Coffield Motor Washer Co. v. A. D. Howe Mach. Co.Coffield Motor Washer Co. v. A. D. Howe Mach. Co.
For the fourth time I am now called upon to pass upon the validity of complainant’s reissue letters patent No. 12,719. Tn the case of Peter T. Coffield & Son v. Spears & Riddle (C. C.)
These propositions have been repeatedly maintained and upheld in. a vast number of patent cases, among which are: Gandy v. Main Belting Co.,
Ornold was a selling agent of the Coffields, and as such became thoroughly familiar with this motor, its mechanism, its achievements, and its popularity. He left their employ and associated himself with Howe, and they two set to work to devise a motor that would perform the same functions as the Coffield one without infringing its patent. They admit two failures in attempts to accomplish this, and their third one, which is charged in this suit to be an infringement, I do not find the least trouble in ascertaining to be so for the reasons set forth in my former opinion in this case. But they were not alone in their effort to secure a share of profit derivable from the manufacture and sale of this popular motor applied to this use of manipulating washing machines. It appears from the record that the Coffield Company and its predecessors have been compelled to prosecute suits for infringement against Hax and Davidson in the Southern District of Ohio, against Spears and Riddle in this district, and against the Blackstone Manufacturing Company in the Western District of New York. It may therefore be conceded that all the presumptions arising in favor of an invention from its widespread commercial success and of its utility, as attested by the litigation over it, attaches to this Coffield motor patent.
How about the Bergstrom and Hayes patents? The Bergstrom issued from the United States Patent Office February 15, 1876, No. 173,579, and was reissued as No. 8,120 on March 12, 1878.- The-Hayes is an English patent No. 2,644, issued July 10, 1877. The Berg-strom original is therefore 35 years, the reissue 33, and the Hayes 34 years old. The Bergstrom is solely for “Improvement in Piston Water Meters,” the Hayes for “Liquid Meter or WaterrPower Engine.” Bergstrom clearly never contemplated the usé of his device as a motor having power to manipulate other machinery, but his clear and sole purpose was to invent an accurate measurer of water as it flowed through the pipes to which it was to be attached. It was not practical and accurate for this purpose, as all the experts substantially agree, and its “double use” as a power motor was not thought of. So, as far as disclosed, it was never accepted or used commercially for any purpose. So, too, the Hayes patent was designed as a liquid meter, although Hayes had a vague and hazy idea of its rise, as a water power engine, as he says: “And for transmitting.power or as a motor the apparatus
“Inclined studs i> on the piston heads serve as bearings for the ends of latches when the piston reaches either end of its stroke, and by elevating the latches release the valve stems which are then suddenly and forcibly thrown inward, readjusting the valve and reversing the movement of the piston.”.
Bergstrom accomplishes a single movement by the force of the spring in the same way. Defendant’s expert, Coombs, admits this. Does not this “sudden and forcible” throwing inward of these valves imply constant wear upon the valves and their seats? In such operation are not the springs overworked? Under very heavy pressure are they not liable to break? If they are made extra strong, are they not liable under very light pressure to be too unyielding? According to complainant’s tests touching these questions, where a water pressüre of 150 pounds is used, a"spring tension of 49.90 pounds would be produced, and a blow of 49.90 pounds would be inflicted by the valves upon their seats by reason thereof. This would certainly rapidly destroy the valve and weaken the springs, to say nothing of the liability to constant breakage. On the other hand, by the double movement involved in Coffield, the valves are unseated by first a rigid means
The injunction must be perpetuated and an accounting awarded.