Fones v. American Specialty Co.

38 F.2d 639, 1930 U.S. Dist. LEXIS 1882
CourtDistrict Court, D. Connecticut
DecidedFebruary 25, 1930
DocketNo. 1979
StatusPublished
Cited by4 cases

This text of 38 F.2d 639 (Fones v. American Specialty Co.) is published on Counsel Stack Legal Research, covering District Court, D. Connecticut primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Fones v. American Specialty Co., 38 F.2d 639, 1930 U.S. Dist. LEXIS 1882 (D. Conn. 1930).

Opinion

THOMAS, District Judge.

The bill in this case charges the defendant with unfair competition and infringement of letters patent No. 1,303,161 granted to the Connecticut Telephone & Electric Company, Inc., on May 6, 1919, upon an application filed by John F. Cavanagh, on March [640]*64030, 1918, for an-electric switch. Plaintiff is the Receiver in equity for said Company which will be hereafter referred to as “The Connecticut Company.” The counterclaim, pleaded in the answer was withdrawn during the trial.

The defenses are noninfringement and invalidity by reason of, and lack of invention over, prior patents. As a third defense, defendant contends that it was justified in making the alleged infringing devices under a certain verbal agreement between itself and the Connecticut Company, whieh agreement the defendant claims was broken by the plaintiff without cause.

Claims 1, 3, 4-, 6, and 7 are in issue and read as follows:

“1. An eleetrie switch comprising, a base of insulating material having a relatively deep substantially parallel-sided reeess there»in, a pair of normally separated contacts mounted in said recess and confined against lateral movement by the side walls of said reeess, one of said contacts having a portion extending substantially transversely across the outer end of the reeess, a face plate secured to said base and closing the contact-containing reeess and a switch operating lever swiveled in said face plate and engaging at its inner end the transversely extending portion aforesaid of the contact for forcing said contact into engagement with the other contact.
“3. An eleetrie switch comprising, an insulating base having a recess therein, a yielding contact mounted in said reeess and having a bearing portion extending substantially across the open end of said reeess, a strip of insulating material slidably resting on said bearing portion of the yielding contact and confined to said bearing portion by the adjoining walls of the recess, a second contact in the reeess for engagement by said first contact, a face plate secured to the base over! said recess and an operating lever swiveled in the face plate and bearing at its inner end on said slidably supported strip of insulating material.
“4. An eleetrie switch- comprising an insulating base having a recess therein, a yielding contact mounted in said reeess in the base and having a bearing portion extending substantially across the open end of said recess, a strip of insulating material resting on said transversely extending bearing por-, tion of the yielding contact, and shaped to substantially conform to the walls of the reeess so as to be positioned thereby, a face plate secured to the base over said recess, and an operating lever swiveled in the face plate and bearing at its inner end on said strip of insulating material.
“6. An electric switch comprising, a supporting base, cooperating contacts mounted on said base, one of said contacts being inherently resilient and having a laterally extending bearing portion overlying the other contact and a swiveled operating lever having a substantially conical bearing point at the inner end thereof engaging the laterally extended bearing portion of the contact aforesaid and serving to cause said lever to be snapped in opposite directions as said lever is shifted in reverse directions.
“7. In an eleetrie switch, a pair of cooperating contacts, a switch operating lever having a ball shaped enlargement, a bearing plate having a socket in whieh said ball shaped enlargement is swiveled, and a bearing for said ball shaped enlargement at the back of said bearing plate.”

The invention of the Cavanagh patent relates to an eleetrie switch of the kind which consists of a supporting base of insulating material having a recess to form a housing for two contacts, the latter being attached to the inner face of the bottom of the said housing. One of these contacts is of yielding nature and has a bearing portion extending substantially transversely across the open end of the hollow base, said bearing portion being adapted to be engaged and depressed by the inner end of an operating lever. This lever has a swiveled bearing in a face plate whieh closes the open end of the hollow base. The 'flexure of the yielding contact has a tendency to cause it to “rub” against the relatively stationary contact with which it co-operates, and hence provides good, clean contact surfaces. A loose flat strip of insulating material is disposed in the housing, abutting against the yielding relatively movable spring contact. The recess in thq base is so shaped that it serves as a guide for the relatively movable spring contact and also as the means whieh maintains the insulating strip in co-operation with the switch lever, at all times in proper relation to the relatively movable spring contact. The switch lever is held between the socket in the face plate and the insulating strip merely by the screws whieh hold the face plat© and base together. The usual pivot pin for swiveling the lever is missing. The circuit wires are secured to the base by binding screws whieh screw into the rear end of rivets whieh serve i as the means for fixing the contact springs to the switch base. The switeh lever is provided at its [641]*641inner end with a conical abutment of insulating material bearing against the loose insulating strip within the switch base. By reference to figure 3 of the drawings of the patent in suit, it will be noted that the yielding end of the relatively movable switch contact is disengaged from the relatively stationary contact and that the switch lever is held in the position shown by the pressure of the said relatively movable contact against the inner end of the said lever. When the lever is swung to the opposite extreme of its movement, as illustrated in figure 2, the yielding contact is pressed into engagement with the other contact and the force of the yielding contact will, as the lever reaches dead center, snap the said lever into its extreme position. The same snap action takes place when the lever is shifted to break the circuit — the relatively movable spring contact acting in both cases in the nature of a toggle construction to snap the parts in circuit-open and circuit-closed position. The relatively movable contact also serves to hold the operating lever seated in its socket in either position and prevents the lever from rattling or working loose. In addition, the relatively movable spring contact takes up any wear that may occur between any of the parts.

Defendant’s device is a Chinese copy of the device described and claimed in the patent in suit, and differs from it, only, in that its insulating base is madei of two sections — and the base bottom which carries the two spring contacts is detachable from the body portion thereof. While there may be, -and in fact are, certain advantages obtained by making this base of two sections, infringement is not thereby avoided because the subdivision of a part, or combining two parts into one, without change of function, is not invention. Westinghouse et al. v. New York Air-Brake Co. (C. C.) 59 F. 581; Bonnette Co. v. Koehler et al. (C. C. A.) 82 F. 428; Davis v. Perry (C. C. A.) 120 F. 941; Kalamazoo Ry. Supply Co. v. Duff Mfg. Co. (C. C. A.) 113 F. 264. There is no question but that in defendant’s device, the two elements of the base effect the same results, in substantially the same way as the one element before division. Therefore the change is merely colorable.

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Bluebook (online)
38 F.2d 639, 1930 U.S. Dist. LEXIS 1882, Counsel Stack Legal Research, https://law.counselstack.com/opinion/fones-v-american-specialty-co-ctd-1930.