Vibration isolating means
CA 1204904 A · Owner: Shop-Vac Corporation · Inventors: Berfield, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum cleaner is provided with a subassembly including an electric motor, a fan driven by the motor and a housing which supports the fan and motor. This assembly is supported on the upper surface of the lid of the dirt collecting drum, with the fan housing being clamped between a motor housing and the lid. First and second thin ringshaped gaskets mounted in face-to-face relationship are cemented to the fan housing and lid, respectively. A lightly compressed third relatively thick ring-shaped gasket is interposed between the motor housing and fan housing. This three gasket combination serves to effectively isolate the lid and motor housing, as well as other elements of the vacuum cleaner …
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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 May 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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.