178 F. 455 | 3rd Cir. | 1910
This is an appeal by the complainant in the court below from a decree sustaining a demurrer of the appellee, the defendant below, to the bill of complaint.
The suit was brought to restrain infringement of United States letters patent No. 832,896, for improvements in amplifying horns for talking machines, issued to appellant in October, 1906, as assignee of one Wilburn N. Dennison.
The grounds of the demurrer to the bill filed by the complainant were, in substance, that the letters patent in suit were invalid and void, because the improvements therein set forth lacked invention and did not require the exercise of the inventive faculty.
In the specifications of the patent, it is stated:
“My invention relates to amplifying-liorns for talking machines and more especially to means for detachably mounting the horn upon the machine and for connecting sections of the horn in a readily detachable manner, as will be hereinafter described and claimed.”
The specifications thus refer to the drawings:
“In the drawings, the reference-numeral 1 indicates the motor-casing; 2, the turn-table and record thereon; 3, the sound-box;. 4, the tapering hollow pivoted sound-box-supporting-tube; 5, the supporting-bracket for said arm and*456 the amplifying-horu; -6, a yoke for holding the amplifying-liorn in position; and 7, a thumb-screw for securing the yoke 6 to the bracket 5.
“The above described parts are not of my present invention, which relates to the amplifying-liorn 11 and the tubular member or sound-conveyer section 8 thereof. * * * >
“The section 8 flares outwardly, and its outer end receives the small conical or tapering end of the detachable and separable body-section 11 of the horn, this small end fitting therein. The section 8, it might be said, forms a part of the horn as well as of the machine, for while it forms the small end portion or section of the horn as a whole, yet it is secured to a stationary part of the machine and is in fact the means for supporting the body of the horn upon the machine. In fact, however, the horn consists of these two telescopic separable tapering sections 8 and 11, the larger end of the former receiving within it the small end of the latter, and as a further part of my invention I provide1 connecting means for these, sections comprising interengaging or interlocking parts carried thereby. Tliese means are upon the large end of section 8 and the small end of section 11, and as a preferred, convenient, and efficient construction I elnploy an inclined slot 10, preferably in section 8, and the lug or pin 12 in section 11.”
“An amplifylnpi-liom consisting of a sovmd-eoiive.ver section having means for engaging a normally stationary support, an amplifying-liorn section detachably mounted upon said conveyer-section, rlie ends of said conveyer and horn sections telescoping, and interlocking means carried by said sections and a( la pied to hold them in telescoped relation, the said liorn sect ion being removable front said conveyer-section while the latter is mounted upon its support.”
As the means for engaging the sound conveyer-section with the stationary support are exactly the same as those employed before the division was made between the sound conveying section and the horn section, it is apparent, both from the claims and the specifications, that the patentee's so-called invention was nothing more than the making of an old form of talking machine horn in two pieces, which are detachable or separable, with means for uniting them and securing them when united. From the tapering form of the horn, it is obvious that the diminishing end of the horn section could he so constructed as to easily enter the widening end of the conveyer section, the conical formation readily lending itself to the tightening of the parts as the one is pressed into the other. The means of securing the parts when thus put together, by a small pin or lug on the inside of the horn part, to engage in the cam-like slot in the conveyer part, and the further drawing together of the parts by turning the pin in the slot, are means so obvious to any mechanic, that no invention can possibly lie involved therein. It is, in fact, only a mollification of the old and well known bayonet joint.
The advantages urged by counsel for the appellant, that make his two-piece horn an improvement on a one-piece horn, are (1) that a one-piece horn would be “most unsuitable for transportation and shipping purposes-’; (2) that a one-piece horn “would occupy a large amount of unnecessary space-’; and (3) because, “if it should be desired to store the talking machine,” the one-piece horn would prove clumsy and inconvenient. These disadvantages are said by counsel in his argument to be obvious and evident to the court. If so, as said by the court below they did not require expert or other testimony to point them out. Being obvious and self evident, the remedy employed of cutting the horn in two sections, was equally obvious and self evident, and to claim a patent monopoly therefor is a misuse of the patent laws which are to foster invention alone. The device of the patent in suit, to overcome the inconvenience of handling and packing a one-piece horn, no more involves invention than cutting a length of stove pipe into two sections and providing for their being united and fitted together, by slightly crimping the end of one section, that it may enter and be pressed into the end of the other.
Counsel for appellant dwells much upon the wide extent of the use made of this divided horn since the issuance of the patent in suit. It may he admitted that the commercial utility of a patented device is sometimes persuasive evidence of invention. But it is not conclusive. Courts are slow to sustain demurrers on the ground that the letters
The decree of the court below is therefore affirmed.