MEMORANDUM OPINION AND ORDER
In this divеrsity products liability action, plaintiffs brought suit against defendants Hy-Temp Manufacturing, Inc. (“Hy-Temp”), the manufacturer of a furnace vent damper, and Therm-O-Disc, Inc. (“Therm-O-Disc”), a manufacturer of a component part for the damper. The plaintiffs’ second amended complaint alleges that they suffered carbon monoxide exposure when the vent damper installed in their home failed to function and allowed a buildup of carbon monoxide. Therm-O-Disc has now moved for summary judgment, asserting that the plaintiffs have failed to identify any unreasonably dangerous or defective condition in the component they manufactured. For the reasons set forth below, Therm-O-Disc’s motion for summary judgment is denied.
Background
The allegedly defective product in this suit is called the “Heatnapper.” The Heat-napper, designed by James Barth and manufactured by Hy-Temp under a license agreement with Barth, is a thermally activated vent dаmper. A vent damper “mounts in the vent pipe on the chimney side of the draft diverter of a gas-fired applicance, such as a furnace.” Statement of Uncontested Facts ¶ 8. In general, a vent damper is designed to save energy by closing the vent when the furnace shuts off, so that the warm air inside will not escape to the outside. A thermally activated vent damper like the Heatnapper opens when it is heated, for example, when the furnace is on, and closes when it is cooled.
The opening and closing of the vent damper was controlled by a heat-sensitive helical coil. As а back-up system, Hy-Temp used a heat-sensitive switch manufactured by Therm-O-Disc. Therm-O-Disc’s switch contains a “bimetal disc” composed of two different alloys of stainless steel. The particular bimetal disc used in the Heatnapper was enclosed in a metal casing, although Therm-O-Disc also made discs that are not enclosed but exposed. The two alloys in the bimetal disc have different coefficients of expansion, meaning that they expand at different rates when heated. Because the two alloys have different coefficients of
The Therm-O-Disc switch was placed on the outside of the Heatnapper, next to a hole about the size of a quarter, through which heated gases could flow. In theory, if the damper in the Heatnapper failed to open, then the gases would esсape out the hole and heat the Therm-O-Disc switch. The heat would cause the bimetal disc in the switch to curve, and the curved disc would push a plunger. The plunger in turn was to open an electrical circuit, and this would have shut off the flow of the gas to the furnace. This is how the switch on the Heatnapper should have worked, but there is some dispute as to what actually happened.
A Heatnapper, Model GVD1-6, Serial No. 69622, with a Therm-O-Disc heat-sensitive switch, was installed at the home of plaintiff John Gannon in August 1981. Starting about November 25, 1981 until December 19, 1981, plaintiffs John Gannon, Mary Anne Gannon, Paul Gannon and Mark Carey, all оf whom resided at the Gannon home, experienced headaches, nausea and flu-like symptoms. On December 19, 1981, plaintiff Wannetta Carter, who was employed in the Gannon home as a nurse, was hospitalized after becoming ill. Carbon monoxide concentrations were detected in her blood. The Gannons were alerted, and, after being tested, carbon monoxide concentrations were discovered in their blood also. The same day, the Heat-napper on the Gannon furnace was removed.
Carey, Carter and the Gannons brought suit against Hy-Temp in November 1982, and the suit was assigned to Judge George N. Leighton, who has since retired. In December 1983, the plaintiffs amended their complaint to include Therm-O-Disc and other defendants, but no claims against any of these other defendants remain. As amended, the plaintiffs’ complaint alleges that the Heatnapper stuck in the closed position around November 25, 1981, and remained closed until it was removed on December 19, 1981. The plaintiffs advance various theories to explain why the Heatnapper failed to open, but for the purposes of this motion, these theories are not important. What is important is the plaintiffs’ allegation that the Therm-O-Disc switch did not perform as intended and failed to shut off the furnace, even though the damper did not open. The plaintiffs allege that as a proximate result of the switch’s failure to shut off the furnace, an abnormally high concentration of carbon monoxide built up in the Gannon home, which led tо the plaintiffs’ carbon monoxide poisoning.
In April 1985, the parties filed their final pretrial order, and Hy-Temp and Therm-O-Disc filed cross-claims for contribution against each other. In July 1986, after plaintiff Mark Carey died, the plaintiffs’ complaint was amended for a second time to replace Mark Carey with Shаron Carey, the administrator of his estate. The second amended complaint also deleted all defendants except Hy-Temp and Therm-O-Disc, but is otherwise substantially the same as the first amended complaint. In December 1987, after Judge Leighton left the bench, this cause was reassigned to our calеndar, and in June 1988, defendant Therm-O-Disc brought the motion for summary judgment that we consider in this opinion. 1
Summary Judgment
Under the Federal Rules of Civil Procedure, summary judgment is appropriate if “there is no genuine issue as to any material facts and ... the moving party is entitled to a judgment as a matter of law.” Fed.R.Civ.P. 56(c). This standard places thе initial burden on the moving party to identify “those portions of ‘the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any,’ which it believes demonstrate the absence of a genuine issue of material fact.”
Celotex Corp. v. Catrett,
Products Liability
The Illinois courts
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have adopted the doctrine of strict products liability found in section 402A of the Restatement (Second) of Torts.
