Title: Apparatus for thermally treating polymeric workpieces with microwave energy

Abstract: A prismatic waveguide of square or rectangular cross-section has at least one pair of opposite inner wall surfaces formed with inwardly projecting parallel cheeks extending along a treatment zone for elongate polymeric workpieces, the width of the cheeks being less than the spacing of the other pair of inner wall surfaces from each other. The waveguide is split along a median parting plane, bisecting this pair of cheeks, to facilitate separation of its two halves by relative tilting about a pivotal axis, the two halves adjoining each other along quarter-wavelength flanges parallel to that plane preventing the outward leakage of microwave energy.

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Inventors: Van Amsterdam, Cornelis Johannes Maria (Viersen, DT)

Application Number: 596856
Filing Date: 1975-07-17
Publication_date: 1977-07-12
Assignee: Johannes Menschner Maschinenfabrik GmbH & Co. KG. (Dulken, DT)
Primary Class(es): 219/697 219/690, 219/736
Other Classes:
US Patent Ref:

3465114	Sep, 1969	Bleackley et al.	219/10.
3555232	Jan, 1971	Bleackley	219/10.
3843861	Oct, 1974	Van Amsterdam	219/10.

Other Refs:
Primary Examiner: Reynolds, Bruce A.
Assistant Examiner:
Attorney: Montague; Ernest G., Ross; Karl F., Dubno; Herbert