Patents by Inventor Marc E. Christensen

Marc E. Christensen 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: 7275888
    Abstract: A stackable interlocking barrier system includes a first barrier having a front wall and a back wall each extending between a top wall and a floor, at least a portion of the front wall being sloped relative to the back wall. A second barrier also has a front wall and a back wall each extending between a top wall and a floor, at least a portion of the front wall being sloped relative to the back wall. The second barrier is inverted relative to the first barrier with the front wall of the second barrier seated against the front wall of the first barrier. A first connector is removably mounted on the first barrier and the second barrier so as to secure the first barrier to the second barrier.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: October 2, 2007
    Assignee: Off the Wall Products, LLC
    Inventors: Marc E. Christensen, Eric M. Simon, William L. Snook
  • Patent number: 6676113
    Abstract: A control barrier is provided having a barrier wall with one or two support assemblies attached thereto. The barrier wall has a front face with a display recess, wind ports, and tenons and mortises formed thereon. The barrier wall also has a set of projecting arms having either pins or ports to allow a series of control barriers to be connected together. The support assemblies are positionable between a support position and a standing position. Preferably, the support assemblies include a leg and a foot. The leg is extendable and/or rotatable to allow the foot to be positioned between a support position and a standing position.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: January 13, 2004
    Assignee: Off the Wall Products, LLC
    Inventors: Marc E. Christensen, Eric M. Simon
  • Publication number: 20020014619
    Abstract: A control barrier is provided having a barrier wall with one or two support assemblies attached thereto. The barrier wall has a front face with a display recess, wind ports, and tenons and mortises formed thereon. The barrier wall also has a set of projecting arms having either pins or ports to allow a series of control barriers to be connected together. The support assemblies are positionable between a support position and a standing position. Preferably, the support assemblies include a leg and a foot. The leg is extendable and/or rotatable to allow the foot to be positioned between a support position and a standing position.
    Type: Application
    Filed: October 4, 2001
    Publication date: February 7, 2002
    Applicant: Off the Wall Products, LLC
    Inventors: Marc E. Christensen, Eric M. Simon
  • Patent number: 6086285
    Abstract: A barrier system includes discrete movable barriers molded from a resiliently deformable plastic. Each of the barriers includes a housing having opposing front and back walls and opposing triangular shaped sidewalls. The front and back walls extend from a floor and intersect at a rounded top portion. Each barrier includes an interior surface that defines an internal chamber. The internal chamber can be selective filled with a ballast through an opening. Recessed within the front wall and back wall are a plurality of pockets. The pockets form reinforcing ribs which substantially prevent the deflection of front and back wall when the internal chamber is filled with ballast. In contrast, the sidewalls are substantially smooth to enhance bowing thereat when the internal chamber is filled with ballast. Recessed within the floor of each barrier adjacent to each of the sidewalls is a slot.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: July 11, 2000
    Assignee: Off the Wall Products, LLC
    Inventor: Marc E. Christensen
  • Patent number: 5993103
    Abstract: A control barrier is provided having a barrier wall with one or two support legs attached thereto. The barrier wall has a front face with a display recess formed therein and an internal cavity for selective filling with a ballast material. Each of the support legs are hingedly mounted to the back face of the barrier wall so as to selectively fold flat. Each support leg has an interior surface defining an internal chamber for selective filling with a ballast material.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: November 30, 1999
    Assignee: Off the Wall Products LLC
    Inventor: Marc E. Christensen
  • Patent number: 5836714
    Abstract: Portable control barriers for use in sporting or entertainment events having a lightweight housing formed of a resiliently deformable material. Each housing has an interior surface defining an internal chamber that can be selectively filled with a ballast. In one embodiment, the housing has opposing end walls, opposing sidewalls, and a substantially flat bottom wall. A spline and groove are each positioned on one of the opposing end walls. The spline and groove are configured to interlock adjacently positioned barriers. In yet another embodiment, a spout and receiving aperture are positioned on opposing end walls. In this embodiment, the spout of one barrier can be received in sealed fluid communication with the receiving port of an adjacent barrier, thereby allowing fluid communication of the ballast between adjacent barriers. Finally, in yet another embodiment, the bottom wall of the housing can be arched so as to form a passageway extending through the barrier.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: November 17, 1998
    Assignee: Off The Wall Production, Inc.
    Inventor: Marc E. Christensen
  • Patent number: 5611641
    Abstract: A portable crowd control barrier for use in sporting or entertainment events having lightweight body members formed of a resiliently deformable material and each defining an interior chamber and having slots formed in end walls thereof to receive wooden studs such that the introduction of liquid into the interior chambers deforms the body members, clamping the walls of the slots against the studs and locking the system in place.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: March 18, 1997
    Inventor: Marc E. Christensen
  • Patent number: 5452963
    Abstract: A portable crowd control barrier for use in sporting or entertainment events having lightweight body members formed of a resiliently deformable material and each defining an interior chamber and having slots formed in endwalls thereof to receive wooden studs such that the introduction of liquid into the interior chambers deforms the body members, clamping the walls of the slots against the studs and locking the system in place.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: September 26, 1995
    Inventor: Marc E. Christensen
  • Patent number: D533281
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: December 5, 2006
    Assignee: Off the Wall Products, LLC
    Inventors: Marc E. Christensen, Greg H. Brown, David E. Cowan, Bryan D. Grabowski, Charles M Mettler, Bruce E. Owens, Patricia Russell
  • Patent number: D546969
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: July 17, 2007
    Assignee: Off the Wall Products, LLC
    Inventor: Marc E. Christensen
  • Patent number: D552250
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: October 2, 2007
    Assignee: Off the Wall Products, LLC
    Inventors: Marc E. Christensen, Eric M. Simon, William Snook
  • Patent number: D555804
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: November 20, 2007
    Assignee: Off the Wall Products, LLC
    Inventor: Marc E. Christensen