Patents by Inventor Christian R. Ahrens

Christian R. Ahrens 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: 10366640
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 30, 2019
    Inventor: Christian R. Ahrens
  • Publication number: 20170193868
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 6, 2017
    Inventor: Christian R. Ahrens
  • Patent number: 9555507
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: January 31, 2017
    Inventor: Christian R. Ahrens
  • Publication number: 20150217784
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 6, 2015
    Inventor: Christian R. Ahrens
  • Patent number: 8960101
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: February 24, 2015
    Inventor: Christian R. Ahrens
  • Publication number: 20130206032
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 15, 2013
    Inventor: Christian R. Ahrens
  • Patent number: 8387542
    Abstract: A display system is easily attached to the safety bar of a chair on a chair lift system at the beginning of a season. The display system includes brackets formed of rails holding clamp portions that may be fastened together to clamp the display system to a chair, such as to the safety bar across the lap of a rider. At the end of a season, the display system may be removed from each chair, the clamp portions removed, and the display systems stacked. In one simplified system, adjacent displays may be stacked back to back, and such adjacent pairs may be stacked with the displays in adjacent pairs positioned face-to-face. Thus, metal brackets on the backs need not scratch up the reading faces or surfaces. Meanwhile, the displays may be stored in minimal space, with great stability, while minimizing wear and damage.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: March 5, 2013
    Inventor: Christian R Ahrens
  • Patent number: 5913432
    Abstract: A general purpose support system adaptable to a ski rack, bicycle rack, barricade, bench, table, advertising display, or the like, is formed of two tubular members, typically of steel tubing each bent in a single piece to form a leg portion at each end with an intermediate transverse portion therebetween. In service, at least one transverse portion may extend between the tops of the two respective leg portions. Each leg portion is attached to the opposite legs of the other tubular member. Two transverse members may be spaced apart from one another to form a yoke for carrying and to increase the capacity of the support for bicycles, skis and the like. The racks may be stackable for storage, and light enough to be moved to an inside storage location daily. Each leg portion is bent to form a knee portion located proximate the top thereof and near the transverse portion. The two tubular members may be anchored separately or may be joined at each end to be free-standing.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: June 22, 1999
    Inventor: Christian R. Ahrens
  • Patent number: 5472101
    Abstract: A ski security system includes a moveable rack for supporting pairs of skis when not it use. The rack is formed of two tubular members of galvanized steel tubing each bent in a single piece to form a leg portion at each end with an intermediate transverse portion therebetween. In service, each transverse portion extends between the tops of the two respective leg portions, which are themselves attached to the opposite two legs of the other tubular member. The transverse members are spaced apart from one another to form a yoke for carrying. The racks are stackable for storage, and light enough to be moved to an inside storage location daily. Each leg portion is bent to form a knee portion located proximate the top thereof and near the transverse portion. The two tubular members are joined at each end, being connected at the respective knee portion of each, the legs extending away therefrom upward and downward as well as outward.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: December 5, 1995
    Inventor: Christian R. Ahrens