Stoves and furnaces – Stoves – Heating
Patent
1998-05-05
2000-03-28
Lazarus, Ira S.
Stoves and furnaces
Stoves
Heating
112285R, 112289, 112290, 112193, 236 99F, 236101D, F24C 114, F23L 300, F23N 100
Patent
active
060417706
ABSTRACT:
A bi-metal control flap for a wood stove is biased to close by gravity and is controlled to open an air inlet when the temperature rises which is opposite to the traditional bi-metal control systems which close when the temperature rises. The valve is a free pivoted L-shaped flap with a first portion and a second portion extending from a pivot position and supported by a casing. The first portion is positioned over an air supply inlet and retained over the inlet by gravity. A crank arm supported by the casing rotates to push against the second portion of the flap to open the flap a predetermined amount, and a bi-metal strip coil having an outer end attached to the casing and a floating inner end attached to the crank arm such that a change in temperature causes the crank to rotate to open the flap or allow the flap to close by gravity.
REFERENCES:
patent: 1884987 (1932-10-01), Wessels
patent: 1971431 (1934-08-01), Sigmon
patent: 2470533 (1949-05-01), Thomas
patent: 3099436 (1963-07-01), Siddle et al.
patent: 3168088 (1965-02-01), Martin et al.
patent: 4117824 (1978-10-01), McIntire et al.
patent: 4136662 (1979-01-01), Willson
patent: 4141336 (1979-02-01), Fitch
patent: 4194487 (1980-03-01), Cadwallader et al.
patent: 4214569 (1980-07-01), Heine
patent: 4265213 (1981-05-01), Gorsuch et al.
patent: 4350141 (1982-09-01), Miller
patent: 4409956 (1983-10-01), Barnett
patent: 4530346 (1985-07-01), Roy
patent: 4677965 (1987-07-01), Duerichen
patent: 5284127 (1994-02-01), Driesmans
Lazarus Ira S.
Lee David
LandOfFree
Bi-metallic control device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bi-metallic control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-metallic control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1316996