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| Number | Title | Issue Date |
| 5183095 | Means for producing high precision castings The production of high precision molds and castings for dental prosthesis and the like is enhanced with a casting ring and sprue former base constructed of a clear expandable thermoplastic. The ring and base are telescopically interlockable with each othe... | 02/02/1993 |
| 4635817 | Ice cube dispenser An apparatus for making ice cubes includes an ice cube tray and an inner grid core. An outer grid core for the apparatus includes sloped sides and a threaded opening at a top of the outer grid core. The outer grid core is wider than the bottom of the core... | 01/13/1987 |
| 4178338 | Method of casting thin-walled, hollow concrete posts In a method of casting in a horizontal mould a hollow, reinforced tapering concrete post having a thin wall and particularly a length exceeding 10 to 15 m, there is placed in the mould a tapering reinforcing cage or basket in which a core, e.g. a steel co... | 12/11/1979 |
| 3930376 | Ice cube tray A pair of diametrically opposed protuberances, comprising inwardly projecting bumps, extend from the otherwise smooth surface of opposite corners of adjoining side walls of the generally cubical pockets in an ice cube tray. These protruberances, define st... | 01/06/1976 |
