickly push the front caster wheels down after they roll over the top edge of the curb. The follower wheel assembly acts a sensor that will release the piston in the assembly after the front caster wheels roll over the top edge of the curb. As the back wheels of the wheelchair roll over and down the curb, the track belt damping bar slows the descent of the wheelchair.

Abstract translation: 提供手动轮椅的附件，用于将轮椅导航在障碍物和不平坦的地形上，例如街上典型的路边。 附件用于在轮椅下降路边时调节轮椅的运动，并防止轮椅在这种运动过程中翻转。 附件包括在轮椅的每一侧的前脚轮滑块组件，从动轮组件和轨道带阻尼杆。 前脚轮滑块组件包括活塞，该活塞在它们滚过路缘石的顶部边缘之后将快速推动前脚轮。 从动轮组件作用一个传感器，在前轮脚轮滚过路缘石的顶部边缘之后，传感器将释放组件中的活塞。 当轮椅的后轮上下滚动时，轨道带阻尼杆减慢了轮椅的下降。