JAMES CHANG, BCBA
Behavior Analysts at Palomar Airport Rd, Carlsbad, CA
License number
California 11519544
Category
Behavior Analysts
Type
Behavior Analyst
Address
Address
2111 Palomar Airport Rd STE 322, Carlsbad, CA 92011
Phone
(760) 438-0078
Professional information
Addressable Multi-Channel Peristaltic Pump
US Patent:
7942654, May 17, 2011
Filed:
Aug 3, 2007
Appl. No.:
11/833493
Inventors:
James Chang - Carlsbad CA, US
Assignee:
Agilent Technologies, Inc. - Santa Clara CA
International Classification:
F04B 43/08, F04B 43/12, F04B 45/06
US Classification:
417474, 417223, 417429, 417475, 4174771, 417216
Abstract:
The present invention provides an addressable multi-channel peristaltic pump. According to the invention, this pump design allows for selection and operation of one or more pump heads on a drive shaft, while locking other non-selected pump heads in a stationary position. It is possible to operate the multi-channel pump using a limited number of motors, preferably two motors: a selector motor and a dispense motor. Thus, the pump provides for pumping or dispensing of one or more fluids without the need for multiple pumps. Likewise, compared with typical single motor multi-channel systems, where all pump heads on the drive shaft must rotate at the same time, the present invention provides for selective dispensing of one or more fluids. The pumps of the present invention are suitable for any multiple fluid transfer application, including in automated multi-channel reagent dispensing systems, such as nucleic acid purification systems.
System For Isolating Biomolecules From A Sample
US Patent:
2008015, Jun 26, 2008
Filed:
Dec 19, 2007
Appl. No.:
11/959587
Inventors:
Jeffrey C. BRAMAN - Carlsbad CA, US
Lee Scott Basehore - Lakeside CA, US
Natalia Novoradovskaya - San Diego CA, US
James Chang - Carlsbad CA, US
Lee Scott Basehore - Lakeside CA, US
Natalia Novoradovskaya - San Diego CA, US
James Chang - Carlsbad CA, US
International Classification:
A01N 1/02, C12M 1/00
US Classification:
435 2, 4353061
Abstract:
The present invention provides an automated system for purification of a substance of interest. The system generally comprises an instrument for moving fluids through the system, a reagent pack for storing fluids, and a purification cartridge. The cartridge comprises two filtration units for binding substances based on different physical properties. The cartridge also comprises rotary valves for control of movement of fluids on the cartridge. In preferred embodiments, the system is useful for purifying RNA from blood samples.