Global Patent Index - EP 0965056 A4

EP 0965056 A4 2001-03-21 - CONDENSATE FREE ULTRASONIC TRANSMITTER

Title (en)

CONDENSATE FREE ULTRASONIC TRANSMITTER

Title (de)

KONDENSATFREIER ULTRASCHALLSENDER

Title (fr)

EMETTEUR A ULTRA-SONS SANS CONDENSAT

Publication

EP 0965056 A4 (EN)

Application

EP 98910128 A

Priority

  • US 9804075 W
  • US 3938997 P

Abstract (en)

[origin: WO9838528A1] A distance or level measuring system in accordance with the present invention is employed to measure the distance between a predetermined location and a material having a surface. The inventive system comprises a transducer (10), a heater (18) for heating the transducer so as to prevent the formation of condensation in an area adjacent the transducer and between the transducer and the material surface, and an electrical control circuit (80, 80') coupled to the heater for controllably energizing the heater.

IPC 1-7 (main, further and additional classification)

G01S 15/00; B06B 1/06; G01S 7/52; H01L 41/08; H04R 17/00

IPC 8 full level (invention and additional information)

B06B 1/06 (2006.01); G01F 23/296 (2006.01); G01S 7/52 (2006.01)

CPC (invention and additional information)

B06B 1/06 (2013.01); G01F 23/2962 (2013.01); G01S 7/52004 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 9838528A1

Designated contracting state (EPC)

DE ES FR GB NL

EPO simple patent family

WO 9838528 A1 19980903; CA 2282587 A1 19980903; EP 0965056 A1 19991222; EP 0965056 A4 20010321

INPADOC legal status


2002-03-20 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010829

2001-03-21 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010205

2001-03-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE ES FR GB NL

2001-03-21 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7G 01S 15/00 A, 7H 04R 17/00 B, 7H 01L 41/08 B, 7G 01S 7/52 B, 7B 06B 1/06 B

1999-12-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990927

1999-12-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB NL