LandOfFree - US Patents - Listing for Internal-combustion engines

Internal-combustion engines – Combined devices – Generating plants

Operation of an internal combustion engine with a pre-engine con

Internal-combustion engines – Combined devices – Generating plants

Operation of an internal combustion engine with a pre-engine ref

Internal-combustion engines – Poppet valve operating mechanism – Electrical system

Operation of electrically actuated valves at lower temperatures

Internal-combustion engines – Noncompression

Operation timing control system for an internal combustion engin

Internal-combustion engines – Noncompression

Operation timing control system for an internal combustion engin

Internal-combustion engines – Starting device

Operation unit of engine

Internal-combustion engines – Starting device

Operation unit of engine

Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters

Operational condition control device for an internal combustion

Internal-combustion engines – Two-cycle – Whirl through piston-controlled ports

Operational control device for two-cycle engines

Internal-combustion engines – Engine speed regulator – Idle speed control

Operational control system for engine

Internal-combustion engines – Charge forming device – Heating of combustible mixture

Operational mode responsive heating arrangement for internal com

Internal-combustion engines – Frame construction – Horizontal cylinder

Operator carried power tool having a four-cycle engine

Internal-combustion engines – Frame construction – Horizontal cylinder

Operator carried power tool having a four-cycle engine

Internal-combustion engines – Frame construction – Horizontal cylinder

Operator carried power tool having a four-cycle engine

Internal-combustion engines – Lubricators – Crankcase – pressure control

Operator carried power tool having a four-cycle engine and an en

Internal-combustion engines – Frame construction – Horizontal cylinder

Operator carried power tool having a four-cycle engine and...

Internal-combustion engines – Lubricators – Crankcase – pressure control

Operator carried power tool having a four-cycle engine and...

Internal-combustion engines – Solid fuel

Opposed cross flow primary reactors for cyclic char burning engi

Internal-combustion engines – Multiple piston – common nonrestrictive combustion chamber – Four-cycle

Opposed double piston internal combustion engine