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Publication numberUS2111582 A
Publication typeGrant
Publication dateMar 22, 1938
Filing dateJul 18, 1936
Priority dateJul 18, 1936
Publication numberUS 2111582 A, US 2111582A, US-A-2111582, US2111582 A, US2111582A
InventorsSamuel Crewe
Original AssigneeMaintenance Res Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cartridge for caulking guns
US 2111582 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March Z2, 1938.

s. cREwE 2,111,582


Patented Mar. 22, 1938 PATENT OFFICE CARTRIDGE FOR CAULKING GUNS Samuel Crewe, East Cleveland, Ohio, assignor to Maintenance Research, Ltd., Cleveland, Ohio, a limited partnership of Ohio Application July 18, 1936, Serial No. 91,438

1 Claim.

This invention relates to improvements in containers used for handling and discharging plastic grease and the like, and particularly to cartridges for caulking guns of the type referred to in my cof-pending application filed January 30, 1936, and known as Serial No. 61,534.

An object of my invention is to provide an inexpensive cartridge, or individual container for plastic grease or caulk compounds which readily iits into the barrel of a gun of the above mentioned character and which obviates the necessity oi.' lling the gun barrel from a bulk container with a spoon, spatula, or similar implement.

Other objects of my invention are to provide a cartridge of the type mentioned with a transparent closure at one end which reveals the color and character of its contents, and also with an ejector cap at the opposite endsuitable for engagement with a gunl piston so as to form a scraper for the inside surface of the cartridge and which will prevent seepage and waste of the contents behind the said piston.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing, wherein:

Figure 1 is a section of a caulking gun havingv a partially empty cartridge therein.

Figure 2 is a side section view of a cartridge containing caulk.

Figure 3 is a front end view of the cartridge.

Figure 4 is a sectional side view of the ejector cup.

Figure 5 is a rear view of the ejector cup.

In the Figure 1. of the drawing there is shown a caulking gun of a type similar to the one described and shown in my United States Patent No. 1,536,477, granted May 5, 1925, which has a cylinder or barrel Il to which is attached a. nozzle I2, and a handle I3. The handle I3, contains a ratchet mechanism similar to the one described in my United States Patent No. 1,883,767, dated October 18, 1932, which handle operates a piston I5. There is also shown a partially empty cartridge I4, within the barrel I I, and the means by which it is emptied by the piston I5.

The cartridge I4, consists o1' a cardboard, composition, or metal tube I6, cylindrical in shape and open at both ends. The inner wall of the tube I5, is iinished with 'a layer of varnish I1, so as to give the tube I6, a hard and smooth surface, and' which prevents the tube from being damaged by the ejector cup or distorted by the absorption of the oils and chemicals in the caulkins compound contained therein. Over the front end of the tube I6, there is a cap I8, which has a transparent window. The cap I8, is simply a'metal cover having a hole over which a piece of cellophane I9, or other suitable transparent material is secured. The transparent material, however, should be of such thinness and texture that it will burst open when pressure is applied from within the cartridge I4.

The caulk 20, is visible through the cap I8, and is ejected through the nozzle I2, by the forward movement of the plunger I5, when the window in the cap I8, is broken. l Over the rear end of the tube I6, there isfa closure cap 2l, which seals the cartridge before insertion into the barrel Il. 'Ihe closure cap 2|, is made of paper or similar material and is discarded when the cartridge is about to be used.

Within the cartridge I4, there is inserted an ejector cup 4, for the purpose of aiding in the removal of the entire contents of the cartridge i4, and for preventing seepage and waste of the material behind the piston I5. This ejector cup also helps to keep the inside of the gun clean at all times. The ejector cup 4, is made oi a comparatively stiff and springy material such as tin,

celluloid, or hard cardboard. It is pressed or stamped out of sheet material, has pleated sides 23, and a depressible bottom 24. When the bottom 24, of the ejector cup 4, is pressed forward or inward by the piston I5, the sides 23, of theV cup 4, will bell or flare outward and its edge will form a close contact or seal between the smooth inner wall of the tube I6, and the piston I5, so that practically all of the caulk is removed during one stroke of the piston.

Having thus described my invention it is understood that the present disclosure is illustrative only, and that changes in construction may be made without departing from the spirit and scope of the appended claim.

What I claim is:

In a caulking gun, a cartridge for retaining plastic material, consisting ot in combination, a cylindrical container having front and rear ends, the said container having a shield formed of a solid layer of varnish, a cap for sealing the front end of the container, a window breakable by pressure from within the container in the said front cap, a closure cap for sealing the rear end of the container, and an ejector cup having a ilexible bottom andarable sides co-active with a convex ca ulking gun piston whereby the plastic material in the container may be ejected.

