Movable or removable closures – With means mounting closure for reciprocation – Diverse or springy material guide or slide
Patent
1994-02-14
1994-10-18
Kannan, Philip C.
Movable or removable closures
With means mounting closure for reciprocation
Diverse or springy material guide or slide
49380, E06B 332
Patent
active
053556267
ABSTRACT:
An access panel assembly with a door and multi-functional frame which prevents sagging and warping of the door from the frame, and which is more safely and easily installed in both new and existing building structures. Flush mounting of the door to either face of the frame is achieved by a symmetrical mechanism wherein the inner edge of all four sides of the frame opening contains a molded, shallow groove which is equidistantly located from the two faces of the frame. The door contains on its underside a plurality of molded tabs, wherein each edge of the door has one or more tabs located adjacent thereto. The molded tabs are resilient so that they deflect when the door is press-fitted into the frame from either face. The molded tabs slide into the shallow grooves and hold the door firmly in place. Further, the door also contains one or more knockouts on the underside thereof, wherein each knockout is positioned near an edge of the door. The knockouts can be punched out, thereby creating a through hole so that electrical wiring, conduit, or plumbing access may be passed through the door.
REFERENCES:
patent: 1044383 (1912-11-01), Hatch
patent: 1818269 (1931-08-01), Olley
patent: 2352714 (1944-07-01), Huyssen
patent: 2793721 (1957-05-01), Sterud
patent: 3286405 (1964-05-01), Schembri
patent: 3491486 (1970-01-01), Caruth
patent: 3792551 (1974-02-01), Hallas
patent: 4890418 (1990-01-01), Sachs
Karp Associates, Inc., ACCESS DOORS, 1992, Maspeth, NY (product brochure 1992).
Karp Associates, Inc., EASI-ACCESS PANEL, Jan. 1992.
Do It Yourself Retailing, Oct. 1990.
Exhibit A.
Exhibit B.
Kannan Philip C.
Sachwin Products, Inc.
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