Patents by Inventor Mark D. Hildebrandt

Mark D. Hildebrandt 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).

  • Publication number: 20200061410
    Abstract: An exercise device includes a base, a first platform and a second platform. Both platforms move between a forward position and a rearward position along each own path relative to the base. The exercise device includes a flexible member operatively coupled with the first and second platforms. Furthermore, a resistance mechanism is coupled with the flexible member and configured to resist movement of at least one of the first platform and the second platform. The resistance mechanism includes a disc positioned parallel to the base and is configured to allow the disc to rotate relative to a vertical axis of the base. In addition, the flexible member is configured to allow the disc to rotate reciprocally in response to movement of the first platform or second platform.
    Type: Application
    Filed: March 14, 2018
    Publication date: February 27, 2020
    Inventors: Mark D. HILDEBRANDT, Daniel KOESTER
  • Publication number: 20160037250
    Abstract: A device for securing ear bud style headphones includes a main body and a pair of grommets coupled to the main body. The grommets include a flexible entry portion that defines an aperture through which a head portion of the headphones can be inserted into a cavity of the grommet. A cord portion of the head-phones can be wrapped around the main body and an end of the cord portion can be inserted into a slot.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 4, 2016
    Inventor: Mark D. HILDEBRANDT
  • Patent number: 9088081
    Abstract: A system for sealing a building electrical outlet of the type mounted within a wall surface of the building having one or more electrical plug sockets adapted to receive an electrical plug and a cover plate. The system includes two primary components. A gasket formed of an elastomeric material is provided with a pair of electrical terminal slots. A plug cover element forms a front cover panel and includes a pair of tabs extending from a back of the face surface to engage the electrical plug socket terminal slots. Two modes of operation are available. When an electrical plug is inserted into the electrical plug socket, the gasket is positioned between the plug and the socket to seal against air infiltration. When an electrical plug is not inserted into the socket, the plug cover is used to maintain the gasket in position for sealing against the electrical plug socket.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: July 21, 2015
    Assignee: SUNVENTRIX
    Inventor: Mark D. Hildebrandt
  • Publication number: 20130330965
    Abstract: A system for sealing a building electrical outlet of the type mounted within a wall surface of the building having one or more electrical plug sockets adapted to receive an electrical plug and a cover plate. The system includes two primary components. A gasket formed of an elastomeric material is provided with a pair of electrical terminal slots. A plug cover element forms a front cover panel and includes a pair of tabs extending from a back of the face surface to engage the electrical plug socket terminal slots. Two modes of operation are available. When an electrical plug is inserted into the electrical plug socket, the gasket is positioned between the plug and the socket to seal against air infiltration. When an electrical plug is not inserted into the socket, the plug cover is used to maintain the gasket in position for sealing against the electrical plug socket.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 12, 2013
    Inventor: Mark D. Hildebrandt
  • Patent number: 6666799
    Abstract: A recumbent apparatus for exercise and physical therapy providing a lower body workout, an upper body workout and cardiovascular conditioning, the apparatus comprising a frame having a forward end and a rearward end, the frame generally defining a longitudinal axis extending between the forward and rearward ends, a seat supported by the frame, a left leg assembly and a right leg assembly, the leg assemblies supported by the frame for pivoting movement about a pivot axis transverse to the longitudinal axis, the leg assemblies positioned generally toward the forward end and each including an upwardly extending leg lever terminating in a pedal, a left arm assembly and a right arm assembly, the arm assemblies supported by the frame for pivoting movement also about the pivot axis, the arm assemblies positioned generally toward the forward end and each including an upwardly extending arm lever terminating in a handle, the left leg assembly being connected to the right arm assembly enabling movement therewith and de
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: December 23, 2003
    Assignee: Nustep, Inc.
