US2097160A

US2097160A - Fountain pen

Info

Publication number: US2097160A
Application number: US124408A
Authority: US
Inventors: Curto Anthony Lo
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-02-06
Filing date: 1937-02-06
Publication date: 1937-10-26
Anticipated expiration: 1954-10-26

Description

' Get. 26, 1937. Lo CURTO FOUNTAIN PEN Filed Feb. 6, 1937 INVENTOR. infbony 44 0 CUIIO BY TTORNEYS. v

Patented Oct. 26, 1937 NI ED STATES PATENTOFFQICE.

4 Claims.

The invention relates to fountain pens and has for one of its main objects to provide a fountain pen which has no parts which must be removed before the pen is ready for use. Another object is to provide a fountain pen in which the pen point and the part inwhich this is held are slidingly mounted so that they may be drawn into the holder when the pen is not in use.

A further object is to provide a dust-proof closure for the aperture through which the pen point is extended. A still further object is to provide means for automatically opening and closing this closure in such a mannertha-t the pen point will not be marred or damaged.

Additional objects are toprovide a fountain pen, of the type described, of simple construction, which has no parts easily broken up or apt to get out of order, in which the pen point is securely held in either its operative or inoperative position, which can be made of a size no larger than the ordinary fountain pen, and which can be manufactured and sold at a relatively low cost. 1

These and various otherobjects and advantages will be readily understood from thefollowing description and from the accompanying drawing of a preferred embodiment of the invention, in which, however, modifications may be made without departing from the scope of the appended claims. In the drawing i Fig. 1 is a plan view of the pen shown closed;

Fig. 2 is a similar view with the pen extended;

Fig. 3 is a longitudinal sectional view shown with the pen extended; I

Fig. 4 is a similar side view shown closed;

Fig. 5 is a side elevation of certain parts used in the pen;

Fig. 6 is an end view of the pen shown with the pen point extended;

Fig, '7 is an end view shown closed; and

Fig. 8 is a cross-sectional view taken on the line 8-8 in Fig. 4.

Referring now to all the views, simultaneously, f the pen consists of a holder which is preferably made up of an outer tube to and an inner tube l. The inner tube is firmly secured in the outer tube. A slot i2 is formed in both of these tubes and this slot is preferably provided with a "bayonet lock i3 at each end. A sleeve i4 is slidingly mounted on the holder and is connected, by means of a flat member I5, to the barrel !6 of the pen so that the barrel will slide in the holder when the sleeve is moved up or down. The pen point i1 is mounted in a cap l8 and connected with the customary rubber sack 19, which is contained in the barrel l6.

An opening 20 is formed in'the 'side'ofthe barrel I6 and over this opening a light spring 2| is secured, sothat when the pen point is extended,as shown in Fig. 3, this spring will be underneath and aligned with the end of a lever 22 mounted on the holder. As this is awell known filling device, it need not befurther described, except to state that in this case the spring and the lever are aligned with each other onlywhen' the pen point is extended. I

.A cap 23 is threaded into the bottom of the holder and extends some distance into the holder. It is provided with a recess 24-and with a slot 25. A plunger 26 is'slilingly mounted inthe recess 24. A short compression spring 21 is secured in the end of the barrel I6, and another compression spring 28 is placed below the plunger. 7 I 1 Abushing 29, having an opening 30, through which the pen point is extended, is rigidly secured in the upper end ofv the pen and over this opening a lid- 3| is hinged. This lid is connected to the plunger 26 by means of a rod 32which is slidingly mounted in a groove 33, cut in the inner member ll ofthe holder. The lower end of the rod '32 is bent sidewardly and inserted in a hole 34 drilled in the plunger 26, while the upper end of the rod is pivoted to a pair of lugs 35 mounted underneath thehinge. The pen operates in the following manner. When the pen is closed, as shown in Figs. 1 and 4, the sleeve H is turned so that the member l5 engages in the lower notch H! in the slot I2. As soon as the sleeve is turned so as to align the member IS with the slot l2, the

springs

21 and 28 tend to slide the barrel in the holder so as to project the pen point through the aperture in the upper notch l3, the sleeve is turned and then' pulled down, thus drawing thepen into the holder. The spring 28 will maintain the lid in its open position until the spring 21 engages with the plunger 26, after which the tension of this spring will slowly close the lid. Thus the lid cannot close until the pen point is inside of the holder and out of danger of being marred by the lid.

