LandOfFree - US Patents - Listing for Pumps

Pumps – Expansible chamber type

Balloon pump

Band drive dual diaphragm pump

Pumps – Ambulant – body supported – or with carrying handle

Barrel fan with enclosed motor

Reexamination Certificate

Pumps – Expansible chamber type – Valved piston

Barrel pump

Barrier fluid seal, reciprocating pump and operating method

Pumps – Processes

Pumps – Motor driven – Internal-combustion engine

Barring adaptor for an engine air compressor

Pumps – Motor driven – Including means for facilitating assembly or disassembly of...

Base and power unit for injection molding machine

Pumps – Expansible chamber type

Base component for a fluid transfer device and method of making

Base frame construction for a liquid ring compressor set

Pumps – Combined

Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver

Basement flash flood control system

Pumps – Condition responsive control of pump drive motor – With plural separate drive motors for single pump unit

Battery driven backup system for an air distribution fan

Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver

Battery monitoring and charging circuit for sump pumps

Pumps – Ambulant – body supported – or with carrying handle

Battery powered fluid transfer apparatus

Battery powered pump

Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...

Bearing air seal for vacuum cleaner motor

Bearing and seal-free blood pump

Pumps – Three or more cylinders arranged in parallel – radial – or...

Bearing arrangement for a swash plate pump

Reexamination Certificate

Bearing arrangement for molten aluminum pumps

Pumps – Motor driven – Fluid motor

Bearing assembly for high speed shaft