Cortex, LLC

Rodney Napier

Zachary P Beard

A magnetic doorstop and door holder provides an aesthetically pleasing, functionally simple, and effective solution to allow homeowners to closely control an amount of force needed to maintain a door in an open position. The system is designed to work with most doors, including traditional solid doors and hollow core doors. The system involves magnetic and/or ferromagnetic materials affixed to or embedded within various entryway components, including doors, door jambs, door frames, and door hinges, and within walls and/or flooring adjacent to the entryway. The system is designed to be highly customizable to fit each homeowner's particular needs and circumstances, and adjustable based on the type of door or entryway layout and based on the homeowner's desired strength of holding and precise positioning.

Magnetic door stop and door holder

A magnetic door closure apparatus includes a first magnet in a door frame and second and third magnets in a door. The second and third magnets align with the first magnet when the door is closed. The second magnet's polarity is the same as the first magnet, and the third magnet's polarity is opposite that of the first magnet. When the door is nearly closed, the distance between the first and second magnets is less than the distance between the first and third magnets. The magnetic attraction between the first and third magnets is large enough to overcome the magnetic repulsion between the first and second magnets so that the door can be closed and is large enough to hold the door closed, whereas the magnetic repulsion is large enough to prevent the door from slamming against the door frame as the door is closed.

Magnetic door closure

A magnetic closure bumper assembly is used in conjunction with a movable structure that engages a stationary structure. The magnetic bumper assembly includes a first closure bumper and a second closure bumper. The first closure bumper includes a first bumper casing in which a first magnet is disposed. The first bumper casing has a mounting surface configured for attachment to the movable structure and an engagement surface opposing the mounting surface. The second closure bumper includes a second bumper casing in which a second magnet is disposed. The second bumper casing has a mounting surface configured for attachment to the stationary structure and an engagement surface opposing the mounting surface. Magnetic attraction between the first and second magnets causes the first closure bumper to be attracted to the second closure bumper, thereby urging the engagement surface of the first bumper casing to removably contact the engagement surface of the second bumper casing as the movable structure is moved toward the stationary structure.

Magnetic closure bumpers

A retrofit window kit includes a plurality of magnetic sash elements configured to be positioned at one or more locations on an interior perimeter of the sash and a corresponding plurality of magnetic window grid elements each configured to magnetically couple to one of the magnetic sash elements and constructed as a clip or a cap that fits over and frictionally attaches to an exterior end of a window grid muntin.

Magnetic window attachments

A retrofit window kit, including a plurality of magnetic sash elements configured to be positioned at one or more locations on an interior perimeter of the sash; and a corresponding plurality of magnetic window grid elements each configured to magnetically couple to one of the magnetic sash elements and constructed as a clip or a cap sized to fit over and frictionally attach to an exterior end of a window grid muntin.

Growing community of inventors

Knoxville, TN, United States of America

Rodney Napier