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John H. Lutz Patents |
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Inventor: Lutz; John H.
Address: Claymont, DE
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5057217 |
Integral supported filter medium assembly |
October 15, 1991 |
| An integral filter leaf assembly comprising microporous polymeric filter cloths heat-bonded to the apices of an undulating screen to form a strong unitary pressure resistant filter unit which essentially replaces filter leaf assemblies. The screen and felt sides of the filter cloths are |
| 4931178 |
Filter cloth assembly |
June 5, 1990 |
| This invention provides a filter cloth assembly for use on a filter plate of a center-feed filter press, which comprises a two-part filter cloth with fittings for rapid and easy assembly on the filter plate, one cloth on each side. Methods of manufacture of the novel assembly and its par |
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