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公开(公告)号:US20170355578A1
公开(公告)日:2017-12-14
申请号:US15181907
申请日:2016-06-14
申请人: David R. Hall , Jackson Priddis , Andrew Priddis , Eimi Priddis
发明人: David R. Hall , Jackson Priddis , Andrew Priddis , Eimi Priddis
IPC分类号: B66F3/02
摘要: The invention is a rack and chain lifting device. The purpose is to convert rotational motion to linear motion in a way that is superior to a rack and pinion device because, first, it allows for more points of contact with the rack through the use of a silent chain in place of a pinion, and, second, because it can be used in corners since the motor can be distanced from the rack by means of the silent chain. The invention comprises a silent chain with link plates that are shaped such that the teeth of the link plates are offset when the chain is straightened, allowing the profile of the silent chain to correspond with the profiles of both gears and racks. The invention also comprises a rack that can be placed in corners. Some embodiments include a system of gears, a motor, and a mounting platform.
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公开(公告)号:US20170369283A1
公开(公告)日:2017-12-28
申请号:US15194938
申请日:2016-06-28
申请人: David R. Hall , Jackson Priddis , Andrew Priddis , Eimi Priddis
发明人: David R. Hall , Jackson Priddis , Andrew Priddis , Eimi Priddis
CPC分类号: B66B9/022 , B66B5/16 , B66B13/303
摘要: The invention is an elevator. The elevator is driven by a rack and a chain. The elevator also comprises a transportable frame, a floor, and an elevator shaft. The purpose of the invention is, by using a rack and chain lifting device to drive the elevator, to allow the elevator to be driven from the bottom. Driving the elevator from the bottom makes the structural integrity of the elevator box unnecessary, so that the elevator box can be replaced with an elevator box façade and a fabric door, making the elevator lighter and more economical. In addition, the design of the elevator allows for adjacent doors, battery power, and voice control.
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公开(公告)号:US20170350472A1
公开(公告)日:2017-12-07
申请号:US15175488
申请日:2016-06-07
申请人: David R. Hall , Jackson Priddis , Andrew Priddis , Eimi Priddis
发明人: David R. Hall , Jackson Priddis , Andrew Priddis , Eimi Priddis
摘要: The invention is a silent chain with a profile capable of corresponding with the profiles of both sprockets and racks. The purpose of the invention is to convert rotational motion to linear motion in a way that is superior to the traditional rack and pinion device by allowing for more surface area contact with the rack through the use of, rather than a pinion, a silent chain that is capable of engaging with a rack. The invented silent chain comprises link plates of a particular shape stacked in alternating rows and joined together by connecting pins in such a way as to be bendable. The link plates are shaped such that the teeth of the link plates are offset when the chain is straightened, which allows the profile of the silent chain to correspond with the profiles of both sprockets and racks.
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