High pressure bellows capsule and method of making same
CA 1186643 A · Owner: Metal Bellows Corporation · Inventors: Shamie, Raymond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Discusser, A bellows capsule for use in applications where the pressure on the outside of the bellows capsule is substantially higher than that on the inside is formed with spacer rings positioned between the diaphragms forming adjacent bellows convolutions at the inner diameter of the bellows. The total thickness of each diaphragm pair and the intervening ring is greater than the diameter of the bead at the outer diameter or rim of each bellows convolution. When the bellows is urged to its fully compressed position, its diaphragms are able to nest so that the wall portions having a large pressure differential across them are supported by an adjacent diaphragm and a load bearing …
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 May 7, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 7, 2002.
- 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.