Microdispensing pump

Details Microdispensing pump Microdispensing pump

2006-07-11

2006-07-11

Scherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Including supply holder for material

Fluid pressure discharge means

C239S088000, C239S089000

Reexamination Certificate

active

07073733

ABSTRACT:
Several different features are provided for use with a pump, particularly a microdispensing pump. In a first aspect of the subject invention, latch fingers are provided which coact with a stop member to yieldingly inhibit movement of an actuator of the pump to ensure sufficient momentum is provided to the pump for actuation. In a second aspect of the invention, an overcap is provided which defines an at least liquid-tight seal with the pump body at locations spaced from a nozzle of the pump to limit ingress of contaminants into the nozzle. In a third aspect, at least one protruding bead is provided in proximity to at least one edge of a label mounted to the pump body to restrict removal thereof. In a fourth aspect, at least one rib is provided in proximity to a dispensing cap to provide lateral stability thereto.

REFERENCES:
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patent: 4335835 (1982-06-01), Beigler et al.
patent: 4479797 (1984-10-01), Kobayashi et al.
patent: 4848598 (1989-07-01), McKinney
patent: 5358149 (1994-10-01), O'Neill
patent: 5467900 (1995-11-01), Maas et al.
patent: 5649649 (1997-07-01), Marelli
patent: 5947340 (1999-09-01), Arnold et al.
patent: 6083762 (2000-07-01), Papen et al.
patent: 6913169 (2005-07-01), Lee

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