Use of silver-copper-palladium brazing alloys

(54) USE OF SILVER-COPPER-PALLADIUM BRAZING ALLOYS

(75) Inventor: Rainer Lorenz, Lorrach (DE)

(73) Assignee: Endress + Hauser Flowtec AG,

Reinach (CH)

( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

This patent is subject to a terminal disclaimer.

(21) Appl. No.: 09/994,559

(22) Filed: Nov. 27, 2001

(65) Prior Publication Data

US 2002/0033056 Al Mar. 21, 2002

Related U.S. Application Data

(63) Continuation of application No. 09/618,068, filed on Jul. 17, 2000, now Pat. No. 6,352,196, which is a continuation of application No. 09/110,606, filed on Jul. 6, 1998, now Pat. No. 6,168,069.

(60) Provisional application No. 60/056,285, filed on Sep. 3, 1997.

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Primary Examiner—L. Edmondson

(74) Attorney, Agent, or Firm—-Jones, Tullar & Cooper, PC.

(57) ABSTRACT

A single-tube Coriolis mass flow sensor includes a stainless steel sleeve having an unplated interior surface and a titanium member having a cylindrical end inserted into the stainless steel sleeve. The exterior surface of the titanium cylindrical end forms a joint with the unplated interior surface of the stainless steel sleeve. The titanium cylindrical end is brazed to the unplated interior surface of the stainless steel sleeve at the joint, and the stainless steel sleeve exerts compressive stress on the titanium cylindrical end at the joint.

41 Claims, 3 Drawing Sheets

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