1. Letters patent No. 4887, bearing date April 30, 1872, granted
to Washburn Race and S. R. C. Mathews for an improvement in
hydrants, being a reissue of letters No. 19,206, dated Jan. 26,
1858, are void inasmuch as, by claiming the elements of the
invention separately and not as a combination which is claimed in
the original letters, they enlarge the scope of the latter, and
they also cover a different invention.
Miller v. Brass
Company, 104 U. S. 350,
cited and approved.
2. Letters patent No. 96,959, bearing date Nov. 16, 1869,
granted to said Race and Mathews for an improvement in hydrants,
are also void, as they embrace matters previously known and in
public use.
The facts are stated in the opinion of the Court.
MR. JUSTICE BRADLEY delivered the opinion of the Court.
This case comes before us on an appeal from a decree dismissing
a bill in equity filed by Samuel R. C. Mathews and
Page 105 U. S. 55
others, the appellants, against the Boston Machine Company and
others, in which they prayed for an injunction and account of
profits for an alleged infringement of two certain patents granted
to Washburn Race and S. R. C. Mathews, one dated April 30, 1872
(being a reissue of a patent granted Jan. 26, 1858), and the other
dated Nov. 16, 1869. The defendants, in answer, denied that Race
and Mathews were the first inventors of the thing patented,
referring to several prior patents and naming prior instances of
knowledge and use of the alleged invention, and amongst other
things setting up a patent issued to one Zebulon E. Coffin dated
July 21, 1868. They also denied that the reissued patent was for
the same invention as the original, and denied infringement. The
complainants filed a supplemental bill alleging that since the
filing of the original, the defendants had procured a reissue of
Coffin's patent which contained substantially the same invention as
that described in the complainants' patent of 1869, but that Race
and Mathews were the first and original inventors of the thing
patented, and therefore they prayed that the Coffin patent might be
declared void.
The Race and Mathews patents, on which this suit was brought,
relate to casings or jackets around hydrants, and to the valves for
letting on the water when wanted for use, and for draining it out
of the hydrant when not in use. 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.
Many casings formerly used were fastened in different ways to the
hydrant, and they raised it, when they were lifted by the frost,
causing breakage or leakage or other damage by the displacement,
and the hydrant could not be disconnected from the main and
removed, without removing the casing also.
So far as the improvement in the casing is concerned, the
Page 105 U. S. 56
principal thing claimed to be effected by the patentees Race and
Mathews is the placing of the case in position without attaching it
to the hydrant or to the elbow of the main pipe below, so that the
hydrant, whilst being protected from frost and the surrounding
earth, may be lifted out separately, and so that the lifting of the
case by the frost and surrounding earth will not disturb the
hydrant. These objects are effected by two different devices --
first by causing the case to rest loosely on a flange projecting
from the elbow of the main or otherwise and allowing it to slide up
the hydrant which it surrounds, and which is enlarged at that point
for holding the valves; secondly by allowing the upper end of the
case to embrace the hydrant (enlarged at that point also) and to
slide up and down upon it like a sleeve. Of course the case must
fit the hydrant snugly enough to keep out the influx of cold air
above and of dirt below, but not so tight as to prevent the hydrant
from being lifted out or the case from slipping up and down upon
it. This is the thing which the complainants contend that Race and
Mathews invented.
As first patented in 1858, the invention did not accomplish the
object. The bottom of the case, it is true, surrounded the hydrant
like a sleeve, and rested on a flange projecting from the elbow
(which allowed the hydrant to be separately removed without
removing the case); but the top of the case was enclosed in a
flanged projecting from the enlarged part of the hydrant above,
like the brim of a hat but turned down over the top of the case, so
that the latter, though unconnected otherwise with the hydrant, yet
if it were lifted by the frost, it would press upward against the
flange and raise the hydrant also. This difficulty was remedied by
the invention of the improvement patented in 1869, by which the top
of the case was made to surround and enclose the upper enlargement
of the hydrant and to slide over it like a sleeve, as before
stated. The reissued patent of 1872 substantially embraces both
features of the improved case -- namely its disconnection with the
hydrant both above and below -- and places much stress on the dead
air chamber as a protection from frost and on the protection of the
hydrant below from the surrounding earth, although no claim is
based on these last features.
