Patent US4826339A successfully refreshed from Google Patents.
US4826339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser having a flexible nib, slidable sleeve and cap
Assignee: Pentel Co Ltd
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Filing: 1988-01-21
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Granted: 1989-05-02
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Expires: 2008-01-21
Abstract
Abstract A dispenser for dispensing a suitable material comprising a tubular casing having a reduced diameter portion at its one end portion, a nib fixed to an open end of the one end portion of the tubular casing, an elongated cap for protecting the nib and a sleeve slidably mounted on the reduced diameter portion of the tubular casing. The sleeve is slidable longitudinally along the reduced diameter portion, and has a first shoulder on its outer surface. The elongated cap has an open end for fitting to the tubular casing to enclose and protect the nib, and a second shoulder on an inner surface of the open end to abut against the first shoulder when the cap is moved to fit to the tubular casing.
Inventors
- 👤 Toshiyuki Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:01
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/001; A46B11/0013; A45; A45D; A45D33/00; A45D34/00; A45D34/04; A45D34/042; A46B17/00; A46B17/04; A46B2200/00; A46B2200/10; A46B2200/1046
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
169 words
A dispenser for dispensing a suitable material comprising: a tubular casing having an open end and a reduced diameter portion at said open end; a nib fixed to said open end of said tubular casing; a sleeve slidably mounted on said reduced diameter portion of said tubular casing, said sleeve being slidable longitudinally along said reduced diameter portion to a forward position where said sleeve substantially encloses said nib and to a retracted position where said nib is uncovered, said sleeve having a first engagement means on an outer surfaces thereof; and an elongated cap having an open end and fittable onto said sleeve when said sleeve is in the forward position, said cap having a second engagement means thereon abuttable against said first engagement means when said cap is fitted onto said sleeve for engaging said first engagement means to cause said sleeve to move to the retracted position and said cap to fit onto said tubular casing to enclose and protect said nib at the retracted position.
Claim 2
Dependent Claim
169 words
A dispenser for dispensing a suitable material comprising: a tubular casing having an open end and a reduced diameter portion at said open end; a nib fixed to said open end of said tubular casing; a sleeve slidably mounted on said reduced diameter portion of said tubular casing, said sleeve being slidable longitudinally along said reduced diameter portion to a forward position where said sleeve substantially encloses said nib and to a retracted position where said nib is uncovered, said sleeve having a first engagement means on an outer surfaces thereof; and an elongated cap having an open end and fittable onto said sleeve when said sleeve is in the forward position, said cap having a second engagement means thereon abuttable against said first engagement means when said cap is fitted onto said sleeve for engaging said first engagement means to cause said sleeve to move to the retracted position and said cap to fit onto said tubular casing to enclose and protect said nib at the retracted position.
Claim 3
Dependent Claim
81 words
A dispenser as claimed in claim 1 in which said sleeve has a first projection on an inner surface of one end portion distal to said nib, and said reduced diameter portion has a second projection on an outer surface of one end proximal to said nib so that the first and second projections will abut against each other when said sleeve is moved to the forward position to thereby prevent the sleeve from being removed from the reduced diameter portion.
Claim 4
Dependent Claim
78 words
A dispenser as claimed in claim 2 in which said reduced diameter portion has a resilient projection on the outer surface thereof adjacent the full diameter portion of said tubular casing for being resiliently engaged by said first projection when said sleeve is in the retracted position for preventing said sleeve from being removed from said reduced diameter portion when said cap is removed from said sleeve, whereby said nib is automatically exposed when said cap is removed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |