In-line access door
An in-line access door comprising an inner door for covering and sealing a duct opening, the inner door comprising a hole for receiving a fastener, the fastener engageable with a stud, the stud fixedly attached to the duct, an outer door, a releasable snap fastener for attaching the outer door in a fixed position relative to the duct, an insulating member disposed between the inner door and the outer door, and a gasket disposed between the inner door and the duct for sealing the joint between the inner door and the duct.
1 . An in-line access door comprising:
an inner door ( 11 ) for covering and sealing a duct opening ( 12 ), the inner door comprising a hole ( 16 ) for receiving a fastener ( 14 );
the fastener engageable with a stud ( 13 ), the stud fixedly attached to the duct;
an outer door ( 11 );
a releasable snap fastener ( 19 ) for attaching the outer door in a fixed position relative to the duct;
an insulating member ( 42 ) disposed between the inner door and the outer door; and
a gasket ( 17 ) disposed between the inner door and the duct for sealing the joint between the inner door and the duct.
2 . The in-line access door as in claim 1 , wherein the inner door further comprises a handle.
3 . The in-line access door as in claim 1 , wherein the fastener comprises a wing nut.
4 . The in-line access door as in claim 1 , wherein the inner door further comprises a dam for sealing engagement with the duct opening.
5 . The in-line access door as in claim 1 , wherein the inner door further comprises a reinforcing member.