    Inventors: Mark D. Hildebrandt, Todd A. Sutton, Steve W. Sarns
  • Publication number: 20020151415
    Abstract: A recumbent apparatus for exercise and physical therapy providing a lower body workout, an upper body workout, and cardiovascular conditioning having an improved seat mechanism for mounting and dismounting the recumbent apparatus. The seat mechanism comprises a plurality of levers and pins that restrict seat motion in a longitudinal direction along the recumbent apparatus while permitting the rotation of the seat for mounting and dismounting.
    Type: Application
    Filed: February 19, 2002
    Publication date: October 17, 2002
    Inventors: Mark D. Hildebrandt, Todd A. Sutton, Steve W. Sarns
  • Patent number: 6361479
    Abstract: A recumbent apparatus for exercise and physical therapy providing a lower body workout, an upper body workout and cardiovascular conditioning, the apparatus comprising a frame having a forward end and a rearward end, the frame generally defining a longitudinal axis extending between the forward and rearward ends, a seat supported by the frame, a left leg assembly and a right leg assembly, the leg assemblies supported by the frame for pivoting movement about a pivot axis transverse to the longitudinal axis, the leg assemblies positioned generally toward the forward end and each including an upwardly extending leg lever terminating in a pedal, a left arm assembly and a right arm assembly, the arm assemblies supported by the frame for pivoting movement also about the pivot axis, the arm assemblies positioned generally toward the forward end and each including an upwardly extending arm lever terminating in a handle, the left leg assembly being connected to the right arm assembly enabling movement therewith and de
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: March 26, 2002
    Assignee: Nustep, Inc.
    Inventors: Mark D. Hildebrandt, Todd A. Sutton, Steve W. Sarns
  • Patent number: 6042518
    Abstract: A recumbent apparatus for exercise and physical therapy providing a lower body workout, an upper body workout and cardiovascular conditioning, the apparatus comprising a frame having a forward end and a rearward end, the frame generally defining a longitudinal axis extending between the forward and rearward ends, a seat supported by the frame, a left leg assembly and a right leg assembly, the leg assemblies supported by the frame for pivoting movement about a pivot axis transverse to the longitudinal axis, the leg assemblies positioned generally toward the forward end and each including an upwardly extending leg lever terminating in a pedal, a left arm assembly and a right arm assembly, the arm assemblies supported by the frame for pivoting movement also about the pivot axis, the arm assemblies positioned generally toward the forward end and each including an upwardly extending arm lever terminating in a handle, the left leg assembly being connected to the right arm assembly enabling movement therewith and de
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: March 28, 2000
    Assignee: NuStep, Inc.
    Inventors: Mark D. Hildebrandt, Todd A. Sutton, Steve W. Sarns
  • Patent number: 5356356
    Abstract: A recumbent exercise device which provides lower body, upper body and cardiovascular conditioning. The device includes a frame having a seat supported toward the rear thereof. A pair of leg assemblies and a pair of arm assemblies are pivotally supported by the frame for movement about a transverse pivot axis. The arm and leg assemblies are positioned generally toward the forward end of the frame and each includes an upward and forward extending lever with the leg assemblies terminating in pedals and the arm assemblies terminating in handles. The arm and leg assemblies are connected to each other for contralateral movement. A resistance mechanism is coupled to the arm and leg assemblies to provide resistance to their movement the pivot axis. An open area is defined above the frame between the seat and the arm and leg assemblies to permit step-through access to the seat regardless of the arm and leg assembly positions.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: October 18, 1994
    Assignee: Life Plus Incorporated
    Inventors: Mark D. Hildebrandt, Steven W. Sarns, Todd A. Sutton
  • Patent number: D320826
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: October 15, 1991
    Assignee: Life Plus, Inc.
    Inventors: Mark D. Hildebrandt, Richard N. Sarns, Miles A. Conklin
  • Patent number: D359777
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: June 27, 1995
    Assignee: LifePlus Incorporated
    Inventors: Mark D. Hildebrandt, James S. Phares
  • Patent number: D421075
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: February 22, 2000
    Assignee: NuStep, Inc.
    Inventors: Mark D. Hildebrandt, John M. Schmidt, Richard K. Gresens