SAMUEL canwa.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2512178 *Aug 1, 1946Jun 20, 1950Sherbondy William ADispensing device for calking material and the like
US2536649 *May 21, 1946Jan 2, 1951Lindsey Ernest EMeans for the manufacture of articles of food
US2543190 *Jun 21, 1946Feb 27, 1951Musekamp Howard GTobacco cartridge
US2556980 *May 18, 1948Jun 12, 1951Raedecke Robert FHousing enclosing paste container, having container-puncturing and destroying means, and paste extruder and outlet controller with common actuator
US2608320 *Mar 31, 1947Aug 26, 1952Harrison Jr Joseph RPump type dispenser with cartridge having flexible and rigid portions
US2626731 *Nov 10, 1950Jan 27, 1953Ekins William J SCalking gun assembly
US2628743 *Oct 19, 1948Feb 17, 1953Newlyn Thomas JCold cream and chemical cream dispensing jar and container with follower restng on avertical column
US2646906 *May 17, 1950Jul 28, 1953Dorn Iron Works Company VanCaulking cartridge
US2754033 *Oct 24, 1952Jul 10, 1956Etter Dudley WInk dispenser
US2778541 *Sep 1, 1955Jan 22, 1957Sherbondy William ACaulking gun
US2788159 *Dec 29, 1954Apr 9, 1957Crewe Mfg IncCaulk gun
US2833451 *Jan 17, 1957May 6, 1958Sherbondy William ACaulking gun and cartridge therefor
US2838210 *Dec 21, 1954Jun 10, 1958Douglas Aircraft Co IncSealant dispensing device
US2899112 *Sep 16, 1955Aug 11, 1959 Disposable grease container
US2923442 *Feb 9, 1956Feb 2, 1960Maras Henry SPressure-relief member for dispenser for viscous material
US2936097 *Jun 9, 1958May 10, 1960Suhre JeromeMaterial dispensing gun
US2955728 *Mar 4, 1958Oct 11, 1960Macklanburg Louis ACalking load ejector cup
US3007621 *Jul 3, 1958Nov 7, 1961R C Can CoDisposable refill cartridge-tube for reloading grease dispensing guns
US3029985 *Feb 24, 1959Apr 17, 1962G & K Machine Co IncFlow control plunger
US3071294 *Apr 3, 1961Jan 1, 1963R C Can CoDispensing device for caulking cartridges
US3075675 *Nov 29, 1957Jan 29, 1963Gibson Homans CompanyPiston arrangement for dispensing partially compressible plastic materials
US3093274 *Jun 27, 1960Jun 11, 1963R C Can CoSpouts for caulking cartridges
US3125217 *Jul 10, 1961Mar 17, 1964 Karlik
US3189226 *Mar 4, 1963Jun 15, 1965William A SherbondyCalking assembly
US3273760 *Nov 6, 1962Sep 20, 1966Continental Can CoContainer with expelling means for use in manned space ships
US3338481 *Oct 8, 1965Aug 29, 1967Josua PollakSelf-dispensing containers
US3815791 *Apr 26, 1973Jun 11, 1974Cantop IncHermetically sealed tube for containing and dispensing viscous materials
US3884396 *Jul 29, 1974May 20, 1975Int Paper CoCartridge type dispenser with resilient slitted outlet valve
US4072250 *Jul 15, 1976Feb 7, 1978Elkem-Spigerverket A/SApparatus for plugging holes in an electric smelting furnace or the like
US4256241 *Feb 1, 1979Mar 17, 1981Mesic Robert SPesticide duster
US4366919 *Apr 20, 1979Jan 4, 1983Coaxial Cartridges, Inc.Composite cartridge and device for metering extrusion of contents
US4526303 *Oct 26, 1983Jul 2, 1985Dentsply Research & Development Corp.Syringes
US5301842 *Feb 21, 1992Apr 12, 1994Frank RitterMulticomponent cartridge for plastic materials
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US20100047038 *Aug 21, 2008Feb 25, 2010Brimhall James VBolt protectors for subsurface pipe fittings and associated methods
US20120175384 *Sep 17, 2010Jul 12, 2012Medmix Systems AgSealed container comprising a displaceable piston
US20150284171 *Mar 31, 2015Oct 8, 2015Fres-Co System Usa, Inc.Hand-held system for dispensing viscous materials from a flexible pouch and methods of accomplishing the same
WO1979000430A1 *Dec 20, 1978Jul 12, 1979O NielsenA container for containing liquid substances and a method for making the same
U.S. Classification222/327, 401/133, 222/541.3, 206/384, 222/391
International ClassificationF16N37/02, F16N37/00
Cooperative ClassificationF16N37/02
European ClassificationF16N37/02