Applicator tip assembly for a pen-like instrument

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4573820
SERIAL NO

06627288

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An applicator tip assembly including a body adapted to be secured to a fluid filled housing and having a through opening through which the fluid is dispensed and an applicator member positioned within the through opening and normally biased by a coil spring into sealing engagement against walls of the body defining an outlet for the through opening. The through opening in the body is partially defined by longitudinally extending radially inwardly projecting spaced fins, and the coil spring has a compressible portion between and guided for longitudinal movement by the fins ajacent the applicator member, and an anchor portion at the end of the compressible portion opposite the applicator member in firm thread-like engagement with the inner edges of the fins. Portion of the through opening defined between the fins afford easy passage of fluid around the spring in the through opening.

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Patent Owner(s)

Patent OwnerAddress
MINNESOTA MINING & MANUFACTURING COMPANYATTN DOCKETING 3M CENTER BLDG 220-12W-01 P O BOX 33427 3M OFFICE OF INTELLECTUAL PROPERTY ST PAUL MN 55133

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kirchhoff, Kenneth J Gem Lake, MN 44 852

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