Suvada v. White Motor Co.,
Therm-O-Disc asserts, however, that there is no evidence that its component was defective and thus moves for summary judgment as a matter of law. Therm-O-Disc does not seriously contend that its switch turned off the furnace in thе Gan-non home. Rather, it contends that the switch would have worked, but that the design of the Heatnapper never allowed the switch to do its job. Specifically, Therm-O-Disc notes that Barth mounted the switch on the outside of the Heatnap-per, next to a small hole. As noted previously, if the damper in the Heatnapper failed to open, then in theory the gases would escape out the hole and heat the Therm-O-Disc switch, which should have shut off the furnace. However, because the switch was mounted on the outside, cooler room air could flow around it and dilute the temperature of the fluе gases escaping from the Heatnapper. The parties refer to the difference in temperature between the inside and outside of the Heat-napper as a “thermal lag.” According to Therm-O-Disc, the real defect was this thermal lag; the Therm-O-Disc switch would have worked fine if it had been givеn the chance.
Therm-O-Disc notes that five experts tested the switch after the Heatnapper was removed from the Gannon home. According to Therm-O-Disc, all five experts found that the switch “functioned,” that is, that the switch opened when heated. Therm-O-Disc’s 12(e) Statement ¶ 14. Moreover, Donald Schmitt, a Therm-O-Disc engineer and one of the five experts, found that the switch opened at 252.1°F, well within the range specified by Barth and Hy-Temp, 250°F plus or minus 6°F.
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The plaintiffs argue that the deposition testimony presented by Therm-O-Disc does not clearly show that the switch “functioned” as it should have, but we disagree. All five experts testified that the Therm-O-Disc switch opened when heated.
See
Barth Dep. at 149. (“It turned off fine when I tested it, or it turned off the appli-
Therm-O-Disc argues that this should be the end of our inquiry. According to Therm-O-Disc, the manufacturer of a component part should not be held liable if it supplies the component according to the purchaser’s specifications, even if the purchaser subsequently assembles the part in a way that creates an unreasonably dangerous condition. As a general rule, this is true.
See Loos v. American Energy Savers, Inc.,
168 Ill.App.8d 558, 563,
We conclude that the evidence produced by the plaintiffs is sufficient to survive summary judgment. Plaintiffs’ evidence suggests that Therm-O-Disc influenced the design of the Heatnapper. For example, in 1979, a Therm-O-Disc salesman visited the Hy-Temp plant and reported in a memorandum that he had recommended an enclosed bimetal disc, rather than an exposed one. Plaintiffs’ Exh. 46. (Apparently the salesman recommended the enclosed disc because the exposed disc could be contaminated by gases from the vent.) In addition, the salesman recommended silver contacts with gold overlays.
Id.
Likewise, in a later memorandum, a different Therm-O-Disc salesman indicated that he had consulted with the Hy-Temp plant manager and then stated, “The incorрoration of leads into our 44T device would be most desireable [sic] so I would like for Chuck Eaton to review this with Engineering to see if this can be accomplished.”
Moreover, the first sales memorandum referred to above indicates that Therm-O-Disc knew from the start how its switch would be used. The salesman described the Heatnapper this way: “The 60T manual reset (safety switch) is mounted on the side of the vent over an open hole. If for some reason the damper did not open, the heated fuеl gases would go through the hole heating the disc case. The 60T manual reset is calibrated at about 250°F.” Plaintiffs’ Exh. 46. This memorandum indicated that Therm-O-Disc knew that the switch would be mounted on the side, and the plaintiffs’ expert testified in his deposition that this was one of the defects in the Heatnapper. Bambenek Deр. at 76 (“The best solution to the problem is relocating the Therm-O-Disc from the Heatnapper itself, to the bottom of the draft diverter, so that the safety switch cuts off the burner when an excess of amount of exhaust gases are discharged into the basement.”). Accordingly, a jury could conclude that the Therm-O-Disc switch was defective for a known use, and summary judgment is therefore inappropriate. 4
Conclusion
For the foregoing reasons, Therm-O-Disc’s motion for summary judgment is denied. It is so ordered.
Notes
. It is not clear why Therm-O-Disc waited more than three years after the pretrial order was filed to move for summary judgment.
. The parties correctly assume that Illinois law applies to this case. Under the Illinois choice of law rules, which we must apply while sitting in diversity, the law of the state where the injury occurred applies in a tort case, unless Illinois has a more significant relationship with the occurrence and with the parties.
Ingersoll v. Klein,
. The plaintiffs argue that the materials filed for this motion do not clearly show that Barth and Hy-Temp specified the temperature range. We disagree. Barth stated in his deposition that he gave Therm-O-Disc "the manufacturer’s and temperature requirements.” Barth Dep. at 53. The plaintiffs have not pointed to any evidence to indicate that Therm-O-Disc had any input into the selection of the temperature range, so we must conclude that it was selected by Barth and Hy-Temp.
. In an attempt to bolster their case, the plaintiffs included an affidavit from their expert, which was executed after this Court closed discovery and apparently only after Therm-O-Disc moved for summary judgment. Therm-O-Disc argues that we should disregard this affidavit since it was executed after the end of discovery. In deciding this motion, we did not consider the affidavit, so we need not decide the issue.
