Process for producing a protective cap for an infrared radiation thermometer that can be introduced into a body cavity

US6156148A · kind A · utility

Assignee

• The Braun Corporation · DE

Inventors

• Frank Beerwerth · Runkel, DE
• Bernhard Kraus · Solms, DE
• Katja Honnefeller · Friedrichsdorf, DE
• Gerald Görich · Weiterstadt, DE
• Walter Zimmermann · Barcelona, ES

Key dates

• Filing date: Aug 5, 1998
• Grant date: Dec 5, 2000
• Expiry date: Aug 5, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1062
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention is directed to a process for manufacturing a protective cap which is adapted to be fitted to an ear canal temperature measurement probe of an infrared radiation thermometer and to be introduced into a body cavity. The protective cap (1) is formed of a base body (3) of plastic material having its one end open and its opposite end closed by a window film (7) transparent to infrared radiation. In a first step of the process, at least one hole (5) is made in a sheet-, film-, web- or plate-shaped base body material intended to form the base body (3). In a second step of the process, the perforated base body material (6) is covered at least in the area of the hole (5) with a window film (7) fabricated from a plastic material transparent to infrared radiation and joined to the base body material (6) in an immovable manner. Subsequently, this composite body is shaped into a protective cap (1) in a third step and, where applicable, said cap is processed to the final dimensions of the protective cap (1) in a fourth step. This enables a plurality of protective caps (1) to be manufactured as on a conveyor line very simply and in no time.