Vibration suppressing device for stator coils of rotary electric machines
CA 1107339 A · Owner: Hitachi, Ltd. · Inventors: Kadotani, Kenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved device for suppressing vibration of stator coils in a rotary electric machine for, example, a turbogenerator. In order to absorb radial and transverse deformation of a stator coil in an armature winding slot of such a machine due to thermal expansion or thermal deterioration of an associated insulator layer during operation of the machine over an extended period of time, the device comprises a pair of taper liners interposed between the stator coil and one of the side walls of the winding slot, and a spring member interposed between the stator coil and an assoclated slot wedge to engage at a portion thereof with the wider end of one of the taper liners.
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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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 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.