US2594638A

US2594638A - Draftsman's ink dispenser

Info

Publication number: US2594638A
Application number: US772370A
Authority: US
Inventors: Fred I Goodenow; Jr Julian Frank Goodenow
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-09-05
Filing date: 1947-09-05
Publication date: 1952-04-29
Anticipated expiration: 1969-04-29

Description

Aprl`29,v 1952 F. l. GooDENow ET Al. 2,594,638

DRAFTsMAN's INK DISPENSER Filed Sept. 5, 1947 Snventors Fred f aaae/mw, QM Ju//d/z Hmz/r 60m2/zong Jr.

into the bottle 2 terminating substantially adjacent to the bottom 4 as at 25, the upper end of said tube projecting outwardly from the aperture and terminating in a downwardly curved portion 26 to form a spout for the delivery of ink from the bottle as later described.

To prevent air from entering the inl: bottle and effecting the congealing of the ink in the tube 24,=we provide a wire 21 preferably of spring material and slightly smaller in diameter than the bore 28 of said tube 24, said wire preferably being slightly longer than the tube 24 and terminating at its outer end in a loop 29 to form a handle for manipulation of saidwire in inserting and withdrawing of the wire from the bore of the discharge tube. Saidv wire is particularly for insertion into the tube to maintain the passage therein open and prevent congealing of ink in the tube during periods of non-use of a dispenser.

In order to provide accurate control in the dispensing of ink from the dispenser tube, an aperture is located in the top I4 preferably in the upper end. Said aperture may be of a suitable shape, however it is preferably in the form of a thin slit whereby in normal positions the edges thereof are in contact to substantially seal the aperture. With this construction of the dispenser, the only openings through which air may enter the stopper or bottle are the passage 28 in the discharge tube which terminates below the level of the ink in the bottle and the aperture 30 in the upper end of the stopper top, which normally excludes substantially all of the air except when the top is compressed. Therefore, there is substantially no oxidation or congealingq of the ink in the bottle due to entry of air therein when not in use. The lower portion II of the stopper -tightly engages and seals the opening 8 in the bottle and engagement of the sides of the aperture 22 with the discharge tube 24 seals said aperture to prevent entry of air around said tube.

In using a device constructed as described, the stopper is removed from the `bottle and ink placed therein. The lower portion I I of the stopper is then inserted into the opening 8 of the bottle and pressed downwardly to seal same, the sides of the lower portion preferably having a groove 3I therein terminating as at 32 in spaced relation to the shoulder I3 whereby air may escape from the bottle asthe stopper is pressed therein, substantially eliminating any bubbling of ink from thev bottle during insertion of the stopper, therebeing sufficient` space between the groove 3| and the shoulderv I3 toA provide adequate sealing .surface between the lower portion- II of thev stopper and the opening 8 of the bottle. With the wire 21 in the passage 28 of the discharge tube 24 and the edges of the aperture 30 having engagement, the bottle is substantially sealed andl may be transported, overturned or otherwise handled without spilling vany of the ink from the dispenser. Therefore, a draftsman may have the dispenser on his board `yand does not have to exercise any care to prevent the overturning of the bottle. A t the beginning of the day or when the draftsman begins the inking of a drawing, the handle 29 of the wire 21 is grasped to withdraw the Wire from the discharge tube 24. The wire may be laid aside for the entire day or during the inking process of the drawing. The draftsman then places the instrumentadiacent theouter .end ofthe dis-A over the aperture 30 then by pressing the stopper top between the thumb and middle finger, the pressure on the thumb and middle finger will collapse the air chamber I6, forcing the air therefrom through the passage I9 to apply pressure on the upper surface of the ink 3 in the bottle 2. This forces ink through the passage 28 and from the delivery tube into the pen or other instrument being filled. The pressure on the top may be regulated to force the ink out of the delivery tube if desired. If an excess quantity of ink is delivered to the pen or instrument, the ink may be withdrawn from the pen 01 instrument by pressing the stopper top between the thumb and middle finger and then placing the foreiinger over the aperture, then lessening the pressure to force the air from the upper, surface of the ink into the air chamber. The lessening of pressure on the stopper top with the end of the delivery tube in the ink in the instrument will effect withdrawal of the ink from the instrument and return same through the delivery tube to the bottle.

Deliveryy or withdrawal of the ink through the f y deliveryv tube may be stopped at any time by lifting the forenger from covering relation with the aperture 39. With the aperture 30 open, the top Ill may be compressed and released as desired without ink being discharged or withdrawn through the delivery tube. Therefore accurate control of the delivery or withdrawal of ink from the dispenser is maintained by the closing of the aperture 3i] and the simultaneous compressing or releasing the stopper top I4.

While the dispenser may be used for many days.

xif-ithout replacing the wire 21, it is desirable at the end of the day, or after the inking of a drawing has been completed, to replace the wire 21 in the passage 28 of the tube 24 to maintain the passage free of any stoppage. While the dispenser is being used it may be overturned Without danger of spilling ink on the drawings. Therefore the draftsman does not have to exercise any care whatsoever in the protecting of the ink bottle as in ordinary practice.

Itis belived obvious that we have invented anvink dispenser which facilitates the lling of draftsmens inking instruments and completely eliminates any danger of damaging a drawing by the spilling of ink thereon.

What we claim and desire to secure by Letters Patent is:

An ink dispenser comprising, a container having a single yopening therein, a stopper formed of resilient material having aportion adapted for insertion into the container opening for sealing same, said stopper having a central passage therein opening to the interior of the container, a compressible top on said stopper and having a central chamber communicating through the stopper passage with the interior of the container for movement of air to and from the container, and a delivery tube extending downwardly through the stopper into the contents of the container and vhaving its outer end projecting outwardly through the stopper, said tube'having a through longitudinal passage with openings only at the ends thereof for movement of the contents of the container, said compressible top having a slit remotely of the container and positioned to be selectively covered by a finger of an operator when applying pressure to the compressible top, said slit having edges-which are lnormally resiliently'engag'ed to close -saniasaid slit opening only during compression 'and-x- W of the eompressible top to provide commnieqtion from the exterior of the stopper to the-efimber, passage in the stopper and interior of v tf1 container whereby movement of ink out of, 'finto the container through the delivery tube 1" effected by selective closing of the slit durin compression and expansion respectively of theieompressibie top.

\ FRED I. GOODENOW.

JULIAN FRANK GOODENOW. JR.

REFERENCES CITED UNITED STATES PATENTS Number- -l 446,202 684.320

Name Date Brown Feb. 10, 1891 Sidenstricker Oct. 8, 1901 Liftehild June 30, 1903 Elias Feb. 25, 190s -iish Jan. 25, 1910 Euverard Aug. 29, 1917 Nan Der Woerd Oct. 29, 1935 Salvesen Nov. 25, 1941 Schlesinger Nov. 21, 1944