According to an aspect, a writing instrument is provided. The writing instrument includes a reservoir for storing writing ink, a nib arranged distally to the reservoir and in fluid communication with the reservoir, a porous membrane or mesh surrounding at least a distal portion of the nib, wherein, in a writing position, the porous membrane or mesh is configured to contact the nib, thereby allowing ink to penetrate through the porous membrane or mesh.

A sports implement for obtaining autographs, having a core, a hole in the core having an open end and a closed bottom end, a housing disposed within the hole further comprising a latch, a spring, and a stop rim. The implement further includes a cap rotatably and slidably disposed within the housing comprising a first position wherein the cap compresses the spring toward the closed bottom end and a second position wherein the spring urges the cap against the stop rim, and a writing utensil removably coupled with the cap and rotationally coupled with the housing, further comprising a striker selectively interfacing with the latch.

A sports implement for obtaining autographs, having a core, a hole in the core having an open end and a closed bottom end, a housing disposed within the hole further comprising a latch, a spring, and a stop rim. The implement further includes a cap rotatably and slidably disposed within the housing comprising a first position wherein the cap compresses the spring toward the closed bottom end and a second position wherein the spring urges the cap against the stop rim, and a writing utensil removably coupled with the cap and rotationally coupled with the housing, further comprising a striker selectively interfacing with the latch.

A sports implement for obtaining autographs, having a core, a hole in the core having an open end and a closed bottom end, a housing disposed within the hole further comprising a latch, a spring, and a stop rim. The implement further includes a cap rotatably and slidably disposed within the housing comprising a first position wherein the cap compresses the spring toward the closed bottom end and a second position wherein the spring urges the cap against the stop rim, and a writing utensil removably coupled with the cap and rotationally coupled with the housing, further comprising a striker selectively interfacing with the latch.

A writing instrument including: a body extending longitudinally along a central axis; a resilient element fixed to at least one portion of the body. The resilient element of the at least one portion of the body is in one piece and is made of at least partially amorphous metal alloy.

A stylus includes a casing comprising an opening, a push rod disposed in the casing, a pen head fixed on an end of the push rod, a reflector coupled to the push rod, and a linkage mechanism disposed in the casing. At least a part of the pen head is exposed of the casing. An end of the linkage mechanism is fixed on the casing. The linkage mechanism connects reflector to the push rod, such that when the pen head is pushed into the casing, a moving distance of the reflector is greater than that of the pen head, and the reflector is exposed of the opening.

A protective element for a writing tip of a writing instrument including a cap extending longitudinally along a central axis and configured to be fitted onto a body of the instrument, and a clip extending substantially parallel to the central axis from a first end fixed to the cap to a free end. The clip and the cap are in one piece.

A writing implement comprises a main body and a cap, and the main body comprises a plunger. An undercut is formed on an inner wall of the cap. When the cap is engaging to the main body, a load from the inner wall of the cap is applied to the plunger. The cap is interlocked to the main body when the load against the plunger is reduced or removed. With such a structure, the writing implement can be attached and detached smoothly between two detachable parts such as the cap and the main body. Also, it is possible to reduces friction and wear on an engaging and interlocking section.

According to an aspect, a writing instrument is provided. The writing instrument includes a reservoir for storing writing ink, a nib arranged distally to the reservoir and in fluid communication with the reservoir, a porous membrane or mesh surrounding at least a distal portion of the nib, wherein, in a writing position, the porous membrane or mesh is configured to contact the nib, thereby allowing ink to penetrate through the porous membrane or mesh.