← Back to Patent Explorer
JPS599376A Expired / Lapsed JP ⏱️ 0.0 years remaining

Butterfly valve

Assignee: Iwai Kikai Kogyo Co Ltd
•
Filing: 1982-07-08
•
Granted: —
•
Expires: 2002-07-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE:To switch a passage in response to the various objects by rotatably journalling a platelike valve of the prescribed shape in a valve box which has 3-way or 4-way ports. CONSTITUTION:A T-shaped disclike valve is rotatably journaled by a central shaft 5 in a valve box 3 in which a seal 2 which operates as a function of a valve seat having 3-way ports 1 between the ports 1. When the rotating position of the valve 4 is varied, the passage can be switched to various directions. The shape of the valve is not limited to the T shape, but may employ L shape platelike valve or linear platelike valve.

Inventors

  • 👤 Yoshiyuki Yugai
  • 👤 湯蓋 芳之

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-02 11:36
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/052; F16K11/0525

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag