Batcheller v. Henry Cole Co.

7 F. Supp. 898, 1934 U.S. Dist. LEXIS 2050
CourtDistrict Court, D. Massachusetts
DecidedJuly 30, 1934
DocketNo. 3846
StatusPublished
Cited by1 cases

This text of 7 F. Supp. 898 (Batcheller v. Henry Cole Co.) is published on Counsel Stack Legal Research, covering District Court, D. Massachusetts primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Batcheller v. Henry Cole Co., 7 F. Supp. 898, 1934 U.S. Dist. LEXIS 2050 (D. Mass. 1934).

Opinion

BBEWSTEB, District Judge.

This bill of complaint alleges infringement of three letters patent of the United States, issued to the plaintiff. Bateheller. Only two of them are now in controversy. These axe No. 1,886,517 and No. 1,888,444. The defenses are noninvention, anticipation, and noninfringement.

Statement of Facts.

1. On November 8, 1932, letters patent No. 1,886,517 were issued to Bateheller on his application dated September 11, 1931. This alleged invention related to an electric switch of “the phsh and pull type.” Qn November 22, 1932, letters patent No. 1,888,-444 were issued to Bateheller on his application filed September 11, 1931. This patent relates to a so-called “toggle switch.”

2. Both of these switches embody the basic elements of gap-separated terminals with a bridging conductor which in one position closes the electric circuit and in another breaks it. Both are small, low-power switches, designed for use in electric circuits in autos, radio receivers, and household electric appliances.

No. 1,886,517.

3. This device is sufficiently illustrated by claim 1 of the patent, which follows:

“1. A push and pull switch comprising a casing including a head having in one end an open chamber, and a sleeve fixed to the opposite end of the head and projecting-therefrom; a plurality of annular terminals fixed to and insulated from each other in the said chamber and having eireulár orifices whose margins constitute annular spaced apart contact surfaces concentric with each other and with the sleeves, each terminal having means for connection with a circuit wire; and a hand piece longitudinally movable in the sleeve and chamber and having a spring-pressed bridging conductor movable by the hand piece to contact either with two annular contact surfaces simultaneously, or with only one of said surfaces, one of said annular contact surfaces being contracted so that its diameter is smaller than that of any other contact surface, the arrangement being-such that when the bridging conductor contacts with two annular surfaces, one of which is the contacted surface, removal of the hand piece by outward endward movement thereof is prevented.”

Claim 2 adds only slots in the walls of the chamber and shanks on the terminals projecting through the slots.

4. The drawings and specifications disclose a switch of the push and pull type in which the circuit is closed by moving a spherical bridging conductor into engagement with two annular terminals having circular contact surfaces, the ball conductor being carried by a hand piece which is longitudinally slidable and angularly rotatable in a sleeve forming part of the switch casing. The circuit is broken by pressing the hand piece inwardly to move the ball out of contact with one of the annular terminals. To prevent outward movement beyond the desired point, one annular contact surface has a smaller diameter than that of the others. The hand piece is free to rotate through the complete circle of 360 degrees, due to the concentric, circular orifices constituting the contact surfaces.

5. All the elements of the patent were old. With the single exception all are found in British patent No. 206,841 (1924) to Brown, Bovori & Cie. This patent disclosed a push-pull switch with a chamber of in[900]*900sulated material inside of which, are insulated annular terminals of conducting: material connected to a circuit wire. These rings are concentric with each other and with the sleeve through which a plunger operates. The circuit-closing device comprises a plunger, at the lower end of which are balls so mounted that they are pressed against the annular terminals. As the plunger is moved in or out, a circuit is closed or opened by .the ball bridge conductor. This device was intended for use in circuits of high voltage, but it has all of the features of the first claim except the contraction of one of the rings.

6. The use of a spherical bridge conductor associated with annular terminals to open and close circuits in switches was practiced several years before Bateheller’s invention by the Signal Manufacturing Company in the construction of a device known as the “Eveready Ball Contact Stoplight Switch.”

Other patents, notably Douglas, U. S. No. 1,710,411 (1929'),,and Klein, U. S. No. 1,240,459 (1917), show push and pull switches of which plaintiffs’ device is only a slight modification.

7. Defendant manufactures and sells a push and pull switch which differs from the patented switch only in that it has one annular terminal; the other is,IT-shape, the orifice of which limits the rotation of the handle to less than 180 degrees.

8. I am unable to find from the evidence that plaintiffs’ switch with its ball bridging conductor possesses any advantage over earlier means of making and breaking electric switches on currents of small voltage such as is illustrated by Douglas’ device. Plaintiff testified that the cost of manufacturing his switch was 10 per cent, to 20 per cent, less than the old style, but this apparently results, not so much from the novel construction, as from the materials of which it is made.

No. 1,888,444.

9. This patent relates to toggle switches and carries five claims, all of which are more or less involved. Claims 1 and 5 are the claims said to be infringed by several of defendant’s switches. Claim 1 is as follows:

“1. A toggle switch comprising a tubular casing having means for attachment to a support and provided at its outer end with an internal ball seat and an oblong guiding slot in said seat; a hand piece including a ball portion adapted to turn on said seat, and a handle portion movable in a predetermined path in the guiding slot; a bridging conductor carried by said ball portion and pressed outwardly by a spring in a radial guiding reeess therein, gap separated terminals provided with circuit wire-engaging means and including an inner and an outer terminal, said terminals being formed and arranged to contact simultaneously with the bridging conductor when the hand piece is in a given position, only the inner terminal contacting with the conductor when the hand piece is in another position; and insulating confining means for said terminals, fixed to the inner end portion of the casing and to said terminals, and insulating the terminals from each other and from the casing.”

10.Claim 5 differs only in two respects. It specifies a spherical bridging conductor and a detent on the inner terminal. Claims 2, 3, land 4 cover details of construction in the ball seat and with respect to the terminals and insulating members. These claims are also alleged to be infringed by some one of defendant’s switches.

11. The patented switch may be described as a toggle switch comprising a casing having the usual rocking lever or hand piece mounted for oscillation in an oblong guiding slot and provided with a spring-pressed spherical bridging conductor; a base of insulating material carrying one central and two outer contacts so arranged that the ball conductor may be engaged with the central and one outer terminal to close the circuit and with only the central terminal to open it. The central terminal shows a detent to hold the conductor in place when in its “off” position.

12. The defendant has cited against this patent prior patents covering toggle switches which embody the essential elements of plaintiffs’ device and which are designed for use in autos, radios, etc., with a circuit of low voltage. I refer to Preston, U.

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Bluebook (online)
7 F. Supp. 898, 1934 U.S. Dist. LEXIS 2050, Counsel Stack Legal Research, https://law.counselstack.com/opinion/batcheller-v-henry-cole-co-mad-1934.