Summary

Samuel Blatchford Union Metallio Cartridge Company v…

The acquiescence and disclaimer must be regarded as equally operative to prevent those who hold the reissue in suit, whether in respect to the time before or after the extension, from being heard to allege that persons who use machines with a stationary die, D, and a movable bunter, E, infringe the claims of the reissue. The disclaimer was one of the fact of invention. It could not lawfully be anything but a disclaimer of the fact either of original invention or of first invention.
Source: Wikisource

Samuel Blatchford Union Metallio Cartridge Company v…

The hollow die and reciprocating mandrel to receive and carry forward the shell to be headed, and at the same time force out the preceding headed shell, are the chief elements of the machines which have produced the vast quantity of shells that have come into the market since the date of this invention. The rear or guide portion of the die is omitted in the present machines; and, instead of a recess in the die, a special feeding device is employed; also, instead of advancing the die against the anvil, it is now made stationary, and the anvil is advanced, the die spring being transferred to it.
Source: Wikisource

Samuel Blatchford Union Metallio Cartridge Company v…

He rendered a decision (7 Fed. Rep. 344) in which he said: 'Allen's original patent described a machine organized to move a 'die' against a 'bunter,' and, by their contact, to form a flange or head upon the metallic cartridge, which was carried by the die. The defendant's machines brought a movable bunter against a fixed die. This was an improved form of the machine, and was, perhaps, a patentable improvement; but it was the same machine, and was an undoubted infringement.
Source: Wikisource

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