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(12) Patent: | (11) CA 1148048 |
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(21) Application Number: | 1148048 |
(54) English Title: | APPARATUS TO REDUCE WINTER AIR INFILTRATION INTO A SINGLE FAMILY OIL HEATED RESIDENCE |
(54) French Title: | DISPOSITIF POUR REDUIRE L'INFILTRATION D'AIR FROID DANS DES MAISONS UNIFAMILIALES CHAUFFEES AU MAZOUT |
Status: | Term Expired - Post Grant |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | 1983-06-14 |
(22) Filed Date: | 1981-02-18 |
Availability of licence: | Yes |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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Abstract: -
In single family house oil heating, it is common to
recommend caulking of exterior cracks to minimise air infiltration
or "air change". More recently, in attempts to improve furnace
efficiency, stack dampers have been proposed, but have various
disadvantages including illegality in many jurisdictions.
In this invention, the oil burner (air inlet) is enclosed
by a duct, at the side or end of which a damper hangs freely in a closed
position. When the burner is not in operation, the enclosure and damper
minimises the volume of air drawn through the burner etc, from within
the house by chimney draft. When the burner is operating, the damper
is opened by suction from the burner fan, permitting normal combustion
air to enter the burner.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 1148048 was not found.
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Description | Date |
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Inactive: IPC from MCD | 2006-03-11 |
Inactive: Expired (old Act Patent) latest possible expiry date | 2000-06-14 |
Grant by Issuance | 1983-06-14 |
There is no abandonment history.
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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LAMBERT, JOHN D. |
Past Owners on Record |
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JOHN D. LAMBERT |