Drilling fluid processing system
CA 1112516 A · Owner: Dresser Industries, Inc. · Inventors: Pettye, Jack C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A system is provided to protect drilling fluid processing equipment from damage in shipment and in installation and operation at the work site. The drilling fluid processing equipment in the preferred embodiment of the invention consists of a pump with an elongated drive shaft supported only by bearings at the motor end, leaving the shaft housing vulnerable to bending. The pump is rotated about a support bar on a skid unit causing the elongated drive shaft and shaft housing to be lowered through an opening in the skid unit to the operating position. The pump may be inspected and/or repaired by rotating it upward through the opening. The length of shaft and shaft …
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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 November 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 1998.
- 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.