Title: Heat exchanger tube base

Abstract: Improved tube bundle-type heat exchanger comprising at least one tube base cast from a plastic material, such as poly laurin lactam, with a tube bundle cast in the tube base. Several optional features are also disclosed.

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Inventors: Hartmann, Werner (Immenstaad, DE, US)

Application Number: 780067
Filing Date: 1977-03-22
Publication_date: 1980-02-26
Assignee: Swakopmund AG (Diesbach, CH)
Primary Class(es): 165/82 156/296, 165/158, 165/176, 165/905, 165/DIG70
Other Classes:
US Patent Ref:

1868661	Jul, 1932	Heimberger	165/176.
2056920	Oct, 1936	Demann	165/178.
2839276	Jun, 1958	Rossi	165/176.
3426841	Feb, 1969	Johnson	165/178.
3489209	Jan, 1970	Johnson	165/180.
3633660	Jan, 1972	Young	165/173.
3993126	Nov, 1976	Taylor	165/173.
4117884	Oct, 1978	Frei	29/157.

Other Refs: 9565054315201040284

Feb, 1950	FR
Jul, 1935	GB
Aug, 1966	GB

Primary Examiner: Richter, Sheldon Jay
Assistant Examiner:
Attorney: Thein; Tab T.