Bliss & Laughlin Industries, Inc. v. Bil-Jax, Inc.

356 F. Supp. 577, 176 U.S.P.Q. (BNA) 119, 1972 U.S. Dist. LEXIS 13764
CourtDistrict Court, N.D. Ohio
DecidedMay 15, 1972
DocketCiv. C 71-45
StatusPublished
Cited by3 cases

This text of 356 F. Supp. 577 (Bliss & Laughlin Industries, Inc. v. Bil-Jax, Inc.) is published on Counsel Stack Legal Research, covering District Court, N.D. Ohio primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Bliss & Laughlin Industries, Inc. v. Bil-Jax, Inc., 356 F. Supp. 577, 176 U.S.P.Q. (BNA) 119, 1972 U.S. Dist. LEXIS 13764 (N.D. Ohio 1972).

Opinion

*578 OPINION

FINDINGS OF FACT AND CONCLUSIONS OF LAW

DON J. YOUNG, District Judge:

This is an action in which the plaintiff claims that the defendant is infringing U.S. Patent No. 3,190,405 for an extendable shore. This patent was originally issued to R. K. Squire, and later assigned to the plaintiff. The plaintiff seeks an injunction restraining the defendant from further infringing the patent, and damages for the past infringement.

The defendant denies both the validity of the patent, and that it has infringed it, and by counterclaim seeks a declaratory judgment of invalidity and non-infringement.

The matter was heard upon the issues of validity and infringement, with any issue of damages being reserved for further hearing.

As patent eases go, this one appears to be rather simple. The patent in suit deals with shoring scaffolding. As distinguished from ordinary scaffolding, which is designed and intended only to support workmen, materials and equipment, none of which is very heavy, shoring scaffolding is designed to carry very heavy loads when building structures of concrete, especially bridges and large buildings such as sports arenas and public buildings.

The application for the patent in suit was filed June 30, 1961, and the patent was issued June 22, 1965. It was agreed that only claims one, two, five, six, and seven of the patent are involved in the present dispute. It was stipulated that the plaintiff is the owner of the patent in suit, with all rights to recover for past infringement thereof.

The evidence showed that the use of shoring scaffolding did not become commercially of any great importance until in the nineteen-fifties, and that great impetus to its use was given by the federal interstate highway programs.

R. K. Squire, the patentee of the patent in suit, had developed a considerable business in this area in the western states doing business as Superior Scaffold Company. The plaintiff was and still is one of several manufacturers who sell and lease scaffolding, as is the defendant, and another concern known as the Safway Steel Products Company. This last company was later purchased by A-T-O, Inc.

Sometime in early 1965, the Superior Scaffold Company licensed Safway Steel Products to manufacturer, sell, and lease the scaffolding made under the patent in suit, which was being marketed under the trade name of “Shore-‘X’ ”. Late in 1967 the plaintiff bought all of the outstanding stock of Superior Scaffold Company, and thus became the owner of that corporation and all its assets, including the patent in suit. Thereafter the plaintiff extended for a limited time the license to A-T-O, Inc., as successor to Safway Steel Products.

A man named Leonard C. Ellis was employed by Safway Steel Products from 1962 until the end of November, 1968, as a salesman. As such, - he had secured large contracts for the leasing of shoring scaffolding for a new post-office being constructed in Richmond, Virginia. His employer apparently did not have available as much Shore-“X” scaffolding as was necessary on that, and apparently other, large projects. Ellis left his employer and went into business for himself. To do so, he needed scaffolding which could be used interchangeably with the Shore-“X” scaffolding. He engaged the defendant to manufacture various components of scaffolding which could be so used.

Essentially the Shore-“X” system, which is described in detail in the patent in suit, consists of base units four feet wide and six feet high, extension units four feet wide and five feet high, the legs of which slide into the legs of the base units, cross-braces, and adapter pins. There are other components of the system which are of no consequence.

*579 The extension units have so-called “tie-pins” at the top outside. The base units also have tie pins at both top and bottom inside. The adapter pins fit into evenly spaced holes in the legs of the base unit. The tie pins and adapter pins are connected by the cross braces. Whether the extension units are raised to their highest elevation, or lowered to their lowest elevation, the distance between the tie pins and adapter pins remains constant. Thus it is possible to erect support scaffolds of varying heights, always very strongly cross-braced with superior load carrying characteristics, and using cross-braces of uniform length.

Before this system was invented by Mr. Squire, the patentee, it was necessary to have scaffolding units of many different sizes in order to have sufficient load-bearing capacity. The idea of telescoping extension scaffolding was not novel, but it was impractical for heavy load-bearing, as the capacity decreased very rapidly as the extensions were drawn out to their full height. The Shore-“X” system would carry ten percent more load with twenty percent less scaffolding, and is much more quickly erected and adjusted than the types in use before it was developed. The essential cross-bracing is much simpler and more effective than any previous types of scaffolding.

In order to avoid the appearance of infringing upon plaintiff’s patent, the units manufactured and sold by the defendant were slightly different than those described in the patent. There is only one tie pin on the top of each leg of the extension units instead of two. The adapter pin has only one exterior pin protruding instead of two. The holes in the base unit are drilled at right angles to the plane of the unit, instead of being drilled in that plane.

It is clear beyond question that the placement of the holes on the front rather than on the edge of the base unit makes absolutely no difference in the function. It is equally clear that the lack of tie pins on the extension units and adapter pins does not in any way prevent these items from being used interchangeably with Shore-“X” components. All that it does is to make impossible the use of end cross-braces.

The defendant offered in evidence photographs and corresponding drawings illustrating a number of ways in which the units which it manufactured and sold to Mr. Ellis could be assembled so that the claims of the patent in suit would not read upon them. It is, however, clearly apparent that most, if not all, of such uses are unstable and incapable of bearing safely the heavier loads which the patented scaffolding is designed for.

The defendant offered some prior art patents and uses which it claims antedate the patent in suit, and were not considered by the patent examiner in the issuance of the patent in suit. The greatest emphasis was upon the Higgs patent, British patent No. 338,711, and the Carrick patent, U. S. patent No. 591,208. There was also some reference to the Schieffer patent, British patent No. 493,181, and a device illustrated in a magazine article published in March, 1960, defendant’s Exhibit S.

It is clear that all of these patents and devices are essentially irrelevant to the patent in suit. It is, of course, true that all of them use telescoping extensions to vary the height of the scaffolding, but the patent in suit itself points out that this is not a novel idea. The Higgs and Schieffer patents are concerned primarily with folding scaffolding for supporting workmen. They obviously could not be, and were not intended to be, shoring scaffolding.

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Bluebook (online)
356 F. Supp. 577, 176 U.S.P.Q. (BNA) 119, 1972 U.S. Dist. LEXIS 13764, Counsel Stack Legal Research, https://law.counselstack.com/opinion/bliss-laughlin-industries-inc-v-bil-jax-inc-ohnd-1972.