FR71984E - Procédé concernant plus particulièrement la fabrication de soupapes creuses à plateau pour les moteurs à combustion interne
- Google Patents
Procédé concernant plus particulièrement la fabrication de soupapes creuses à plateau pour les moteurs à combustion interne
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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co OHG
Original Assignee
Alfred Teves GmbH
Alfred Teves Maschinen und Armaturenfabrik KG
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Filing date
Publication date
Application filed by Alfred Teves GmbH, Alfred Teves Maschinen und Armaturenfabrik KGfiledCriticalAlfred Teves GmbH
Application grantedgrantedCritical
Publication of FR71984EpublicationCriticalpatent/FR71984E/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
B21K1/00—Making machine elements
B21K1/20—Making machine elements valve parts
B21K1/22—Making machine elements valve parts poppet valves, e.g. for internal-combustion engines
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Engineering & Computer Science
(AREA)
Chemical & Material Sciences
(AREA)
Combustion & Propulsion
(AREA)
Mechanical Engineering
(AREA)
FR71984D1957-04-191957-04-19Procédé concernant plus particulièrement la fabrication de soupapes creuses à plateau pour les moteurs à combustion interne
ExpiredFR71984E
(fr)