CA2499834A1 - Auto-retractable pen with ferromagnetic attachment - Google Patents
Auto-retractable pen with ferromagnetic attachment Download PDFInfo
- Publication number
- CA2499834A1 CA2499834A1 CA 2499834 CA2499834A CA2499834A1 CA 2499834 A1 CA2499834 A1 CA 2499834A1 CA 2499834 CA2499834 CA 2499834 CA 2499834 A CA2499834 A CA 2499834A CA 2499834 A1 CA2499834 A1 CA 2499834A1
- Authority
- CA
- Canada
- Prior art keywords
- pen
- cap
- ink cartridge
- permanent magnet
- auto
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/001—Supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
- B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
An auto-retractable pen comprises a pen and a cap. The pen comprises a hollow case, an ink cartridge, a mechanical spring and a mobile magnetic element. The cap comprises a cap body and a stationary permanent magnet. The pen or the cap comprises a ferromagnetic element. The pen is capable of attaching to the cap by the magnetic attraction force in a single-hand operation when a user places the mobile magnetic element of the pen in proximity to the stationary permanent magnet of the cap. The writing tip of the pen retracts into the hollow case of the pen when an upward magnetic attraction force becomes greater than a downward mechanical expansion force. The ferromagnetic element provides an increase in strength of the magnetic attachment force by concentrating magnetic flux lines. This invention relates to retractable pens, and the principal use of the invention is for operating a pen with a single hand.
Claims (13)
1. An auto-retractable pen comprising:
a pen comprising:
a hollow case having a closed end, a narrow middle portion and an open conical end;
an ink cartridge having a top end, a fat portion and a writing tip, the ink cartridge slidably mounted inside the hollow case, the writing tip of the ink cartridge being capable of penetrating through the open conical end of the hollow case;
a mechanical spring for downwardly biasing the ink cartridge, the mechanical spring concentrically mounted around the ink cartridge between the narrow middle portion of the hollow case and the fat portion of the ink cartridge;
a ferromagnetic element having a top end and portions defining a central hole, the ferromagnetic element securely attached to the top end of the ink cartridge; and a mobile magnetic element magnetically attached to the top end of the ferromagnetic element, the mobile magnetic element detachable from the ferromagnetic element; and a cap comprising:
a cap body having a top end and a bottom end; and a stationary permanent magnet for providing a magnetic attraction force, the stationary permanent magnet securely attached to the bottom end of the cap body;
the pen being capable of attaching to the cap by the magnetic attraction force in a single-hand operation when a user places the mobile magnetic element of the pen in proximity to the stationary permanent magnet of the cap, the writing tip of the ink cartridge of the pen retracting into the hollow case of the pen when an upward magnetic attraction force between the mobile magnetic element of the pen and the stationary permanent magnet of the cap becomes greater than a downward mechanical expansion force by the mechanical spring of the pen, the downward mechanical expansion force by the mechanical spring of the pen providing a cushion effect to the writing tip of the ink cartridge of the pen, the ferromagnetic element providing an increase in strength of the magnetic attachment force between the pen and the cap by concentrating magnetic flux lines between the mobile magnetic element and the stationary permanent magnet.
a pen comprising:
a hollow case having a closed end, a narrow middle portion and an open conical end;
an ink cartridge having a top end, a fat portion and a writing tip, the ink cartridge slidably mounted inside the hollow case, the writing tip of the ink cartridge being capable of penetrating through the open conical end of the hollow case;
a mechanical spring for downwardly biasing the ink cartridge, the mechanical spring concentrically mounted around the ink cartridge between the narrow middle portion of the hollow case and the fat portion of the ink cartridge;
a ferromagnetic element having a top end and portions defining a central hole, the ferromagnetic element securely attached to the top end of the ink cartridge; and a mobile magnetic element magnetically attached to the top end of the ferromagnetic element, the mobile magnetic element detachable from the ferromagnetic element; and a cap comprising:
a cap body having a top end and a bottom end; and a stationary permanent magnet for providing a magnetic attraction force, the stationary permanent magnet securely attached to the bottom end of the cap body;
the pen being capable of attaching to the cap by the magnetic attraction force in a single-hand operation when a user places the mobile magnetic element of the pen in proximity to the stationary permanent magnet of the cap, the writing tip of the ink cartridge of the pen retracting into the hollow case of the pen when an upward magnetic attraction force between the mobile magnetic element of the pen and the stationary permanent magnet of the cap becomes greater than a downward mechanical expansion force by the mechanical spring of the pen, the downward mechanical expansion force by the mechanical spring of the pen providing a cushion effect to the writing tip of the ink cartridge of the pen, the ferromagnetic element providing an increase in strength of the magnetic attachment force between the pen and the cap by concentrating magnetic flux lines between the mobile magnetic element and the stationary permanent magnet.
