Patents by Inventor James Alan Wachtel

James Alan Wachtel 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: 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
  • 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
  • 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
  • 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
  • Patent number: 3931380
    Abstract: Cups having a sidewall made from foam sheet plastic with a fusion sealed, lapped seam, wherein the lapped seam and the sidewall immediately adjacent the lapped seam are of identical thickness, are provided with additional rigidity per unit wall thickness by compressing the foam sheet either in-line with the foam extrusion operation or up to several months after extrusion. The cup is characterized by a substantial skin on only the outer surface of the sidewall.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: January 6, 1976
    Assignee: American Can Company
    Inventors: Ilie Mila Belivakici, Clifford Clayton Goehring, James Alan Wachtel, William Joseph Lahm, Carl Richard Storms