Automatic air inlet damper
CA 1206086 A · Owner: Beckett (R. W.) Corporation · Inventors: Chakrawarti, Shekhar; Delancey, Warren; Haydn, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
11, Improved Automatic Air Inlet Damper Abstract, An improved automatic inlet damper is disclosed which is particularly suited for use in oil burners. A flexible coupling (16 - 44) is connected between rotating shafts (10 12) and supports an automatically actuated closure (64) which is moved into and out of engagement with an aperture (14) by a centrifugally actuated linkage (46 - 62 78 -, 110). See Figure 1.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 17, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.