Liang Zhang

US Patent:

20110100369, May 5, 2011

Filed:

Apr 6, 2009

Appl. No.:

12/996823

Inventors:

Liang Zhang - Alexandria VA, US
Zhengping Zhang - Alexandria VA, US

International Classification:

A61M 16/00

US Classification:

12820611, 12820718

Abstract:

A nasal device (-) for obesity prevention and treatment and its method of use are disclosed. The device comprises a check valve () and a cylindrical or conical airtight tube () with an opening at each end. The valve is so fastened or connected to the tube at one end as to form a one-way air channel/passage. The tube conforms to or fits the interiors of different nostrils air-tightly in a variety of ways (). A pair of such devices can be connected with a flexible strip () or a band (). Inserting the device into the nostril, a wearer can inhale through the nose but has to exhale through the mouth. This reduces the wearer's appetite for food and slows down eating. The wearer can easily remove the device after eating or whenever desired.

US Patent:

20120055965, Mar 8, 2012

Filed:

May 8, 2010

Appl. No.:

13/320261

Inventors:

Zhengping Zhang - Alexandria VA, US
Xiaohua Liang - Alexandira VA, US
Liang Zhang - Alexandria VA, US

International Classification:

A45F 5/00
B65H 75/40
B65H 75/44
B65H 75/48

US Classification:

224269, 2423792

Abstract:

A personal portable devices keeper () and its method of use are disclosed. The keeper mainly comprises a housing formed by a shell () and a base (), a spool assembly () controlled by a spiral spring () and a ratchet mechanism consisting of a ratchet plate () in the spool, a ratchet bead (), and a straight slot () in the base, a clip (), and a length of cord () with a bob () securing a strap loop (). The shell has a cord port () and is rotatable independently from the spool so that the cord remainder is adjustable even after the cord is fully retracted by the spring. The strap loop ties a personal portable device directly through its strap holder or the like. The keeper is fully operable through the cord dragged by the portable device that is normally held and operated by one hand.