LandOfFree - US Patents - Listing for Expansible chamber devices

Expansible chamber devices – With cushioning means effective over a portion only of stroke

Ocean floor dredge system having a pneumohydraulic means suitabl

Expansible chamber devices – Piston – Open-ended hollow skirt type

Oil control ring and groove arrangement for improved blowby cont

Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means

Oil cooled piston

Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...

Oil cooled piston

Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...

Oil cooled piston rings

Expansible chamber devices – With differential radial thrust producing means for working... – Fluid pressure type

Oil damped piston

Expansible chamber devices – Fluid conduit in constant communication with relatively...

Oil infeed device for an adjustable pitch propeller

Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means

Oil passage arrangement in a piston

Expansible chamber devices – Moving cylinder

Oil porting system for dual cylinder vibrator

Expansible chamber devices – Cylinder detail

Oil pressure cylinder with prolonged adjusting ring

Expansible chamber devices – With fluid purifying means – Means separates gas from liquid

Oil separation and gas pressure equalizer means for reciprocatin

Expansible chamber devices – Displacement control of plural cylinders arranged in... – Having motor-operated adjustment

Oil well sub-surface pump stroke extender

Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...

Oil-cooled piston for a heat engine

Expansible chamber devices – Piston – Nonmetallic portion

Oil-free/oil-less air compressor with an improved seal

Expansible chamber devices – Plural unitarily mounted cylinders or frame therefor – With casing or support for rotary shaft

Oilless high pressure pump

Expansible chamber devices – Piston – Open-ended hollow skirt type

Oilless reciprocating fluid machine

Expansible chamber devices – Piston – Side wall portion includes peripheral axially extending...

Oilwell swab cup

Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...

One piece piston with supporting piston skirt

Expansible chamber devices – With guide or seal on cylinder end portion for piston or...

One Piece rear seal for servomotor