| 发明名称 |
Telescoping chalk holder |
| 摘要 |
A telescopic chalk holder for drawing upon a drawing surface and including an outer cylinder having a tip at one end, a chalk stick received within the outer cylinder, the tip in radial receipt of the chalk stick, a push rod received by a second end of the outer cylinder and extending at least a portion of the chalk stick through the tip, and a push rod providing pressure to the chalk stick as the tip is manipulated over the drawing surface. |
| 申请公布号 |
US9004794(B2) |
申请公布日期 |
2015.04.14 |
| 申请号 |
US201313797528 |
申请日期 |
2013.03.12 |
| 申请人 |
|
发明人 |
Whigham Christopher |
| 分类号 |
B43K21/22;B43K23/016;B43K24/00 |
主分类号 |
B43K21/22 |
| 代理机构 |
Intellectual Property Center, LLC |
代理人 |
Intellectual Property Center, LLC ;Shaffer Arthur K. |
| 主权项 |
1. A telescopic chalk holder for drawing upon a drawing surface said holder comprising:
an outer cylinder having a tip at one end, a chalk stick received within said outer cylinder, said tip in radial receipt of said chalk stick, a sleeve placed over said tip, a push rod received by a second end of said outer cylinder and extending at least a portion of said chalk stick through said tip, and said push rod exerting pressure upon said chalk stick as said tip is manipulated over a drawing surface. |
| 地址 |
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