Polly Rothstein

US Patent:

7866677, Jan 11, 2011

Filed:

Oct 27, 2009

Appl. No.:

12/606371

Inventors:

Polly Rothstein - Purchase NY, US
Philip J. Margolis - Mamaroneck NY, US
Aaron Leith Margolis - Mamaroneck NY, US
Noah Adam Margolis - Mamaroneck NY, US

International Classification:

B62B 3/02
B62B 1/12
A61H 3/04

US Classification:

280 4734, 280639, 280646, 135 67

Abstract:

A rollator having a variable track width that can be adjusted across a range of widths for use in operation by pivoting a pair of support members, wherein the alignment of the wheels is maintained in the direction of travel during operation across the range of track widths.

US Patent:

20140265256, Sep 18, 2014

Filed:

Mar 12, 2013

Appl. No.:

13/795553

Inventors:

Polly Rothstein - Purchase NY, US
Chester Rothstein - Rye NY, US

International Classification:

B62B 7/06

US Classification:

280651

Abstract:

The invention generally relates to people movers fabricated from at least two frame assemblies pivotably connected, for example, in a v formation, wherein the forward end of each frame assembly is pivotably connected such that the rearward end of each frame assembly can be at a variable offset distance so the overall width of the people mover can be adjusted from a maximum (widest) overall width to a minimum (substantially narrow) overall width. Further, the frame assemblies can include forward wheel(s) and/or rearward wheel(s) that can roll in any direction and/or in a regulated range of directions such that when the people mover is at its maximum (widest) width the rearward wheels can only roll in a forward and/or inwardly direction and when the people mover is at its minimum (substantially narrow) width the rearward wheels can only roll in a substantially forward and/or substantially outwardly direction.