Leander Development Corp. v. Taft-Buick Corp.

42 F.2d 823, 6 U.S.P.Q. (BNA) 282, 1930 U.S. App. LEXIS 4354
CourtCourt of Appeals for the Second Circuit
DecidedJuly 7, 1930
DocketNo. 380
StatusPublished
Cited by3 cases

This text of 42 F.2d 823 (Leander Development Corp. v. Taft-Buick Corp.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Second Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Leander Development Corp. v. Taft-Buick Corp., 42 F.2d 823, 6 U.S.P.Q. (BNA) 282, 1930 U.S. App. LEXIS 4354 (2d Cir. 1930).

Opinion

MANTON, Circuit Judge.

Both plaintiffs and defendant appeal. Plaintiffs appeal from -that part of the decree holding patent No. 1,275,654, granted August 13, 1918, for temperature indicating means for motorcars, invalid, and defendant appeals from that part holding patent No. 1.206.783, granted November 28, 1916,. for temperature indicating system and apparatus for internal combustion engines, valid and infringed.

The patents were issued to Boyce, who assigned them to the Leander Development Corporation, and the Motometer Company, Inc., is the exclusive licensee. Patent No. 1,275,654 was a broad grant. No. 1,206,783 was granted as a division of an earlier application filed June 20, 1914.

No. 1,275,654 shows a thermometer of the liquid column type mounted in the filler cap of an automobile radiator with the bulb located about two-thirds of the way down in the filler neck. In operation, the thermometer bulb is located in the air space above the water in the radiato'r. The indicating columns of the thermometer project above the radiator cap so as to be visible and readable to one sitting in the driver’s seat. Claims 4 and 5 of this patent are in suit. ^They provide (claim 4) means for indicating the thermal condition of the engine of an automobile having an internal combustion engine provided with a liquid circulation cooling system comprising the combination (1) with the cooling system (2) of an indicating device (a) having an indicating part readable from the driver’s seat of the automobile (b) and having a temperature responsive element located in a position to be influenced by changes of temperature within the cooling system. Claim 25 provides:

“In combination with a vehicle, having an internal combustion propelling motor, a fluid containing means associated therewith so as to be influenced by temperatures of the motor structure and means for showing normal and undesirable conditions of the power plant, comprising a part mounted in temperature-responsive relationship to the fluid-containing means to be controlled by the changes in the temperature of said motor structure, and a sight indicator part associated with said first mentioned part, adapted to be affected by the changing temperature conditions of the latter and located to be read by the operator of the vehicle while driving the same, said indicator part being adapted to present varying indications normally to serve as a guide for the operator in driving the motor at proper temperatures and abnormally as a warning to prevent or overcome undesirable conditions in the power plant.”

Patent No. 1,206,783 covers the use of a distant reading thermometer to indicate the temperature of the water in the engine cooling system with the bulb inserted in the cooling water in the pipe leading from the cylinder jackets to the top of the radiator and the dial mounted on the instrument board of the ear. All claims are in suit, but claim 2 is typical, and is as follows:

“2. In temperature indieating means for water cooled internal combustion motors of motor vehicles, the combination with a motor and the ’ water circulation cooling system thereof, of a temperature-responsive element located in said system above the level of the hottest part of a motor cylinder, and in a position to be normally in contact with the cooling liquid after it has been heated by such hottest part, and to be subjected to contact with any steam which may be generated in the system due to the heat in the cylinder, and temperature-indicating means observable by the driver when operating the vehicle, said temperature indicating means being controlled by the temperature of said temperature-responsive element.”

Boyce was granted a third patent No. 1,090,776, on March 17, 1914, which has been sustained [Boyce v. Stewart-Warner Speedometer Corp., 220 F. 118 (C. C. A. 2); Pyrene Mfg. Co. v. Boyce. 292 F. 480, 481 (C. C. A. 3); Id., 1 F.(2d) 185 (C. C. A. 3)] on the theory that there was invention in the particular location- of this thermometer bulb — putting it in the air space above the water rather than direetly in the water of {he cooling system. The so-called “quick jump action” of the thermometer was the dominant and vital characteristic of this invention (No. 1,090,776) as the courts held. In the patents in suit, the thermometer indicator re[825]*825cords the water temperature as it warms up or cools down in the cooling system.

We think the court below properly held claims 4 and 25 of patent No. 1,275,654 invalid because of Fowler’s earlier conception. Fowler’s patent was granted November 9, 1915, on an application filed February 24, 1913. His filing date was four months subsequent to the filing date of the first Boyce application, October 17, 1912, hixt Boyce offered no substantial proofs to cany back his date of invention. Defendant, however, offered evidence of many witnesses and record proof carrying Fowler’s date of invention back to September, 1911. Fowler disclosed a conventional water cooling system for an automobile engine and the thermometer well mounted on the dash. The well was a hollow cylinder connected by tubes with the intake water manifold and the outlet water manifold respectively of the water cooling system. The result of thus connecting the thermometer well is that the water in the circulating* system is by-passed through it. As the temperature of the water in the cooling system varies, the temperature of the water that is by-passed varies also, and therefore the temperature of the water in the well is an index to the temperature of the water in the cooling system. To determine the temperature of the water in the well, Fowler provided an ordinary glass liquid column thermometer which was mounted on the well with a bulb in the water thereof and the column located on the dash so as to be visible from the driver’s seat. It is clear that part of the water in the circulating system of Fowler’s device passed in and out of the well and the thermometer indicated the temperature of the water in the well. Whether or not this was the most effective means of determining the temperature of the water in the system or reporting troubles . that might arise in the circulating system, the claims in suit are of broad terminology, and Fowler came within them, for he provided means for indicating the thermal condition of the engine of an automobile having an internal combustion engine provided with a liquid circulating cooling* system, comprising a combination with the cooling system of an indicating device having an indicating part readable from the driver’s seat of the automobile and having a temperature responsive element located in a position to- be influenced by changes of temperature within the cooling system. Fowler describes his plan in the patent granted to him. He also establishes the date of construction and beginning the use of his equipment, by his testimony, as early as September, 1911, about a year prior to the earliest date of Boyce. This is sufficient to support the defense of invalidity because' of such prior conception and practice by Fowler, and invalidates this patent in suit. The court below properly held prior conception was established.

We are also of the opinion that No. 1,-206,783 is shown by this record to be invalid because of the prior use disclosed by the Locomobile Company use. In 1910, the Industrial Instrument Company of Foxboro, Mass., manufactured distant reading thermometers of the vapor pressure type.

Free access — add to your briefcase to read the full text and ask questions with AI

Related

Tropic-Aire, Inc. v. Cullen-Thompson Motor Co.
107 F.2d 671 (Tenth Circuit, 1939)
Minnesota Mining & Mfg. Co. v. Coe
99 F.2d 986 (D.C. Circuit, 1938)
H. K. Regar & Sons, Inc. v. Scott & Williams, Inc.
63 F.2d 229 (Second Circuit, 1933)

Cite This Page — Counsel Stack

Bluebook (online)
42 F.2d 823, 6 U.S.P.Q. (BNA) 282, 1930 U.S. App. LEXIS 4354, Counsel Stack Legal Research, https://law.counselstack.com/opinion/leander-development-corp-v-taft-buick-corp-ca2-1930.