Products liability doctrine holds a manufacturer, or other party involved in selling a product, strictly liable when an article, placed into the market with knowledge that it is to be used without inspection for defects, proves to have a defect that causes a personal injury. Consumers who are injured because of a fault with a product that the consumers had no ability to protect themselves against may recover against the manufacturer under a theory of products liability.
Wilmerding is a borough in Allegheny County, Pennsylvania, United States. The population was 2,145 at the 2000 census. It is located 12 miles (19 km) southeast of Pittsburgh. At the start of the twentieth century, it had extensive foundries and machine shops of the Westinghouse Air Brake Company. In 1900, the population stood at 4,179 people; in 1910, it stood at 6,133. 5,662 residents were counted in 1940. Wilmerding is only a stone's throw from Turtle Creek, which takes its name from a small stream that flows past both places.