2. An auto-retractable pen comprising:
a pen comprising:
a hollow case having a closed end, a narrow middle portion and an open conical end;
an ink cartridge having a top end, a fat portion and a writing tip, the ink cartridge slidably mounted inside the hollow case, the writing tip of the ink cartridge being capable of penetrating through the open conical end of the hollow case;
a mechanical spring for downwardly biasing the ink cartridge, the mechanical spring concentrically mounted around the ink cartridge between the narrow middle portion of the hollow case and the fat portion of the ink cartridge; and a mobile magnetic element securely attached to the top end of the ink cartridge; and a cap comprising:
a cap body having a top end and a bottom end;
a ferromagnetic element having a bottom end, the ferromagnetic element securely attached to the bottom end of the cap body; and a stationary permanent magnet for providing a magnetic attraction force, the stationary permanent magnet magnetically attached to the bottom end of the ferromagnetic element, the stationary permanent magnet detachable from the ferromagnetic element;
the pen being capable of attaching to the cap by the magnetic attraction force in a single-hand operation when a user places the mobile magnetic element of the pen in proximity to the stationary permanent magnet of the cap, the writing tip of the ink cartridge of the pen retracting into the hollow case of the pen when an upward magnetic attraction force between the mobile magnetic element of the pen and the stationary permanent magnet of the cap becomes greater than a downward mechanical expansion force by the mechanical spring of the pen, the downward mechanical expansion force by the mechanical spring of the pen providing a cushion effect to the writing tip of the ink cartridge of the pen, the ferromagnetic element providing an increase in strength of the magnetic attachment force between the pen and the cap by concentrating magnetic flux lines between the mobile magnetic element and the stationary permanent magnet.
a pen comprising:
a hollow case having a closed end, a narrow middle portion and an open conical end;
an ink cartridge having a top end, a fat portion and a writing tip, the ink cartridge slidably mounted inside the hollow case, the writing tip of the ink cartridge being capable of penetrating through the open conical end of the hollow case;
a mechanical spring for downwardly biasing the ink cartridge, the mechanical spring concentrically mounted around the ink cartridge between the narrow middle portion of the hollow case and the fat portion of the ink cartridge; and a mobile magnetic element securely attached to the top end of the ink cartridge; and a cap comprising:
a cap body having a top end and a bottom end;
a ferromagnetic element having a bottom end, the ferromagnetic element securely attached to the bottom end of the cap body; and a stationary permanent magnet for providing a magnetic attraction force, the stationary permanent magnet magnetically attached to the bottom end of the ferromagnetic element, the stationary permanent magnet detachable from the ferromagnetic element;
the pen being capable of attaching to the cap by the magnetic attraction force in a single-hand operation when a user places the mobile magnetic element of the pen in proximity to the stationary permanent magnet of the cap, the writing tip of the ink cartridge of the pen retracting into the hollow case of the pen when an upward magnetic attraction force between the mobile magnetic element of the pen and the stationary permanent magnet of the cap becomes greater than a downward mechanical expansion force by the mechanical spring of the pen, the downward mechanical expansion force by the mechanical spring of the pen providing a cushion effect to the writing tip of the ink cartridge of the pen, the ferromagnetic element providing an increase in strength of the magnetic attachment force between the pen and the cap by concentrating magnetic flux lines between the mobile magnetic element and the stationary permanent magnet.
3. The auto-retractable pen as defined in claim 1 or claim 2, further comprising:
a loop-shaped cord securely attached to the top end of the cap body of the cap.
a loop-shaped cord securely attached to the top end of the cap body of the cap.
4. The auto-retractable pen as defined in claim 1 or claim 2, in which the hollow case of the pen is cylindrical.
5. The auto-retractable pen as defined in claim 1 or claim 2, in which the mobile magnetic element of the pen is disc-shaped.
6. The auto-retractable pen as defined in claim 1 or claim 2, in which the mobile magnetic element of the pen is ring-shaped.
7. The auto-retractable pen as defined in claim 1 or claim 2, in which the mobile magnetic element of the pen is made of a rare-earth permanent magnet.
8. The auto-retractable pen as defined in claim 1 or claim 2, in which the cap body of the cap is cylindrical.
9. The auto-retractable pen as defined in claim 1 or claim 2, in which the stationary permanent magnet of the cap is disc-shaped.
10. The auto-retractable pen as defined in claim 1 or claim 2, in which the stationary permanent magnet of the cap is ring-shaped.
11. The auto-retractable pen as defined in claim 1 or claim 2, in which the stationary permanent magnet of the cap is made of a rare-earth permanent magnet.
