US Patent 7938375 Pen retaining sleeve

A collapsible pen holder installed within a surface of an object, including an automobile dashboard or briefcase, secures and retains a pen within a cylindrical sleeve slidably engaged within a cylindrical mounting frame member, exposing a pen cap of the pen. The pen is placed within the cylindrical sleeve which is then pushed into the mounting frame member until the cylindrical sleeve is retained within the mounting frame member by a locking mechanism, exposing only an end of the pen cap. To remove the pen from the pen holder, the end of the pen head is depressed, releasing the locking mechanism and ejecting the cylindrical sleeve from the mounting frame member, projecting the cylindrical sleeve from the surface by a spring mechanism allowing the pen to be removed from the cylindrical sleeve.