Invention Grant
US09562358B2 Adjustable staircase and height-adjustable platform with adjustable staircase
有权
可调节楼梯和高度可调的平台，可调节楼梯
- Patent Title: Adjustable staircase and height-adjustable platform with adjustable staircase
- Patent Title (中): 可调节楼梯和高度可调的平台，可调节楼梯
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Application No.: US14605655Application Date: 2015-01-26
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Publication No.: US09562358B2Publication Date: 2017-02-07
- Inventor: John Stephen Lanphear
- Applicant: John Stephen Lanphear
- Applicant Address: US MI Lawrence
- Assignee: John Stephen Lanphear
- Current Assignee: John Stephen Lanphear
- Current Assignee Address: US MI Lawrence
- Agency: Diederiks & Whitelaw, PLC
- Main IPC: E04F11/00
- IPC: E04F11/00 ; E04F19/00 ; E04F11/06 ; E04G1/18 ; E04G1/28 ; E04G5/10 ; E04G5/14 ; E04G27/00 ; E06C1/39 ; E04G13/06 ; E04F11/025 ; E04F11/18
Abstract:
An adjustable staircase includes an upper stair, a lower stair, a first bar and a second bar. The vertical distance between the upper stair and the lower stair is adjustable. Also, each bar is coupled to each of the upper and lower stairs, and the first bar is configured to function as a guard. As a result, the first bar blocks a pinch point between the first and second bars.
Public/Granted literature
- US20150211234A1 Adjustable Staircase and Height-Adjustable Platform with Adjustable Staircase Public/Granted day:2015-07-30
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