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Ralph M. Estes Patents |
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Inventor: Estes; Ralph M.
Address: Houston, TX
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| RE29299 |
Self sealing gate valve |
July 12, 1977 |
| .Iadd.A gate valve structure having a slab gate member and a pair of opposed seat assemblies on opposite sides of the gate member. The seat assemblies loosely fit in recesses in the housing and the dimensions of the gate member, seat assemblies and housing recesses are such that there |
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