Inventor

DONAHUE RAYMOND J

US52 patents

⚠️ This page may combine multiple inventors who share the name “DONAHUE RAYMOND J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DONAHUE RAYMOND J

BRUNSWICK CORP

Aluminum-silicon alloy having reduced microporosity

Hypoeutectic aluminum-silicon alloy having reduced microporosity

Cylinder bore liner and method of making the same

Internal combustion engine having a hypereutectic aluminum-silicon block and aluminum-copper pistons

Hypereutectic aluminum-silicon alloy having refined primary silicon and a modified eutectic

Evaporable foam pattern for use in casting a crankshaft

Hypereutectic aluminum silicon alloy

Evaporable foam casting system utilizing a hypereutectic aluminum-silicon alloy

Method and appparatus for producing titanium

Restoration process for porosity defects in high pressure die cast engine blocks

Aluminum-silicon alloy having reduced microporosity and method for casting the same

Method of lost foam casting of aluminum-silicon alloys

Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys

Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys

Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys

Hypereutectic aluminum-silicon casting alloy

Vacuum lift foam filled casting system

Method and apparatus for casting of metal articles using external pressure

Method of producing salt cores for use in die casting

Method for continuous manufacturing of cast articles utilizing one or more fluidized beds for heat treating and aging purposes

Aluminum-silicon casting alloy having refined primary silicon due to pressure

Method of casting hypereutectic aluminum-silicon alloys using an evaporable foam pattern and pressure

Evaporable foam casting system utilizing an aluminum-silicon alloy containing a high magnesium content

Method of casting hypereutectic aluminum-silicon alloys using a salt core

Vacuum lift foam filled casting system

Vacuum lift foam filled casting system

Hypereutectic aluminum-silicon casting alloy

Nickel containing hypereutectic aluminum-silicon sand cast alloys

Restoration process for porosity defects in metal cast products

Method of expendable pattern casting using sand with specific thermal properties

Method of expendable pattern casting of hypereutectic aluminum-silicon alloys using sand with specific thermal properties

Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys

Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys

Slides and expendable cores for high pressure die cast closed deck engine block

Method and apparatus for avoiding erosion in a high pressure die casting hot sleeve for use with low iron aluminum silicon alloys

Method of cleaning and of heat treating lost foam castings

Hypereutectic aluminum-silicon alloy connecting rod for a two-cycle internal combustion engine

Method and apparatus for producing titanium

Two-cycle marine engine having aluminum-silicon alloy block and iron plated pistons

Investment cast stainless steel marine propeller

Apparatus and improved method for lost foam casting of metal articles using external pressure

Method for solution heat treating with pressure

Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys

Slides and expendable cores for high pressure die cast closed deck engine block

Slides and expendable cores for high pressure die cast closed deck engine block

Congruent melting salt alloys for use as salt cores in high pressure die casting

Nickel containing hypereutectic aluminum-silicon sand cast alloy

Hypereutectic aluminum-silicon cast alloys having unique microstructure

CLEARY TERRANCE M

Method for manufacturing a connecting rod for an engine

MORASCH KEVIN

Restoration process for porosity defects in metal cast products