Page 105 U. S. 57
The defendants contend that this reissued patent is not for the
same invention as that which is described and patented in and by
the original patent of 1858; that the latter made no mention of the
dead air chamber formed by the casing as a protection of the
hydrant from the frost, and that it contained no indication that
the case should fit closely to the hydrant so as to prevent the
passage of cold air into the chamber from without. But to these
objections it is answered that the case invented by Race and
Mathews in 1858 was a machine or apparatus having or being
susceptible of various functions, some of which were well known and
needed not to be mentioned or described. Amongst these known
functions of the hydrant casing were the formation of a dead air
chamber to prevent freezing and the protection of the hydrant from
contact with the surrounding earth. The patent of Coffin, on which
the defendants rely, states that prior to the date of his
invention, frost jackets or cases on hydrants were well known; that
they surround the hydrant proper, an air space existing between the
two. It was not necessary for the patentees, Race and Mathews, to
enumerate all the known functions of these frost jackets in their
original patent, and as no claim was based upon them, it could not
be hurtful to enumerate them in the reissued patent.
But the complainants, in their reissued patent, have split up
and divided the elements of their invention and claimed them
separately, and not as a combination. Of course, this enlarges the
scope of their patent. The separate claims embrace fewer elements
in combination than were embraced in the claim of the original
patent. No one could infringe the original patent unless he used
all the elements of the combination. Anyone 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. This, in the reissued patent, is divided into two claims
-- namely first, the jacket surrounding the hydrant and
Page 105 U. S. 58
forming a separate and removable part from the elbow,
substantially as and for the purpose set forth; secondly, the
independent jacket supported on the arm or elbow of the main at or
near the junction of the hydrant, substantially as shown and
described -- that is to say there is a claim of a jacket separate
and removable from the elbow, and of a jacket resting on the elbow.
It cannot be denied that each of these separate claims is much
broader than the claim in the original patent, and they are put
forth in the reissue fourteen years after the original was granted.
The latter showed on its face that these broad claims were not
made, and if the patentees were really the inventors of an
independent jacket standing loosely on the elbow of the main, when
apprised that it was not claimed in the patent, they ought to have
used due diligence in surrendering it and having the mistake
corrected. The case clearly comes within the ruling in
Miller
v. Brass Company, 104 U. S. 350.
There is still another objection the claims in question. There
is a wide departure from the original invention in this, that the
subject of the latter was a jacket, or casing, whose top was
enclosed and covered by a flange projecting from the hydrant, which
effectually prevented the removal of the jacket without removing
the hydrant also, and which caused the hydrant to be raised when
the jacket was lifted by the frost. In the reissued patent, nothing
is said of this arrangement of the top of the jacket, and the
claims ignore it altogether, so that, as already intimated, the
patent as it now stands would cover such a jacket as that described
and claimed in the complainants' patent of 1869, which slides like
a sleeve over the hydrant at top as well as bottom. The reissue is
not only for a broader claim made many years after the original was
granted, but is for a different invention. Therefore, so far as the
jacket is concerned, we think it cannot be sustained.
But the patent of 1869 still remains. That was for an
improvement by which it was proposed to liberate the top of the
case from the flange which covered and enclosed it, and make it
surround the hydrant and slip over it like a sleeve. The claim is
for
"The detached case B, so combined and arranged with the hydrant
A as to have an end play, or vertical motion
Page 105 U. S. 59
of several inches, to compensate for the heaving by frost, the
upper part of same passing outside of main stock of hydrant."
Had this patent been confined to a hydrant jacket closed at the
bottom and resting on a flange of the main elbow, perhaps it might
have been sustainable. But it is not so confined. It is only said
that the lower end preferably shuts into a flange of the elbow. The
specification, it is true, commences with a statement that the
invention was a mere improvement upon that described by the patent
of 1858, which was for a case closed at the bottom by standing on a
flange; but before getting through, there is an evident departure
from that, and an indication that the patentees had begun to
entertain views of an expanded construction intended to be placed
on the original patent, which afterwards found expression in the
reissue of 1872. 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.
As to the valve apparatus, the object of which is to let the
water in the body of the hydrant escape when the main valve is
closed and to prevent any escape of water when the main valve is
open, since Race and Mathews were not the original inventors of
this process, but only of a particular arrangement of valves to
effect it, they can only properly claim the specific arrangement
which they invented. And in view of the older valve in the St.
Louis hydrants, which that of the defendants most nearly resembles,
and of the fact that the valve used by the defendants is not in the
specific form of that invented by Race and Mathews, we think that
the defendants are correct in their position that they do not
infringe the patent of Race and Mathews as that patent must be
construed in order to be sustained.
Decree affirmed.
MR. JUSTICE MATTHEWS and MR. JUSTICE GRAY did not sit in this
case nor take any part in deciding it.