12. The auto-retractable pen as defined in claim 1 or claim 2, in which the ink cartridge of the pen is a ball-point pen.
13. The auto-retractable pen as defined in claim 1 or claim 2, in which the ink cartridge of the pen is a gel-ink pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2499834 CA2499834C (en) | 2005-03-18 | 2005-03-18 | Auto-retractable pen with ferromagnetic attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2499834 CA2499834C (en) | 2005-03-18 | 2005-03-18 | Auto-retractable pen with ferromagnetic attachment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2499834A1 true CA2499834A1 (en) | 2006-09-18 |
| CA2499834C CA2499834C (en) | 2011-09-20 |
Family
ID=37054247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2499834 Expired - Fee Related CA2499834C (en) | 2005-03-18 | 2005-03-18 | Auto-retractable pen with ferromagnetic attachment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2499834C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010092388A1 (en) * | 2009-02-13 | 2010-08-19 | Richard Colin Thomas Allan | Writing instrument |
| WO2010133800A1 (en) * | 2009-05-19 | 2010-11-25 | SOCIéTé BIC | Writing implement with magnetic repulsion |
| CN108602376A (en) * | 2016-01-08 | 2018-09-28 | 斯克里贝技术咨询有限责任公司 | Writing implement with magnetic characteristic portion and quick filling ability |
| WO2020074025A1 (en) * | 2018-10-12 | 2020-04-16 | Klaska Michal | Fountain pen |
-
2005
- 2005-03-18 CA CA 2499834 patent/CA2499834C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010092388A1 (en) * | 2009-02-13 | 2010-08-19 | Richard Colin Thomas Allan | Writing instrument |
| WO2010133800A1 (en) * | 2009-05-19 | 2010-11-25 | SOCIéTé BIC | Writing implement with magnetic repulsion |
| FR2945766A1 (en) * | 2009-05-19 | 2010-11-26 | Bic Soc | MAGNETIC REPULSION WRITING INSTRUMENT |
| CN102458874A (en) * | 2009-05-19 | 2012-05-16 | 毕克有限公司 | Writing implement with magnetic repulsion |
| CN102458874B (en) * | 2009-05-19 | 2015-07-01 | 毕克有限公司 | Writing implement with magnetic repulsion |
| CN108602376A (en) * | 2016-01-08 | 2018-09-28 | 斯克里贝技术咨询有限责任公司 | Writing implement with magnetic characteristic portion and quick filling ability |
| US10532601B2 (en) | 2016-01-08 | 2020-01-14 | Scribe Technical Consulting Llc | Writing instrument with magnetic features and quick refill capability |
| EP3400139A4 (en) * | 2016-01-08 | 2020-02-19 | Scribe Technical Consulting LLC | Writing instrument with magnetic features and quick refill capability |
| CN108602376B (en) * | 2016-01-08 | 2020-08-28 | 斯克里贝技术咨询有限责任公司 | Writing instrument with magnetic feature and quick fill capability |
| WO2020074025A1 (en) * | 2018-10-12 | 2020-04-16 | Klaska Michal | Fountain pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2499834C (en) | 2011-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2429153C (en) | Auto-retractable pen mechanism with a cushion effect | |
| US4601599A (en) | Ball-point pen | |
| CA2499834A1 (en) | Auto-retractable pen with ferromagnetic attachment | |
| WO2006113423A2 (en) | Writing instrument with magnetic clip | |
| US9744796B1 (en) | Retractable writing instrument | |
| JP2011088397A (en) | Clip for writing utensil | |
| JPH11157279A (en) | Clip for writing utensil, and writing utensil equipped with the same | |
| US20120003030A1 (en) | Tethered Cap For Pens And Markers | |
| JP3141557U (en) | Writing instrument with pressure absorption function | |
| CN211851356U (en) | Hidden magnetic door stopper | |
| CA2481605C (en) | Auto-retractable pen with an adjustable cushion effect | |
| CN101456318A (en) | New pen | |
| CN209973208U (en) | Opposite magnetic suction storage box | |
| CN202278873U (en) | Anti-break pen | |
| CN103707688B (en) | Magnetic ball pen tip | |
| CA2429157C (en) | Magnetically attached wearable pen | |
| WO2009051117A1 (en) | Gas spring | |
| CN107344463A (en) | A kind of signature pen for carrying the cap for brush | |
| CN202965598U (en) | Magnetic pen socket | |
| CN212666988U (en) | Sign pen with adsorption function | |
| KR20120007102U (en) | A spring and a retractable ballpoint pen with using magnetic substance | |
| CN210881428U (en) | Metal pen | |
| CN213354019U (en) | Pressure reducing pen | |
| CN211000629U (en) | Pen with writing-in function | |
| CN209738607U (en) | Pen with automatically rebounded pen point |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140318 |