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FR971380A - Improvements in the manufacture of hollow valves - Google Patents

Improvements in the manufacture of hollow valves

Info

Publication number
FR971380A
FR971380A FR971380DA FR971380A FR 971380 A FR971380 A FR 971380A FR 971380D A FR971380D A FR 971380DA FR 971380 A FR971380 A FR 971380A
Authority
FR
France
Prior art keywords
manufacture
hollow valves
valves
hollow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Gabriel Jeudi
Louis-Camille-Andre Gardelle
Andre-Alfred-Arsene Lemoine
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR971380A publication Critical patent/FR971380A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
    • B23P15/002—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings poppet valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR971380D 1940-04-24 1940-04-24 Improvements in the manufacture of hollow valves Expired FR971380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971380T 1940-04-24

Publications (1)

Publication Number Publication Date
FR971380A true FR971380A (en) 1951-01-16

Family

ID=9512977

Family Applications (1)

Application Number Title Priority Date Filing Date
FR971380D Expired FR971380A (en) 1940-04-24 1940-04-24 Improvements in the manufacture of hollow valves

Country Status (1)

Country Link
FR (1) FR971380A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047876A1 (en) 1999-02-12 2000-08-17 Nittan Valve Co., Ltd. Hollow poppet valve and its manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047876A1 (en) 1999-02-12 2000-08-17 Nittan Valve Co., Ltd. Hollow poppet valve and its manufacturing method

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