Boiler penthouse access door

Details Boiler penthouse access door Boiler penthouse access door

1986-04-18

1987-08-11

Lowrance, George E.

Receptacles

Closures

Warped cover flexed into operative position

220213, 220215, 220314, B65D 4528, B65D 4316

Patent

active

046855866

ABSTRACT:
A door system for a boiler penthouse or other high temperature industrial environment is disclosed. A sufficiently large entranceway for both workmen and large equipment is provided by the door system. The access door has the capability for quick gas-tight sealing during closing. A hinged metal door plate has arcuate welding beads applied to its internal surface near its corners to produce permanent inward cupping of the door plate adjacent to its corners. Devices apply pressure to the exterior surface of the door plate during the closing thereof to flatten the inwardly cupped corners and effect gas-tight sealing of the interior surface of the door plate near its margin with an opposing high temperature resistant gasket carried by the front face of a refractory insulated door frame. A layer of thermal insulating material in a protective jacket is secured to the interior surface of the door plate.

REFERENCES:
patent: 1266926 (1918-05-01), Dundon
patent: 1859169 (1933-01-01), Mosel
patent: 2239096 (1941-04-01), Holland
patent: 2285935 (1942-06-01), Meyer
patent: 2301365 (1942-11-01), Bushnell
patent: 2629514 (1953-02-01), Savolainen
patent: 2883043 (1959-04-01), Kurath
patent: 4313025 (1982-01-01), Grube

Affiliated with

Also associated with

Rating

Boiler penthouse access door does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Boiler penthouse access door, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boiler penthouse access door will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-398153