Static structures (e.g. – buildings) – Wall – ceiling – floor – or roof designed for ventilation or...
Patent
1993-08-20
1996-08-06
Mai, Lanna
Static structures (e.g., buildings)
Wall, ceiling, floor, or roof designed for ventilation or...
523023, 454289, E04B 170
Patent
active
055422233
ABSTRACT:
An air duct boot useful for connecting a heating and air conditioning duct to an air register grate to permit air to be circulated into a space to be heated or cooled. The air duct boot includes a housing of right parallelepiped configuration constructed of a synthetic resin and having an internal support for preventing excessive deflection of opposed walls of the housing when concrete is poured therearound. Reinforcing ribs are molded into the opposed walls. The housing also includes an integrally molded top or upper portion which can be quickly and easily removed after the boot is installed in a concrete pad or other foundation structure. A protuberant, generally cylindrical neck portion extends from one side of the housing near its lower end for connection to the duct. The entire air duct boot is molded as an integral unit.
REFERENCES:
patent: 24660 (1859-07-01), Potts
patent: D314820 (1991-02-01), Sullivan
patent: 925762 (1909-06-01), Eager
patent: 2086007 (1937-07-01), Tompkins
patent: 2215318 (1940-09-01), Bristol
patent: 2297179 (1942-09-01), Walker
patent: 2335906 (1943-10-01), Blinn
patent: 2348148 (1944-05-01), Rankin
patent: 3220079 (1965-11-01), Aggson
patent: 3677517 (1972-07-01), Root et al.
patent: 4261598 (1981-04-01), Cornwall
patent: 4499332 (1985-02-01), Shea et al.
patent: 4619471 (1986-10-01), Harbeke
patent: 4623170 (1986-11-01), Cornwall
patent: 4773197 (1988-09-01), Sullivan
patent: 4781401 (1988-11-01), Sharp
Inda John P.
Inda Joseph J.
General Plastics Inc.
Mai Lanna
LandOfFree
Air duct boot does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air duct boot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air duct boot will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2183382