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This patent covers a new way to install door frames without using traditional wooden shims. Instead of hammering shims into gaps, installers use threaded devices that can be precisely adjusted to level and square the door frame. This makes door installation faster, more accurate, and allows for future adjustments if needed.
This patent describes an innovative doorframe fastening system that eliminates the need for traditional shims during door installation. The device comprises an insert with a threaded tube and flange that fits into complementary voids in the doorframe, along with adjustable set screws that can be extended to contact the door opening framework. This allows for precise leveling, plumbing, and squaring of doorframes without the time-consuming shimming process. The commercial applications are significant in the construction and door installation industries. The system dramatically reduces installation time and improves precision compared to traditional shimming methods. The device can be pre-installed by doorframe manufacturers or retrofitted by installers, making it valuable for both new construction and renovation projects. The adjustability feature also allows for easy corrections if the framework shifts over time, providing long-term value.
A doorframe fastening device with an insert comprising a threaded tube and radial flange for insertion into complementary voids in doorframes
A nut system that threads onto the tube to securely attach the insert to the doorframe
An adjustable set screw that extends from the tube to contact the door opening framework for precise positioning
A channel through the set screw that allows mounting screws to permanently attach the doorframe to the framework
A method of doorframe installation that eliminates traditional shimming by using multiple fastening devices for leveling and squaring
A system where the first section of the channel is shaped to accept rotary tool bits for easy adjustment
Pre-installable inserts that can be factory-installed in doorframes by manufacturers
View the detailed presentation for this patent.
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