Claims
- 1. A dispenser for dispensing a substance, including:
- a container having a lid, a base and a side wall, the lid and base being formed from light gauge material and being capable of bowing unless restrained;
- a piston arranged within the container for movement within the container relative to the side wall of the container for dispensing the substance from the dispenser;
- moving means for moving the piston; and
- a rod, positioned in the container closer to the center of the container than to the side wall of the container and affixed to said lid and said base, for holding the base and the lid of the container and for preventing the lid and the base of the container from bowing during movement of the piston.
- 2. The dispenser of the claim 1, wherein the side wall of the container defines an inner diameter, the piston including a hole therein and having a diameter which closely matches the said inner diameter to prevent seepage of the substance past the piston, and the rod having a tight fit in the hole to prevent seepage of the substance through the hole and past the piston.
Priority Claims (1)
Number |
Date |
Country |
Kind |
PJ4700 |
Jun 1989 |
AUX |
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Parent Case Info
This is a continuation of application Ser. No. 07/718,894 filed Jun. 21, 1991, now U.S. Pat. No. 5,181,629 issued Jan. 26, 1993, which is a continuation of U.S. Ser. No. 07/534,468 filed Jun. 7, 1990, now U.S. Pat. No. 5,050,774.
US Referenced Citations (28)
Continuations (2)
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Number |
Date |
Country |
Parent |
718994 |
Jun 1991 |
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Parent |
534468 |
Jun 1990 |
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