Patent US3586451A successfully refreshed from Google Patents.
US3586451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instrument
Assignee: Individual
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Filing: 1968-12-13
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Granted: 1971-06-22
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Expires: 1988-12-13
Abstract
Abstract In a writing instrument with multiple writing members actuated by a single pushbutton, the writing member selected is brought into work position by an eccentric pusher in the lower part of the instrument and a shaft connected to a pushbutton freely mounted in the bore of the eccentric pusher.
Inventors
- 👤 Raimondo Canton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:26
CPC Classifications
B; B43; B43K; B43K24/00; B43K24/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
178 words
In a wriTing instrument including a body portion having a pushbutton opening at its rearward end, and having an eccentrically disposed orifice at its forward end for slidably receiving a writing tip of a selected one of a plurality of writing members held within the instrument, the combination comprising, a pushbutton retractably mounted in said opening, a drum rotatably and slideably mounted in said body portion for holding a plurality of writing members, means connecting said drum to said pushbutton for rotating said drum upon rotation of said pushbutton, said drum having a first chamber at its forward end for receiving the rear portions of said writing members and having a second chamber in communication with said first chamber, said second chamber having a cylindrical bore and having guiding means therein for guiding said writing members, and eccentric pusher means connected to said pushbutton for actuation thereby to push the writing tip of one of said writing members through said orifice when said one writing member is aligned with said orifice by rotation of said pushbutton and drum.
Claim 2
Dependent Claim
178 words
In a wriTing instrument including a body portion having a pushbutton opening at its rearward end, and having an eccentrically disposed orifice at its forward end for slidably receiving a writing tip of a selected one of a plurality of writing members held within the instrument, the combination comprising, a pushbutton retractably mounted in said opening, a drum rotatably and slideably mounted in said body portion for holding a plurality of writing members, means connecting said drum to said pushbutton for rotating said drum upon rotation of said pushbutton, said drum having a first chamber at its forward end for receiving the rear portions of said writing members and having a second chamber in communication with said first chamber, said second chamber having a cylindrical bore and having guiding means therein for guiding said writing members, and eccentric pusher means connected to said pushbutton for actuation thereby to push the writing tip of one of said writing members through said orifice when said one writing member is aligned with said orifice by rotation of said pushbutton and drum.
Claim 3
Dependent Claim
26 words
A writing instrument as set forth in claim 1, in which said guiding means comprises a sleeve having a sector-shaped cross section and a cylindrical shank.
Claim 4
Dependent Claim
185 words
In a writing instrument including a body portion having a pushbutton opening at its rearward end, and having an eccentrically disposed orifice at its forward end for slidably receiving a writing tip of a selected one of a plurality of writing members held within the instrument, the combination comprising, a pushbutton retractably mounted in said opening, a drum rotatably and slideably mounted in said body portion for holding a plurality of writing members, rotating means connecting said drum to said pushbutton for rotating said drum upon rotation of said pushbutton, and eccentric pusher means connected to said pushbutton for actuation thereby to push the writing tip of one of said writing members through said orifice when said one writing member is aligned with said orifice by rotation of said drum, wherein said eccentric pusher means has an axial opening therethrough and said rotating means includes a rod fixed to said pushbutton and received through said opening in said eccentric pusher means, said rod having means connected to its forward end for engaging and rotating said drum upon rotation of said fixedly connected pushbutton and rod.
Claim 5
Dependent Claim
185 words
In a writing instrument including a body portion having a pushbutton opening at its rearward end, and having an eccentrically disposed orifice at its forward end for slidably receiving a writing tip of a selected one of a plurality of writing members held within the instrument, the combination comprising, a pushbutton retractably mounted in said opening, a drum rotatably and slideably mounted in said body portion for holding a plurality of writing members, rotating means connecting said drum to said pushbutton for rotating said drum upon rotation of said pushbutton, and eccentric pusher means connected to said pushbutton for actuation thereby to push the writing tip of one of said writing members through said orifice when said one writing member is aligned with said orifice by rotation of said drum, wherein said eccentric pusher means has an axial opening therethrough and said rotating means includes a rod fixed to said pushbutton and received through said opening in said eccentric pusher means, said rod having means connected to its forward end for engaging and rotating said drum upon rotation of said fixedly connected pushbutton and rod.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |