Back to results
US 8,540,450 B1Granted
Pen cap attachment mechanism
OwnerMatthew Conableinventor
Life of this patent
Estimating the term…
Abstract
In general, this disclosure relates to a pen housing mechanism, comprising at least one locking collar provided on a pen body configured to receive a pen cap, specifically a pen cap having a plurality of inset “balls” that engage channels within the locking collar. In one form, the “balls” are fit into voids drilled or otherwise provided in a portion of the pen cap and press fit, or otherwise attached, thereto. In one form, a compression spring is provided, which biases the “balls” into a locking portion of the channel.
Claims10
A writing implement assembly comprising:
- a. a pen body having a writing end, and a longitudinal axis;
- b. a pen cap having an open end operatively configured to fit over a portion of the writing end of the pen body;
- c. a plurality of voids disposed through the open end of the pen cap;
- d. a plurality of rigid balls fixedly set within the voids disposed through the open end of the pen cap wherein the rigid balls extend inward of the pen cap and outward of the pen cap;
- e. a plurality of receiving channels provided on the writing end of the pen body;
- and
- f. wherein the receiving channels are operatively configured to receive a portion of the balls to maintain the pen cap upon the pen body.
4 more elements
Dependencies are inferred from the claim text.