This is аn appeal of plaintiff-appellant Gerald D. Grasmick’s products liability and negligence claims against defendant-appellee, Otis Elevator Company. Mr. Grasmick appeals the trial court’s partial directed verdict which removed the issue of Otis’ negligence from the jury’s consideration. Mr. Grasmick also argues that the trial court should have directed a verdict for him on the ground that the evidence did not support an assumption of the risk instruction. In addition, he contends that the trial court erred in excluding an operаtions manual offered in rebuttal and in other evidentiary rulings.
Mr. Grasmick was an order puller at Associated Grocers, a food distributor located in Denver, Colorado. His work consisted of moving goods stored in the warehouse to the loading docks. He drove a machine manufactured by the Otis Elevator Company in 1974 called a Moto-Truc, a three-wheeled, battery powered cart. The operator stands on it behind a safety bar and steers by using a T-bar. A grip roller gear control box rests on the T-bar. The Moto-Truc has forward, neutral and reverse gears.
The plaintiff was operating a Moto-Truc in a cold storage area and tried to slow down. Instead of slowing, the Moto-Truc went into reverse and he wаs thrown forward into the T-bar. The Moto-Truc then went out of reverse and began to move forward. Mr. Grasmick fell backward. As a result of the Moto-Truc’s shifting, Mr. Grasmick suffered an injured back and оther injuries.
Mr. Grasmick brought this action against Otis Elevator Company alleging that Otis was negligent in failing to warn buyers that the Moto-Truc’s steering and gear mechanisms did not work in the cold and that this prоblem could be alleviated by a heater unit option. He also claimed that Otis was strictly liable for the design, manufacture, assembly and sale of a defective and unreasоnably dangerous product.
In the jury trial at the close of plaintiff’s case the trial court found no evidence of Otis’ negligent failure to warn and directed a verdict for Otis on the nеgligence claim. The issue of strict liability remained. At the close of all the evidence plaintiff moved for a directed verdict on the defense of assumption of the risk. The trial court denied the motion. The jury returned a verdict against plaintiff.
Mr. Grasmick urges that the trial court erred in directing a verdict for Otis on the negligence issue. During the trial plaintiff’s theory on this issue was defendant’s failure to warn customers of the Moto-Truc’s potential for spontaneous shifting in cold storage areas and in failing to inform customers of a heater unit oрtion that could have eliminated this potential malfunctioning. Plaintiff would now have this court consider an additional negligence theory — that Otis negligently designed three componеnts: the T-bar, the gear box and the safety bar. Since a party “generally cannot lose in a trial court on one theory and thereafter prevail on appeal оn a different theory,”
United States v. Lattauzio,
In reviеwing a trial court’s disposition of a motion for a directed verdict, we follow the same federal procedural standards that govern the trial court. A motion for a directed verdict tests “whether there was enough evidence to make an issue for the jury.” C. Wright, The Law of Federal Courts 640 (4th ed.). The trial court “must view the evidence most favorably to the party against whom the motion is made, and give that party the benefit of all reasonable inferences.”
Hurd v. American Hoist & Derrick Co.,
In this diversity case, while the federal standard serves as the procedural measure of the sufficiency of the evidence, Colorado law on negligence provides the substantivе measure.
Hurd v. American Hoist & Derrick Co.,
Negligent failure to warn is one species of negligence. Where a manufacturer or seller “knows or should know of unreasonable dangers associated with the use of its product and not obvious to product users, it has a duty to warn of these dangers; and a breach of this duty constitutes negligence.”
Palmer v. A.H. Robins Co., Inc.,
Mr. Grasmick further argues that the trial judge’s mention that the claim of negligent failure to warn “merges” with the strict liability claim demonstrates that the judge based his directed verdict ruling on a mingling of two tort theories. Strict liability and negligеnce theories are conceptually distinct and may be alleged in the same action.
See, e.g., Palmer v. A.H. Robins Co., Inc.,
In our evaluation of Mr. Grasmick’s assertion that the trial court erred in declining to direct a verdict for him on assumption of the risk and in instructing the jury on the defense, the federal procedural standards we have outlined above test the sufficiency of the evidence while state law controls the underlying substantive issue.
Peterson v. Hager,
In Colorado, assumption of the risk is a defense to strict liability.
Jackson v. Harsco Corp.,
A review of the record reveals that a jury could rationally have determined that Mr. Grasmick voluntаrily and unreasonably proceeded to encounter a known danger. There was evidence that appellant had actual knowledge of the specific danger of the Moto-Truc’s spontaneous reversal. He testified that he had seen the same Moto-Truc in which he was injured spontaneously reverse on several occasions. There was evidence that he voluntarily used the device knowing of the danger of spontaneous reversal. A portion of his deposition used to impeach him at trial indicated that he continued to use the Moto-Truc despite the spontaneous reversals. In another portion of the deposition entered into evidence, Mr. Grasmick stated that he did not report the spontaneous reversal problem to his supervisors. There was evidence that he was unreasonable in persisting to use the Moto-Truc after experiencing its spontaneous reversal.
Mr. Grasmick’s testimony was quite contradictory on the assumption of risk issue and since his testimony was key to the inquiry into his subjective knowledge of thе danger of spontaneous reversal and since his credibility was therefore sharply at issue, a granting of his motion for a directed verdict on assumption of the risk would have beеn inappropriate. In acting on a directed verdict motion, a trial court “is not permitted to consider the credibility of witnesses ... nor may a court weigh the evidence or determine where the preponderance of the evidence lies.”
Martin v. Unit Rig & Equipment Co., Inc.,
We find appellant’s remaining contentions without merit.
The judgment is AFFIRMED.
