JPS5660892A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Westco rotary pump
Assignee: Hitachi Ltd
•
Filing: 1979-10-22
•
Granted: —
•
Expires: 1999-10-22
Abstract
Abstract PURPOSE: To promptly discharge foreign matter entered in a liner space where an impeller directly faces a casing by providing a foreign matter guide channel in the liner space. CONSTITUTION: When foreign matter enters a liner space 12 located between an impeller 3 and a casing 4, the foreign matter is transferred in the liner space 12 in circumferential directions by revolution of the impeller 3 and is trapped in a guide groove 14. The foreign matter is discharged into a water channel 6 by pressure differences between the inner and outer peripheral sides of the guide groove 14. COPYRIGHT: (C)1981,JPO&Japio
Inventors
- 👤 Tetsuro Akasaki
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-07 08:27
CPC Classifications
—
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
JPS5319812B1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.