US-20260129817-A1 - HARDROOM DOOR EDGE SEAL

US20260129817A1US 20260129817 A1US20260129817 A1US 20260129817A1US-20260129817-A1

Abstract

A pair of fabric EMI gaskets run in parallel and adhered onto a perimeter of a conductive ferrous hardroom door surface. A row of magnets running in between the pair of fabric EMI gaskets is magnetically adhered onto the perimeter of the door surface. A series of conductive non-ferrous spring clips are inserted between the pair of fabric EMI gaskets in at least corners of conductive ferrous hardroom door surface. A strip of felted wool is deployed above the non-ferrous spring clips and the row of magnets. A cam lever rotatably attached between the hardroom door pries open and breaks magnetic forces between the row of magnets and a conductive ferrous surface of a door frame.

Inventors

Jason R DeVries

Assignees

Faraday Defense Corporation

Dates

Publication Date: 20260507
Application Date: 20241104

Claims (20)

1 . An edge seal for a hardroom door in an electromagnetic shielded enclosure, the edge seal comprising: a pair of fabric EMI gaskets running in parallel and adhered onto a perimeter of a conductive ferrous hardroom door surface; and a row of magnets running in between the pair of fabric EMI gaskets magnetically adhered onto the perimeter of the conductive ferrous hardroom door surface.
2 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 1 , further comprising a strip of felted wool deployed on the row of magnets.
3 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 2 , wherein the felted wool is a ferrous material and the row of magnets holds the felted wool.
4 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 2 , wherein glue adheres the pair of fabric EMI gaskets onto the perimeter of the conductive ferrous hardroom door surface.
5 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 2 , further comprising conductive non-ferrous spring clips deployed between the pair of fabric EMI gaskets and between the strip felted wool and the row of magnets in at least corners of the conductive ferrous hardroom door surface.
6 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 5 , wherein each of the conductive non-ferrous spring clips are curved about 180 degrees to fit held between the row of magnets on a side and the conductive ferrous hardroom door surface and extend around with a spring to another, opposite side of the row of magnets.
7 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 1 , wherein the row of magnets create at least about 200 lbs. force needing special handle to open door with lever handle.
8 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 1 , wherein the edge seal for a hardroom door in an electromagnetic shielded enclosure further comprises a door frame comprising a conductive ferrous surface; and wherein the hardroom door comprises a row of magnets around a perimeter thereof and hinges coupling an edge of the hard room door to the door frame; and wherein the edge seal for a hardroom door in an electromagnetic shielded enclosure further comprises a lever rotatably attached between the hardroom door in a configuration to pry open and break magnetic forces between the row of magnets and the conductive ferrous surface of the door frame.
9 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 8 , wherein the lever is a cam lever.
10 . A hardroom door in an electromagnetic shielded enclosure according to claim 9 , wherein the lever has a handle end and an opposing forcing end, the handle end is longer than the forcing end, and wherein the lever is pivotably attached at a pivot point between the handle end and the forcing end to a side edge of the hardroom door.
11 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 10 , wherein the forcing end of the lever has a cam surface.
12 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 10 , wherein another lever has another handle end and an opposing another forcing end, the another handle end is longer than the another forcing end, and wherein the another lever is pivotably attached at another pivot point between the handle end and the forcing end to a outer edge of the door frame.
13 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 12 , wherein the forcing end of the lever has a cam surface; and wherein the another forcing end of the another lever has another cam surface.
14 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 8 , wherein another lever has another handle end and an opposing another forcing end, the another handle end is longer than the another forcing end, and wherein the another lever is pivotably attached at another pivot point between the handle end and the forcing end to a outer edge of the door frame.
15 . An edge seal for a hardroom door in an electromagnetic shielded enclosure according to claim 14 , wherein the another forcing end of the another lever has another cam surface.
16 . A hardroom door in an electromagnetic shielded enclosure, comprising: a door frame comprising a conductive ferrous surface; a hardroom door comprising a row of magnets around a perimeter thereof and hinges coupling an edge of the hard room door to the door frame; and a lever rotatably attached between the hardroom door in a configuration to pry open and break magnetic forces between the row of magnets and the conductive ferrous surface of the door frame.
17 . A hardroom door in an electromagnetic shielded enclosure according to claim 16 , wherein the lever is a cam lever.
18 . A hardroom door in an electromagnetic shielded enclosure according to claim 16 , wherein the lever has a handle end and an opposing forcing end, the handle end is longer than the forcing end, and wherein the lever is pivotably attached at a pivot point between the handle end and the forcing end to a side edge of the hardroom door.
19 . A hardroom door in an electromagnetic shielded enclosure according to claim 18 , wherein the forcing end of the lever has a cam surface.
20 . A hardroom door in an electromagnetic shielded enclosure according to claim 18 , wherein another lever has another handle end and an opposing another forcing end, the another handle end is longer than the another forcing end, and wherein the another lever is pivotably attached at another pivot point between the handle end and the forcing end to a outer edge of the door frame.

