Travel multiplier mechanisms for writing instruments
US7891897B2 · kind B2 · utility
2Cited by
23References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2006 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Dec 8, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K25/028
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writing instrument includes a travel multiplier mechanism that includes a cam member that pivots about a pivot axis in response to motion of a push button member. The cam member engages a sliding piston member in order to provide a travel multiplying effect such that a distance of travel of the sliding piston member exceeds a distance traveled by the push button member. The cam member may be configured to rotate about an axis that is located in a plane perpendicular to a primary axis of a barrel of the writing instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.