Ajax Hand Brake Co. v. Superior Hand Brake Co.

SPARKS, Circuit Judge.

Plaintiffs, Ajax Hand Brake Company and Richard W. Burnett, charged defendant, Superior Hand Brake Company, with infringement of six patents to Burnett.1 After a hearing the District Court dismissed the bill of complaint for want of equity, holding that all the claims in each patent were invalid for lack of invention under the prior art. Some of the contested claims were held to be infringed and others were held not to be infringed. These will be designated under the discussion of the particular patent to which they apply.

For the sake of brevity, the patents will be…