Description

BACKGROUND OF THE INVENTIONS 1. Technical Field The present inventions relate to electromagnetically shielded rooms and, more particularly, relate to door seals for electromagnetically shielded rooms. 2. Description of the Related Art Doors for electromagnetically shielded rooms are known with seals that seek to block electromagnetic energy from leaking into the room. What is needed is useful improvements to door seal technology that prevent leakage. BRIEF DESCRIPTION OF THE DRAWINGS The present inventions are illustrated by way of example and are not limited by the accompanying figures, in which like references indicate similar elements. Elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. The details of the preferred embodiments will be more readily understood from the following detailed description when read in conjunction with the accompanying drawings wherein: FIG. 1 illustrates a perspective cutaway view of a hardroom door at an inside corner with a gasket according to embodiments of the present inventions; FIG. 2 illustrates an exploded perspective cutaway view of a door at an inside corner with a gasket according to embodiments of the present inventions; FIG. 3 illustrates a cutaway view of the gasket in FIG. 1 according to embodiments of the present inventions; FIG. 4 illustrates a perspective cutaway view a back of the hardroom door with the gasket hinged to a door frame of a hardroom electromagnetic enclosure according to embodiments of the present inventions; FIG. 5 illustrates a perspective cutaway view of a lever handle on an edge of the hardroom door according to embodiments of the present inventions; FIG. 6 illustrates a perspective cutaway view of another lever handle on a side of the door frame of FIG. 4 according to embodiments of the present inventions and FIG. 7 illustrates a perspective view of a front of the hardroom door hinged to the hardroom according to embodiments of the present inventions. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates a perspective cutaway view of a hardroom door 1001 at an inside corner with a gasket 1010 according to embodiments of the present inventions. An edge seal for a hardroom door 1001 in an electromagnetic shielded enclosure is illustrated. A pair of fabric EMI gaskets 1010 (outer) and 1011(inner) run in parallel and adhered onto a perimeter of a conductive ferrous hardroom door surface 1020. A row of magnets 1030 runs between the pair of fabric EMI gaskets 1010 (outer) and 1011 (inner). It is magnetically adhered onto the perimeter of the conductive ferrous hardroom door surface 1020. A series of conductive, non-magnetic, non-ferrous copper, spring clips 1040 are inserted between the pair of fabric EMI gaskets 1010 and 1011 in at least corners of conductive ferrous hardroom door surface 1020, radiating about 12 inches (30.5 centimeters) from each corner in both directions. The spring clips help keep steel wool from sliding. Magnetic clips would reduce strength of magnet, so the spring clips are a conductive non-ferrous material such as copper. Strips of felted steel wool 1050 is deployed above the conductive non-ferrous spring clips 1040 and the row of magnets 1030. The row of magnets 1030 holds the felted wool 1050. Glue adheres the pair of fabric EMI gaskets 1010, 1011 onto the perimeter of the conductive ferrous hardroom door surface 1020. The conductive non-ferrous spring clips 1040 are curved about 180 degrees to fit held between the row of magnets 1030 on a side and the conductive ferrous hardroom door surface 1020 on the other and extend around with a spring to another, opposite side of the row of magnets. A door closing dampener can be added to prevent dangerous magnetic attraction door slamming and pinching. FIG. 2 illustrates an exploded perspective cutaway view of a door 1001 at an inside corner with EMF gaskets 1010 and 1011 according to embodiments of the present inventions. Exploded view shows layering of magnets 1030, conductive non-ferrous copper spring clips 1040, and strips of felted steel wool 1050, from bottom to top. FIG. 3 illustrates a cutaway view of the gasket 3010, outer, and 3011, inner in FIG. 1 according to embodiments of the present inventions. The strip of felted steel wool 3050 is layered vertically in-between outer gasket 3010 and inner gasket 3011. Outer gasket 3010 and inner gasket 3011 are attached to conductive ferrous surface 3020. Directly below felted steel wool 3050 is the top surface of conductive non-ferrous copper spring clip 3040. Copper spring clip 3040 folds 180 degrees around to lay beneath magnet 3030, touching conductive ferrous surface 3020. FIG. 4 illustrates a perspective cutaway view of a back of the hardroom door 4001 with the gasket pair 4010 and 4011 hinged to a door frame 4003 of a hardroom electromagnetic enclosure 4002 according to embodiments of the present inventions. The door frame 4003 is made of or covered