PatentBrief

Inventor

Louis H Roller

Patents indexed

1

Year range

1927

Associated with

Years active

1927

Total patents

1

Most recent

1927

Domains

mechanicalenergymaterials

Activity by decade

1920s
1

Patents

1

Career timeline

1 patents, in 1927

Dot size = forward citations

19271928

Hover or tap any dot to see the patent. Larger dots indicate more forward citations — a proxy for downstream influence.

US 1647147·1927·Individual

How Early Electromagnetic Pumps Moved Liquid Metal Using Magnetic Fields

A 1927 patent for a pump that uses electromagnetic forces to move conductive liquids without needing moving mechanical parts like pistons or impellers.

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