Summary

Joseph P. Bradley Mathews v. Machine Company — Opinion of the Court

The claim of the patent of 1869, as it stands, covers any and every loose jacket having an end play to compensate for the heaving of the frost, and having the upper end passing around the hydrant. It covers the old New York wooden case, or housing, which was in public use for many years before Race and Mathews gave their attention to the subject. We are of opinion, therefore, that this patent cannot be sustained.
Source: Wikisource

Joseph P. Bradley Mathews v. Machine Company — Opinion of the Court

No one could infringe the original patent unless he used all the elements of the combination. Any one will infringe the reissue who uses any of those elements which are now separately claimed.
The original patent had but a single claim in reference to the case, being a claim for a combination between the hydrant, the induction pipe provided with a flange to sustain the jacket, and the jacket itself, when arranged as described in the specification to effect the desired end, to wit, the ready removal of the hydrant.
Source: Wikisource

Joseph P. Bradley Mathews v. Machine Company — Opinion of the Court

It is conceded that the objects of the casing are to prevent freezing in and around the hydrant, by surrounding it with a volume of dead air, to keep it free from contact with the surrounding earth, and to enable the hydrant to be taken out of the ground without removing the surrounding earth. If the earth is in contact with the hydrant, it lifts the hydrant out of place by the action of the frost, and has to be dug away when repairs or other operations have to be performed below the surface.
Source: Wikisource

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