Patent JPS58197218A successfully refreshed from Google Patents.
JPS58197218A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Manufacture of hollow stabilizer
Assignee: NHK Spring Co Ltd
•
Filing: 1982-05-13
•
Granted: —
•
Expires: 2002-05-13
Abstract
Abstract PURPOSE:To manufacture a hollow stabilizer with sufficient strength at a low cost by bending a steel pipe of carbon steel contg. boron for machine structure or general structure to a prescribed shape and water-hardening and tempering the bent pipe to provided specified hardness. CONSTITUTION:A steel pipe of carbon steel contg. boron for machine structure or general structure is bent to a prescribed shape. The bent pipe is water-hardened and tempered to provide 36-43 Rockwell hardness HRC. By this method the work environment and safety are simply controlled, and resources and energy can be saved.
Inventors
- 👤 Akira Ono
- 👤 明 大野
- 👤 Hiroshi Koyama
- 👤 博 小山
- 👤 Kanji Inoue
- 👤 関次 井上
- 👤 Hiroaki Ozawa
- 👤 小沢 広昭
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-09 14:48
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/08; C21D9/14; B; B60; B60G; B60G2202/00; B60G2202/10; B60G2202/13; B60G2202/135; B60G2206/00; B60G2206/01; B60G2206/012; B60G2206/40; B60G2206/42; B60G2206/427; B60G2206/80
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.