Patents by Inventor Charles Edmund McChesney

Charles Edmund McChesney 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).

  • Method for making a blow molded oriented plastic bottle
    Patent number: 4044086
    Abstract: A molecularly oriented article having a tubular sidewall is blow-molded from a thermoplastic parison which is heat-treated prior to blowing to provide the parison sidewall with a temperature gradient wherein the temperature of the inside of the sidewall is greater than that of the outside, both of said temperatures being within the orientation temperature range of the thermoplastic. The temperature gradient results in the sidewall of the article having a different and more uniform circumferential orientation release stress distribution radially across the sidewall than would be obtained if the parison were blown isothermally.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: August 23, 1977
    Assignee: American Can Company
    Inventors: Charles Edmund McChesney, Robert J. McHenry, James Alan Wachtel
  • Blown thermoplastic bottle and method for making same
    Patent number: 3984498
    Abstract: A thermoplastic bottle has a unique combination of properties. The bottle is characterized by a very high level of molecular orientation, and possesses the properties of high impact strength, low gas permeability and excellent resistance to creep strain under tensile load. A blowing process for fabricating the bottle is also taught which features a means of substantially improving the resistance to creep strain.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: October 5, 1976
    Assignee: American Can Company
    Inventors: Charles Edmund McChesney, Robert J. McHenry, James Alan Wachtel
  • Blown thermoplastic bottle and method for making same
    Patent number: 3949038
    Abstract: A thermoplastic bottle having a unique combination of properties. The bottle is characterized by a very high level of molecular orientation, and possesses the properties of high impact strength, low gas permeability and excellent resistance to creep strain under tensile load. A blowing process for fabricating the bottle is also taught which features a means for substantially improving the resistance to creep strain.
    Type: Grant
    Filed: August 1, 1973
    Date of Patent: April 6, 1976
    Assignee: American Can Company
    Inventors: Charles Edmund McChesney, Robert J. McHenry, James Alan Wachtel
  • Blow molded, oriented plastic bottle and method for making same
    Patent number: 3934743
    Abstract: A molecularly oriented article having a tubular sidewall is blow-molded from a thermoplastic parison which is heat-treated prior to blowing to provide the parison sidewall with a temperature gradient wherein the temperature of the inside of the sidewall is greater than that of the outside, both of said temperature being within the orientation temperature range of the thermoplastic. The temperature gradient results in the sidewall of the article having a different and more uniform circumferential orientation release stress distribution radially across the sidewall than would be obtained if the parison were blown isothermally.
    Type: Grant
    Filed: December 29, 1972
    Date of Patent: January 27, 1976
    Assignee: American Can Company
    Inventors: Charles Edmund McChesney, Robert J. McHenry, James Alan Wachtel