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US5056949A Expired / Lapsed US ⏱️ 0.0 years remaining

Correction fluid dispenser with ball valve

Assignee: Berol Corp
•
Filing: 1990-10-05
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Granted: 1991-10-15
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Expires: 2010-10-05
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Abstract

Abstract A correction fluid dispenser comprising a body member adapted to retain a correction fluid and a barrel disposed at one end thereof for delivery of the fluid to a surface. The barrel terminates in an orifice formed by a circular rim with a spherical ball of greater diameter disposed at the orifice. The ball is supported by a socket member, the ball and socket means being spring biased toward the orifice. A stop means is provided to prevent the ball from extending entirely within the rim of the orifice.

Inventors

  • 👤 Richard J. Petrillo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 15:23
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/08; B43K1/086; B43K1/088

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 204 words
A correction fluid dispenser comprising: a body member adapted to retain a correction fluid; barrel means disposed at one end of said body member for delivery of correction fluid from said body member to the surface upon which a correction is to be made; said barrel means having an orifice with a circular rim formed at the end thereof opening into a tubular passage extending to and communicating with the interior of said body member; a spherical ball of greater diameter than said orifice circular rim disposed within said tubular passage adjacent said circular rim; a socket member for axial movement in said tubular passage and comprising an annulus having wall structure contacting said tubular passage during axial movement of said socket member and a plurality of axially extending ribs equally spaced about a circumference of said annulus and extending beyond said annulus; each said rib having a surface directed radially inwardly toward said annulus at either end therefor contacting said spherical ball at one rib end; and spring means disposed within said tubular passage and contacting each of said ribs at a said surface at a rib end opposite said one rib end for biasing said socket member toward said orifice circular rim.
Claim 2
Dependent Claim 204 words
A correction fluid dispenser comprising: a body member adapted to retain a correction fluid; barrel means disposed at one end of said body member for delivery of correction fluid from said body member to the surface upon which a correction is to be made; said barrel means having an orifice with a circular rim formed at the end thereof opening into a tubular passage extending to and communicating with the interior of said body member; a spherical ball of greater diameter than said orifice circular rim disposed within said tubular passage adjacent said circular rim; a socket member for axial movement in said tubular passage and comprising an annulus having wall structure contacting said tubular passage during axial movement of said socket member and a plurality of axially extending ribs equally spaced about a circumference of said annulus and extending beyond said annulus; each said rib having a surface directed radially inwardly toward said annulus at either end therefor contacting said spherical ball at one rib end; and spring means disposed within said tubular passage and contacting each of said ribs at a said surface at a rib end opposite said one rib end for biasing said socket member toward said orifice circular rim.
Claim 3
Dependent Claim 30 words
A correction fluid dispenser as set forth in claim 1 further comprising stop means for preventing movement of said socket member greater than a predetermined distance from said circular rim.
Claim 4
Dependent Claim 65 words
A correction fluid dispenser as set forth in claim 1 which further includes a tubular retainer disposed within said barrel means tubular passage and having said spring means disposed therein, said retainer having a stop surface in facing relation with said socket member, said stop surface spaced a predetermined distance from said circular rim to prevent movement of said socket member away from said orifice.
Claim 5
Dependent Claim 47 words
A correction fluid dispenser as set forth in claim 3 wherein said predetermined distance is of a dimension to limit travel of said spherical ball when contacted by said socket member to a position wherein a portion of said ball is maintained outside of said circular rim.
Claim 6
Dependent Claim 24 words
A correction fluid dispenser as set forth in claim 3 wherein said barrel means and said socket member are manufactured of a plastic material.
Claim 7
Dependent Claim 24 words
A correction fluid dispenser as set forth in claim 1 wherein said barrel means and said socket member are manufactured of a plastic material.
Claim 8
Dependent Claim 17 words
A correction fluid dispenser as set forth in claim 1 wherein said ribs are three in number.
Claim 9
Dependent Claim 39 words
A correction fluid dispenser as set forth in claim 1 wherein each said rib end surface is directed radially inwardly to form the same angle as another rib end surface with respect to the centerline of said tubular passage.

References Cited (Backward Citations)

FR964045A Cited
US1485181A Cited
FR679441A Cited
DE697595C Cited
US2192479A Cited
FR58420E Cited
US2663891A Cited
BE511429A Cited
US2719314A Cited
US3379490A Cited
US4573820A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-10-14 1995-04-15 1995-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-10-14 1999-04-15 1999-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-10-14 2003-04-15 2003-10-15 $7700.00 Window Closed / Lapsed

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