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Biasing unit for dispensing pump |
| T993004 |
Biasing unit for dispensing pump
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| Patent Drawings: | |
| Inventor: |
French |
| Date Issued: |
April 1, 1980 |
| Application: |
06/047,403 |
| Filed: |
June 11, 1979 |
| Inventors: |
French; Floyd R. (Manchester, MO)
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| U.S. Class: |
222/321.8; 222/336 |
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| International Class: |
B05B 11/00 |
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| Abstract: |
An elastomeric biasing unit for a manually operated dispensing pump of the type including a hollow, stationary piston and reciprocable piston cylinder coaxially disposed about the piston and cooperating therewith to define a variable volume pump chamber. The biasing unit, which urges the piston cylinder outward to a position of maximum pump chamber volume, has an open end in operative association with the piston cylinder and a generally closed end, providing a component of the inlet check valve, in operative association with the piston. |
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