US2266429A

US2266429A - Pencil cap

Info

Publication number: US2266429A
Application number: US313451A
Authority: US
Inventors: Serafin G Lopez
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-01-11
Filing date: 1940-01-11
Publication date: 1941-12-16
Anticipated expiration: 1958-12-16

Description

Patented Dec. 16, 1941 UNITED STATES APATI-:NT f OFFICE;

This invention relates to pencil caps.

It is an' object of the invention to provide a .cap having a removable eraser and container for extra leads. y k- A further object of the invention resides in -providing a device of the above-mentioned character which is simple land durable in construction, reliable and eilicient in use, and inexpensive to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this speciiication and in which likenumerals are employed to designate like parts throughout the'same,

Fig. 1 is a side elevational view of the cap applied to a combination pencil,

` end of the chamber.. The eraser lz which'is ntted Fig. 2 is a longitudinal sectional view taken on line 2-2 of Fig. 1. y

Fig. 3 is a crosssectional view taken on line 3--3 of Fig. 2,

Fig. 4 is a longitudinal sectional vView of a modified form of cap,

Fig. 5 is a longitudinal sectional view of a .further modified form of cap,

Fig. 6 is an enlarged sectional view of the ring f for mounting the eraser.

eraser mounted in the ring, and

in the ring serves as a closure for the chamber in which the extra leads are disposed.

In Fig. 5 a. further modied form of cap is shown which includes a bullet-shaped partition member 2| which is positioned within the tubular member 5 with the nose extending upwardly. The member 2l is of hollow construction, the recess 22 serving to receive 4the Vpencil pointwhen the cap is in position. The leads are positioned around the upwardlypxtending nose or reduced portion of the partition and rest on the base thereof.

In use, the eraser may be readily removed from the cap when it becomes worn and replaced with a new eraser which can be easily inserted in the ring Il which supports the eraser. Also the removable eraser serves asa closure for the lead chamber, so that extra leads may be conveniently carried without danger of breaking. While the Fig. s isv a mngitudinal sectional vie'w yof the cap with the double eraser mounted therein.

- In the drawing, wherein for the purpose of illustration, I have shown. a preferred embodiment of my invention, the numeral 5 denotes the preferred form of cap which comprises a tubular member constructed of suitable material having its lowerV end provided kwith internal screw threads' 6 adapted to engage the threaded por- -tion 1 of thecombination pen and pencil 8. The

upper end of the tubular member is formed to H which supports'the eraser I2. A single-end eraser may be fitted in the ring, as shown in n Fig. 6, or if desired a double-end 'eraser I3 may be iltted inthe ring, as shown in Fig. 7. A partioutercap i6 serves to protect the eraser from dirt, it may be eliminated if desired. Also, the bore of the nipple 9 may be constructed to have a tight ht with the eraser, thus eliminating the need of the screw ring Il.

It is to be understood that the form of my lnvention herein shown and described is to be -taken as a preferred example of the 'same and `that certain changes in the shape, size, and

,end for engagement with the barrel, a constricted internally threaded portion at its opposite end' which is threaded externally, a plug removably engaged in -said constricted portion, said plug having erasive. properties, a cover detachably Secured 0n the extern/B1 threads, and a transverse tion I4 is disposed in the tubular member below Y `nipple 9 and is connected thereto by screw i1, of if preferred may have a friction connection therewith, as shown-.at I8. in Fig. 4. In 4 a modined formo! capv is shown'in `chamber therebetween.-

2. A cap for a writing instrument lhaving barrel, comprising a sleeve having means atone end for engagement with the barrel,` and a contracted portion at its opposite end, a rubber plug normally held in said contracted portion, a cover engageable on said portion to normally enclose said plug. and an. enclosed. chamber in said Abar-- rel below said oontractedportion.

- SERAFIN G. LOPEZ.