Other

Avco Lycoming

Avco Lycoming/subsidiary of Textron, Inc.

Joseph A Goebel

Dan G Rosenthal

A combination of unique properties of (i) high strength and stiffness at temperatures up to about 1500.degree. F., (ii) good room temperature mechanical properties including good ductility and (iii) improved resistance to matrix cracking is achieved in a titanium structure by forming a hybrid titanium alloy matrix composite in which the matrix consists of layers of at least two alloys, i.e. a high temperature-resistant titanium aluminide alloy and a ductile, lower modulus titanium alloy, that are bonded metallurgically to each other in various embodiments. A reinforcing material in the form of filaments, fibers or whiskers, e.g. silicon carbide, can be embedded within either or both types of the titanium layers.

Method for forming titanium aluminide-ductile titanium aluminum alloy

A combination of unique properties of (i) high strength and stiffness at temperatures up to about of 1500.degree. F., (ii) good room temperature mechanical properties including good ductility and (iii) improved resistance to matrix cracking is achieved in a titanium structure by forming a hybrid titanium alloy matrix composite in which the matrix consists of layers of at least two alloys, i.e. a high temperature-resistant titanium aluminide alloy and a ductile, lower modulus titanium alloy, that are bonded metallurgically to each other in various embodiments. A reinforcing material in the form of filaments, fibers or wiskers, e.g. silicon carbide, can be embedded within either or both types of the titanium layers.

Hybrid titanium alloy matrix composites

A rodent trap characterized by a rodent receiving chamber, a partition selectively movable across the chamber in a rodent eradicating relationship, a movable floor portion continually urged to an overlying position with respect to a rodent receiving tray, where the floor portion moves with the partition and cam action releases the floor portion to the aforesaid overlying position. A pressure sensitive switch holds the rodent bait and initiates sequential operation. The trap further employs a two-way solenoid for partition movement and a one-way gearing arrangement for selective floor portion position control.

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Hamden, CT, United States of America

Joseph A Goebel