Philip Stephen Petersen

US Patent:

54216931, Jun 6, 1995

Filed:

Jan 5, 1994

Appl. No.:

8/177560

Inventors:

Philip L. Petersen - Glendora CA

International Classification:

A61G 710

US Classification:

414678

Abstract:

A new and improved wheelchair tilting apparatus includes a base assembly and a wheelchair receiving assembly supported by the base assembly. The wheelchair receiving assembly includes a first platform portion and a first frame assembly supporting the first platform portion. The wheelchair receiving assembly also includes a second platform portion and a second frame assembly supporting the second platform portion. The first and second frame assemblies are connected to each other and oriented with respect to each other at a predetermined obtuse angle, such that the first and second platform portions are oriented with respect to each other at the predetermined obtuse angle. A tilt assembly is supported by the base assembly and is provided for tilting the wheelchair receiving assembly after a wheelchair is received in the wheelchair receiving assembly. The tilt assembly includes an electric motor and a gear assembly that is connected to the wheelchair receiving assembly, such that the tilt assembly controls a tilt angle of the wheelchair receiving assembly and the wheelchair supported thereon. Wheel assemblies are connected to bottom portions of the base assembly.

US Patent:

20190062366, Feb 28, 2019

Filed:

Aug 30, 2018

Appl. No.:

16/118425

Inventors:

- Pasadena CA, US
Philip F. Petersen - Covina CA, US
Lulu Qian - La Crescenta CA, US

International Classification:

C07H 21/04
B81B 1/00
B81C 1/00

Abstract:

Compositions and methods of the present disclosure provide for staged assembly of nucleic acid microstructures made of an array of x number of polynucleotide tiles, where each of the polynucleotide tiles is a polygon configuration and is made from a single-stranded helical polynucleotide scaffold and a plurality of single-stranded polynucleotide staple strands of y number of unique staple sequences corresponding to the selected tile configuration, the y number of unique staple sequences capable of being constant for any value of x.

Address:

PO Box 24, Knightsen, CA 94548

Phone:

9256844430

VIN:

JTDKN3DU7A0152979

Make:

TOYOTA

Model:

PRIUS

Year:

2010