Travel multiplier mechanisms for writing instruments
US8147158B2 · kind B2 · utility
1Cited by
29References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.