Home

Primary Examiner: Borchelt, Archie R.
Assistant Examiner: Nussbaum, Marvin
Attorney: Fuerle; R. D.

Next ten patents ordered by date:

Flexible wave guide and method for making same
Microwave waveguide dissipative load comprising fluid cooled lossy waveguide section
Recirculating electric and acoustic tapped delay line
Reed switch relay
Instantaneously tripping device for circuit interrupter
Relay contact adjusting arrangement
Switching apparatus
High speed solenoid employing multiple springs
Thermostat with automatic accelerator
Thermostat with heat conductor

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Acoustic surface wave devices using Tl.sub.3 TaS.sub.4 and Tl.sub.3 TaSe.sub.4 crystals

Abstract: An acoustic surface wave device is disclosed which comprises a crystal of Tl.sub.3 TaS.sub.4, Tl.sub.3 TaSe.sub.4, or mixtures thereof having at least one surface suitable for the propagation of surface waves, a surface wave generating transducer mounted on the surface, and a surface wave receiving transducer mounted on the surface positioned to receive a surface wave generated by the surface wave generating transducer. The device transmits surface waves at a low velocity and high coupling efficiency and can be used in a delay line, a filter, an FM discriminator, an oscillator, or other device.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Isaacs, Thelma J. (Murrysville, PA, US)
Weinert, Robert W. (Monroeville, PA, US)

Application Number: 540193
Filing Date: 1975-01-10
Publication_date: 1976-02-24
Assignee: Westinghouse Electric Corporation (Pittsburgh, PA)
Primary Class(es): 333/150 310/313B, 310/313R
Other Classes:
US Patent Ref:

3818382

Jun, 1974

Holland et al.

333/30.

Other Refs: Other References: cermak-Width of the Energy Gap of Some Ternary Thallium Chalcogenides in Collection Czechoslov Chem. Commun Vol. 34, 1969; pp. 3605-3609.