To adjust the tension of the springs to the right proportions, I preferably drill a plurality of holes 34 in the plunger 26, as plainly shown in Fig. 5.

Having described the invention and its objects, what I claim as new and wish to protect by Letters Patent is:--

1. A fountain pen of the type described; comprising a holder; a fountain pen barrel slidingly mounted in said holder; a pen point mounted at one end of the barrel; a slot formed in the holder; a sleeve slidingly mounted on the outside of the barrel and rigidly connected to the barrel; one end of the holder closed; an aperture formed in the other end of the holder; a lid, for covering said aperture, hinged adjacent to the aperture; a rod pivoted at one end to said hinge and contained within the holder; the other end of said rod connected to a plunger slidingly mounted in the other end of the holder; a relatively short compression spring inserted in the lower end of the barrel; another compression spring inserted under the plunger; and saidsprings so proportioned that, when the sleeve is moved in one direction the lid will be opened, by the action-of the spring below the plunger, prior to the extension of the pen point through the opening, and when moved in the other direction, the lid will be closed, by the action of the other spring.

2. A fountain pen of the type described; comprising a holder; a fountain pen barrel slidingly mounted in said holder; a pen point mounted at one end of the barrel; a slot formed in the holder;

a sleeve slidingly mounted on the outside of the barrel and rigidly connected'to the barrel; one end of the holder closed; an aperture formed in the other end of the holder; a lid, for covering said aperture, hinged adjacent to the aperture; a rod pivoted at one end to said hinge and contained within the holder; the other-end of said rod connected to a plunger slidingly mounted in the other end of the holder; a relatively short compression spring inserted in the lower end of the barrel; another compression spring inserted under the plunger; said springs so proportioned that, when the sleeve is moved in one direction the lid will be opened, by the action of the spring below the plunger, prior to the extension of the pen point through the opening, and when moved in the other direction, the lid will be closed, by the action of the other spring; and means for locking the pen point in either its extended or distended position.

3. A fountain pen of the type described; comprising a holder; a fountain pen barrel slidingly mounted in saidholder; a pen point mounted at one end of the barrel; a slot formed in the holder; a sleeve slidingly mounted on the outside of the barrel and rigidly connected to the barrel; one end of the holder closed; an aperture formed in the other end of the holder; a lid, for covering said aperture, hinged adjacent to the aperture; a rod pivoted at one end to said hinge and contained within the holder; the other end of said rod connected to a plunger slidingly mounted in the other end of the holder; a relatively short compression spring inserted in the lower end oi the barrel; another compression spring inserted under the plunger; said springs so proportioned that, when the sleeve is moved in one direction the lid will be opened, by the action of the spring below the plunger, prior to the extension'of the pen point through the opening, and when moved in the other direction, the lid will be closed, by the action of the other spring; and means for adjusting the tension of said springs.

4. A fountain pen of the type described; comprising a holder; a fountain pen barrel slidingly mounted in said holder; a pen point mounted at one end of the barrel; a slot formed in the holder; a sleeve slidingly mounted on the outside of the barreland rigidly connected to the barrel; one end of the holder closed; an aperture formed in the other end of the holder; a lid, for covering said aperture, hinged adjacent to the aperture; a rod pivoted at one end to said hinge and contained within the holder; the other end of said rod connected to a plunger slidingly mounted in the other end of the holder; a relatively short compression spring inserted in the lower end of the barrel; another compression spring inserted under the plunger; said springs so proportioned that, when the sleeve is moved in one direction the lid will be opened, by the action of the spring below the plunger, prior to the extension of the pen point through the opening, and when moved in the other direction, the lid will be closed, by the action of the other spring; and a filling device operatable only when the pen point is extended.

ANTHONY LO CURTO.