Patents by Inventor Kin-Chau Chan

Kin-Chau Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9757755
    Abstract: A masking strip for masking the interior surfaces of a gap between two substrates to be painted is provided, the strip comprising: a backing having a first surface and a second surface, the first surface having an adhesive region to fix the masking strip to an interior surface of the gap; a gap filler extending from the backing and adapted to prevent paint flow into the gap; wherein the first surface of the backing is also provided with a spacing means adapted to space the backing of the masking strip away from the interior surface of the gap to which the strip is fixed, and wherein the masking strip is pre-formed.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: September 12, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kin-Chau Chan, Kevin M. Eliason, Gary N. Brotherton, Colin D. Sinclair, Roy Stubbs, Jeffrey J. Schwab
  • Publication number: 20150306621
    Abstract: A masking strip for masking the interior surfaces of a gap between two substrates to be painted is provided, the strip comprising: a backing having a first surface and a second surface, the first surface having an adhesive region to fix the masking strip to an interior surface of the gap; a gap filler extending from the backing and adapted to prevent paint flow into the gap; wherein the first surface of the backing is also provided with a spacing means adapted to space the backing of the masking strip away from the interior surface of the gap to which the strip is fixed, and wherein the masking strip is pre-formed.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 29, 2015
    Inventors: Kin-Chau Chan, Kevin M. Eliason, Gary N. Brotherton, Colin D. Sinclair, Anna B. Baker, Roy Stubbs, Jeffrey J. Schwab
  • Publication number: 20150034006
    Abstract: A masking strip for masking the interior surfaces of a gap (8) between two substrates (2,3) to be painted is disclosed. The masking strip comprises a backing (10) having a first surface and a second surface. A gap filler (13) is also provided, extending from the backing (10) and adapted to prevent the flow of paint into the gap (8). The backing (10) is formed from, or attached to, a fibre—containing material that acts to wick paint away from the interior surface of the gap (8) to which the masking strip is fixed. Preferably the fibre—containing material is one of paper, tissue, a non-woven or a woven material.
    Type: Application
    Filed: December 21, 2011
    Publication date: February 5, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kin-Chau Chan, Anna B. Baker
  • Publication number: 20150030763
    Abstract: The present invention provides a colored masking liquid composition, and a method of masking a paint spray booth, wherein the composition comprises one or more polymers dispersed or dissolved in water, a base in a sufficient amount to provide a pH greater than 7, and a pH indicator that is colored at the pH of the masking liquid composition. Applying the colored masking liquid composition to the interior surface of a spray booth and allowing to dry results in a colorless mask.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 29, 2015
    Applicant: 3M Innovative Properties Company
    Inventors: Kin-Chau Chan, Gary N. Brotherton, Colin D. Sinclair, Jeffrey J. Schwab, Craig G. Appleby, Anna B. Baker
  • Publication number: 20140044864
    Abstract: The present application discloses a method of masking an interior surface of a spray booth, the method comprising: —providing a masking liquid comprising one or more polymers dispersed or dissolved in water, a base in amount sufficient to such that the pH of the masking liquid is more than 7 and a pH indicator that is colored at the pH of the masking liquid; —applying the masking liquid to at least part of an interior surface of the spray booth; —allowing the applied masking liquid to dry whereby upon drying the pH indicator becomes colorless or substantially colorless and a clear transparent or translucent white masking coating is obtained.
    Type: Application
    Filed: August 29, 2011
    Publication date: February 13, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Colin D. Sinclair, Gary N. Brotherton, Kin-Chau Chan, Jeffrey J. Schwab, Craig G. Appleby, Anna B. Baker