Victor E. Baum v. Jones & Laughlin Supply Co., and Cabot Shops, Inc.

233 F.2d 865, 109 U.S.P.Q. (BNA) 402, 1956 U.S. App. LEXIS 5386
CourtCourt of Appeals for the Tenth Circuit
DecidedMay 24, 1956
Docket5213_1
StatusPublished
Cited by13 cases

This text of 233 F.2d 865 (Victor E. Baum v. Jones & Laughlin Supply Co., and Cabot Shops, Inc.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Tenth Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Victor E. Baum v. Jones & Laughlin Supply Co., and Cabot Shops, Inc., 233 F.2d 865, 109 U.S.P.Q. (BNA) 402, 1956 U.S. App. LEXIS 5386 (10th Cir. 1956).

Opinion

*867 PICKETT, Circuit Judge.

Victor E. Baum, the owner of Patent No. 2,273,342, brought this suit for damages, alleging in the first cause of action an infringement of the patent which relates to an adjustable mounting for a horsehead used on walking beams employed on pumps in oil fields. In the second cause of action, it is alleged that the defendant, Cabot Shops, Inc., incorporated in its oil pumping equipment a feature of the patent which had, prior to patent, been disclosed to its officials in confidence. The subject matter of each cause of action is the same.

One of the defenses was that the patent was invalid because its teachings were anticipated by the prior art and did not constitute an invention. The trial court found that the structure defined in the claims of the patent was known and in public use for more than two years prior to the filing of the application for patent on August 29, 1936. 1

As to the second cause of action, the court found that Baum’s apparatus was known to the public before any disclosure was made to the defendants. This is an appeal from the judgment dismissing the complaint.

The patent discloses an improved pump jack with an adjustable horsehead for use on pumping equipment in oil fields, which is designed to impart a straight-line vertical movement to the pump rods, resulting in a minimum of wear on the pump rods, packing, and other parts of the equipment. It is designed to move an oil well pump rod up and down in a vertical manner, as is necessary for efficient operation of the conventional pump. This is accomplished by a supporting block on the end of a walking beam, having a curved upper surface over which a mating curved surface of the horsehead fits, permitting a rotation when the securing bolts are loosened. 2 The upper end of the pump rod passes through a stuffing box forming a pressure-tight seal at the casing-head. This portion of the pump rod is called a “polish rod”.

We are concerned here only with the adjustable horsehead on the pump jack which is employed to move the pump rod up and down. The pump jack, as it is described in the patent, is the ordinary pump jack frame mounted on a concrete base supporting at its top point a bearing saddle, or fulcrum, which provides a pivoted mounting for a horizontal walking beam. One end of the beam is connected with the source of power and the other end to the upper portion of the polish rod. When power is applied, the ends of the walking beam move up and down in an arc, the center of which is the saddle bearing on top of the jack frame. This up and down movement, through the pump rods, causes a reciprocation of the pump piston in the bottom of the well.

It was obvious to engineers that some method was necessary to cause the polish rod to move up and down in a vertical plane, rather than follow the arc made *868 by the end of the beam. To remedy this difficulty, there was introduced into the art an arcuate segment, known as a “horsehead”, which was fastened to the end of the beam, immediately above the polish rod. The horsehead was attached to the polish rod by two flexible steel cables which, when the beam was oscillated, rode on the curved face of the horsehead. The cables are free to move, the result being that when the beam is at the bottom of its stroke they rest only on the upper portion of the horsehead, as it moves upward in its stroke the cables meet the face of the horsehead at progressively lower points on its outer face. Consequently, the cables remain vertical with the polish rod.

There are a number of misalignments which may occur between a walking beam and the pump rods. The plaintiff says that all except one may be controlled in the installation of the pump unit. Generally steel “I” beams are used for the walking beams. There are certain manufacturing tolerances in the flanges which cause a slight misalignment when the horsehead is attached. It is this misalignment which Baum contends his patent is designed to remedy. 3 It is contended that the prior art disclosed no method for an adjustment of the horse-head after it was attached to the beam. It is stated that if there were a misalignment of the horsehead caused by manufacturing tolerances in the “I” beam, the cables would not pass over the face of the horsehead parallel to its edges, but at an angle, resulting in the failure to obtain a straight lift when the beam is oscillated; that Baum's patent disclosed, for the first time, a method by which the face of the horsehead could be adjusted, through about three degrees, by the use of bolts in a slot, or in holes larger than the bolts, thereby placing the edges of the horsehead parallel with the polish rod and insuring a vertical lift.

The evidence is undisputed that prior to 1932, the Gulf Oil Corporation manufactured and put in public use, a pump jack which employed a horsehead, adjustable from side to side, to accomplish the same results as the Baum horsehead. The Gulf jack used a tubular beam and the horsehead slipped over the end and was secured with bolts which were inserted in holes larger than the bolts, permitting a lateral adjustment. Referring to the Gulf jack, a competent engineer testified as follows;

“A. These three photographs show one of the Gulf jacks, showing the movement of the horse-head from side to side when the bolt is * * * when the bolts rather that hold it in place on the beam are loosened.
“The Court; Is that the same principle? Now these are the same machines here, 35-A, B, and C, are the type as No. 8, the ones in the front of the book? A. They are. In fact, I believe, Your Honor, one of the same jacks is shown.
“The Court: Same ones? A. Yes, sir.
*869 “The Court: Is the similarity, is this the same principle used there? All I am trying to seek right now is I just want to know the answer to that question. Is this the same principle that is used by that patent of the plaintiff in his two surfaces that fit together? A. It is exactly the same, sir.
“The Court: And any person that would know that this operates this way would know that an I-beam could be operated in the same way?
A. Yes, sir.
“The Court: In other words, it wouldn’t take great skill or I mean any genius to figure that out? A. Not in my opinion.”

The National Supply Company, long prior to Baum’s horsehead, marketed a beam hanger employing a curved upper surface with a mating curved surface, which allowed the hanger to rotate laterally for the same type of adjustment as in Baum’s horsehead.

Baum readily concedes that the elements of his combination were known and used long prior to his invention. It is the combination which he contends is new and patentable. Of course a combination of known elements may bq patentable. As was stated in Lyman Gun Sight Corp. v. Redfield Gun Sight Corp., 10 Cir., 87 F.2d 26, 27:

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Bluebook (online)
233 F.2d 865, 109 U.S.P.Q. (BNA) 402, 1956 U.S. App. LEXIS 5386, Counsel Stack Legal Research, https://law.counselstack.com/opinion/victor-e-baum-v-jones-laughlin-supply-co-and-cabot-shops-inc-ca10-1956.