United States Light & Heating Co. v. Safety Car Heating & Lighting Co.

Citations

• 191 F. 846
• 1911 U.S. App. LEXIS 5541

Syllabus

<p>Patents (§ 328*) — Validity and Infringement — Brush Mechanism foe Dynamos.</p> <p>The Bliss patent, No. 707,754, for brush mechanism for dynamos, es-' pecially applicable to dynamos used for the electric lighting of railway trains and designed to provide automatically for the constant polarity of .a dynamo notwithstanding reversal of direction of rotation, covers a. , combination of elements none of which were new, but shows improvements which constitute a substantial advancement on the prior art and involve patentable invention, although limited to the particular device shown. As so construed and limited, held not infringed.</p>