Threaded – headed fastener – or washer making: process and apparat – Process – Making internally threaded fastener – e.g. – nut
Reexamination Certificate
2008-01-01
2008-01-01
Tolan, Ed (Department: 3725)
Threaded, headed fastener, or washer making: process and apparat
Process
Making internally threaded fastener, e.g., nut
C470S021000, C470S091000, C470S109000, C470S167000, C072S405060
Reexamination Certificate
active
11048219
ABSTRACT:
A method of manufacturing hollow body elements such as nut elements for the attachment to components consisting normally of sheet metal, in particular to the manufacture of hollow body elements with an at least substantially square or rectangular outer periphery by cutting individual elements by length from a section present in the form of a bar section or a coil after prior punching of apertures in the section, optionally with subsequent formation of a thread cylinder, utilizing a progressive tool having a plurality of working stations in which respective processes are carried out is characterized in that in each working station two respective operations are carried out for the section, or for each of a plurality of sections arranged alongside one another, for each stroke of the progressive tool at the same time. A hollow body element and also a progressive tool are also claimed.
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European Partial Search report dated Jul. 6, 2005.
English Translation of European Partial Search Report dated Jul. 6, 2005.
German Search Report dated May 24, 2004 for DE 10 2004 004 589.5 with English language translation of search report.
Babej Jiri
Humpert Richard
Vieth Michael
Hunton & Williams LLP
Profil Verbindungstechnik GmbH & Co. KG
Rzucidlo Eugene C.
Tolan Ed
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