Patents by Inventor Christopher J. Wojnar

Christopher J. Wojnar 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: 8745897
    Abstract: Traction enhancing devices for footwear assemblies are disclosed herein. In one embodiment, a footwear assembly includes a footwear product with an outsole that has one or more embedded traction enhancing devices. Each traction enhancing device can be a stud that is at least partially embedded in the carrier portion of the outsole and that partially projects from the carrier portion. Each stud can be configured to reduce or eliminate relative movement between the stud and the carrier portion to prevent the stud from loosening or falling out. For example, each stud can include a shaft having an engaging surface, such as a threaded, ribbed, or textured surface, that engages the carrier portion. Each stud can also include a portion having an enlarged surface area, such as an anchor or head, embedded in the carrier portion to improve retention of the stud in the carrier portion.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: June 10, 2014
    Assignee: LaCrosse Footwear, Inc.
    Inventors: Christopher J. Wojnar, Casey R. Rakoczy, Aaron Barker
  • Publication number: 20120317840
    Abstract: A footwear assembly having a dual density outsole with lugs and non-retractable studs in the lugs. Peripheral lugs are spaced apart from the outsole's longitudinal axis and central lugs are disposed adjacent to the longitudinal axis between the peripheral lugs. The peripheral lugs are taller than the central lugs and are made of a denser rubber. The studs embedded in the lugs with a shaft and tip portion exposed. The peripheral lugs having recessed flex grooves circular recesses coaxially aligned with the studs.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 20, 2012
    Applicant: LaCrosse Footwear, Inc.
    Inventors: Christopher J. Wojnar, Paul W. Brabson, Aaron Barker
  • Publication number: 20120304495
    Abstract: Footwear assemblies with a light weight sole assembly securely attached to an upper and associated methods are described herein. In one embodiment, a footwear assembly includes an upper connected to a light weight sole assembly, wherein the sole assembly has a durable outsole securely attached to a lightweight midsole, and a lightweight cradle style chassis is attached to the midsole. The chassis has a body and sidewalls extending upwardly from the lateral and medial side portions of the body to define a concave structure that receives a portion of the upper therein. At least a portion of the upper is cemented to the chassis, and edge portions of the upper are stitched to the sidewalls of the chassis.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 6, 2012
    Applicant: Danner, Inc.
    Inventors: Paul W. Brabson, John W. Ludermann, Christopher J. Wojnar, Aaron Barker
  • Publication number: 20110192054
    Abstract: Traction enhancing devices for footwear assemblies are disclosed herein. In one embodiment, a footwear assembly includes a footwear product with an outsole that has one or more embedded traction enhancing devices. Each traction enhancing device can be a stud that is at least partially embedded in the carrier portion of the outsole and that partially projects from the carrier portion. Each stud can be configured to reduce or eliminate relative movement between the stud and the carrier portion to prevent the stud from loosening or falling out. For example, each stud can include a shaft having an engaging surface, such as a threaded, ribbed, or textured surface, that engages the carrier portion. Each stud can also include a portion having an enlarged surface area, such as an anchor or head, embedded in the carrier portion to improve retention of the stud in the carrier portion.
    Type: Application
    Filed: December 7, 2010
    Publication date: August 11, 2011
    Inventors: Christopher J. Wojnar, Casey R. Rakoczy, Aaron Barker
  • Publication number: 20100175280
    Abstract: Footwear assemblies including removable enhanced traction devices are disclosed herein. In one embodiment, a footwear assembly includes a footwear product with an outsole that removably receives a traction enhancing device. The outsole includes a tread pattern having a plurality of channels corresponding to portions of the traction device. The traction device includes multiple webs or straps that carry studs or other types of protrusions for improved traction. When a user attaches the traction device to the footwear product, the channels in the outsole removably receive the corresponding webs, thereby positioning the protrusions to extend away from the outsole. The outsole can also include one or more channels extending around one or more peripheral portions of the footwear product (e.g., around the side, back and/or front) to receive corresponding portions of the traction device and retain the traction device on the footwear product.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 15, 2010
    Inventors: Robert G. Rinehart, JR., Casey R. Rakoczy, John W. Ludemann, Christopher J. Wojnar