Legal Opinion
National Sweeper Co. v. Bissell Carpet Sweeper Co.
District Court, S.D. New York
Decided March 20, 1917PublishedCited by 2 opinions
In Equity. Suit by the National Sweeper Company against the Bissell Carpet Sweeper Company for infringement of letters patent No. 1,138,437, for a pneumatic sweeper, issued to Baender May 4, 1915. On final hearing. Decree for defendant.
1Opinion of the Court
MAYER, District Judge.
“This invention” Baender states, “relates to a carpet sweeping appliance operating by atmospheric pressure to draw in and gather the dust and ‘sweepings’ from a carpet while the appliance is moved over its surface. The carpet sweeper of my invention operates on the principle of producing a continuous suction or exhaustion of. the air in a closed receptacle sufficiently below the normal pressure of the atmosphere to induce an inflow of air through a slit or nozzle, and thereby draw the dust and sweepings into the receptacle as the appliance is moved over the carpet. The…
2Cases cited3 opinions
- Vacuum Cleaner Co. v. Innovation Electric Co.Court of Appeals for the Second Circuit · 1916
- Vacuum Cleaner Co. v. American Rotary Valve Co.District Court, S.D. New York · 1915
- Vacuum Cleaner Co. v. Innovation Electric Co.District Court, S.D. New York · 1916
3Cited by2 opinions
- Domestic Vacuum Cleaner Co. v. Bissell Carpet Sweeper Co.District Court, S.D. New York · 1917
- Vacuum Cleaner Co. v. Bissell Carpet Sweeper Co.District Court, S.D. New York · 1917