US1274915A

US1274915A - Liquid-dispenser.

Info

Publication number: US1274915A
Application number: US17037917A
Authority: US
Inventors: Jeremiah G Mcenery
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-05-23
Filing date: 1917-05-23
Publication date: 1918-08-06
Anticipated expiration: 1935-08-06

Description

I. G. IVIcI-NERY.

LIQUID DISPENSER. APPLICATION FILED M'AY 23. |911.

1,274,915. PatenIedAug. 6,1918.

To all whom t may. concern:

- 'lm imfe. munir-nav, or carence, ILLINoIs.

' LIeUIn-nrsrnnsna.

Be it known that I, JEREMIAH. G. MQEN- Enr, a citizen of the United States, and a resident of Chicago, in the countyv of .Cook and State of Illinois, have invented certain new'and useful Improvements in. Liquid- Dispensers, of which the following is a specification. l

My invention relates toan improved dis-,I penser for liquids s uch as liquid soap.

My improved d1spensei belongs to that classin which a spout lunger c Xtends downwardly from the liquid reservoir and is provided withla dispensing passageway normally closed to the container contents Abut being. brought into position to receive and dispense the contents when the plunger spout is forced upwardly. O ne of the important features of my 'invention is the provision of a plunger chamber-which communicates with the liquidreservoir through a passageway which` is of such capacity relative to that of the plungerpassageway that onlyI part of the chamber will contain liquid, air filling the remaining sp-ace to be com.-` pressed when-the plunger is raised and to force liquid from the chamber into and.

through the plunger passageway, part of the air being also 4forced upwardly into the reser- Y voir. hen' when the plunger is suddenly returned as by a spring, the suction effect produced in the plunger chamber will cause air to be drawn upwardly through the pl er passageway and a fresh charge of liquliid drawn into the plunger chamber. Another feature of the invention -resides 1n means for adjusting, relative to. the plunger passageway, the capacity of the passageway which connects the reservoir with 'the plunger chamber.

The above and other features of my invention are embodied in the structure shown on the accompanying drawings.V In these. drawings- Fi re 1 is a vertical diametral view of' the dispenser and a supporting bracket therefor, and

Fig. 2 is a plan view of the dispensing fittin phe cylindrical cu 5 has interior threads for receiving the out et neck 6 of the reserl voir 7, and depending from the cup is the lug 8 having exterior threads for engaging in the threaded circular end 9 ofthe supporting bracket 10. The lug has the axial guide passageway 11 for the plunger spout y spe-mation of Letters-Patent. spammen mea may 2s, 1917. serial No. 170,379.

patented Aug. crisis..

12, which a distance downwardly from itsupper c nd has the annular abutment and supporting flange 13 whose under surface is way 11. A 'dispensing passageway or duct spout from the side inlet opening 16 to the preferably conical to lit the conical seat 14.- 60 v surrounding the upper end of the passagelower end of the plunger, the top of the iiio5 let lbeing just below the iange 13 4to be closed when the plunger is down and to be open to the .space above the seat 1,4 when the plunger is raised.

Within the cup 5is the cylindrical frame 70 or shell 17 vclosed at its upper end by the top 18 and open at its lower end, the outer diameter of the shell being such that it will Vreadily pass through theneck 6 of the reservoir, and the inner diameter being such that the shell at its lower end will surround the annular boss 19 surrounding the seat 14 for the plunger. At its lower edge the frame 17 has the lateral annular flange 20 which seats on the bottom of the cup 5 within the raised 80 annular seat 21 at the lower corner of the cup 5. Engaging thetop of the fiange 2O and seat'21 1s a washer 22 of rubber or other material which, when the reservoir 7 is screwed into the cup,is compressed -to'seal 85 the chamber c in the frame 17 from the cup 5 and the reservoir, the only communication between the reservoir and the chamber c being through the passageway 23 in the top 18 of the frame. At its inner side the top 90 18 has the annular pocket 24 for seating the upper end of a compression spring 25 which` lat its lower end surrounds the top of the plunger 12 and seats against the ange-l.

In accordancewith my invention the capacity of the passagewayV 23 has a fixed relation to the capacity of the plunger passageway' 15, the passageway 23 being prefer-- ably smaller, and means are preferably provided for adjusting the size of the passageway 23. As shown in Fig. 2, this passageway may be in the form of a slot over which a plate 26 is pivoted to be shifted to adjust the available passageway through the slot between the reservoir and the chamber c.

The operation is now apparent. When the device is empty the reservoir and the chamber will be lled with air, and when li uid is charged into the reservoir some will ow through the passageway 28 into chamber c, 110

butthis chamber will not be filled as `on account of the small capacity of the passage. r

v 23v air :will be entrapped ,inthe chamber. f v,Then when the lunger spout is ushed upwardly andfthe vvo urne-of the cham erre- A duced, the airfabove the 'liquid in the chamber will be compressed and will force the vliquid `into and'throughthe passageway- 15 tobedischaredl vSome of `the air is also i `frorcedfu'pwar ly through' the passageway 23 into the reservoir. When the plunger spout .is released the spring, will throw` it backv )to its lower position." During such return air an movement of the plunger the volume of the l chamber 0 is increased and suction effect .is produced'thereim'and this will cause air to .be drawn into the chamber. through the plunger passageway 15,-and will also cause,

liquid to be drawn into the chamber from 'the reservoir through the passageway 23. The roportion .of air and liquid in the chamiier 0 after a dispensing operation dependsupon the frelative ca a'cities of the D sageway 23 relative to that ofthe spout passageway can -be adjusted, and for each adi justment there will be only a redetermined quantity of liquid inthe cham er o .available to'be dispensed when the plunger is raised anddepending upon .the degree of raising'of the plunger a proportionate amount of this Aliquid in chamber c will be dispensed. YAn

important and very desirable result of the above construction and operation is that during each up-stroke of the plunger the passageway 23 v'will be cleaned by the air turn movement of the plunger its passageway 15 is thorou hly cleanedv ,by vthe air sucked upwardly t erethrough. After each dispensin operation the plunger duct 15 is entirely c ear of liquid and dripping andv clogging is entirely eliminated.

To prevent closure, of. -the lowerl end of passageway 15 when the plunger is raised by the hand,

side outlets

27 and 28 may be provided with their outlet ends sufliciently elevated to prevent closure by the hand.

In the bottom of cup 5 annular'clearance pockets 29 may be provided for receiving solid particles in the liquid which might otherwise prevent accurate seating and sealingofthe frame v17.

he liquid receptacle -7 is preferably of glass and may be permanently closed at the top and filled by removing it from the cup 5. However, I prefer to provide the inlet neck 30 at the top to beclosed by a cap 31 provided with a disk or washer 32. I do not desire to be limited to the exact construction, arrangement and operation 'nem-,915', f. v

shown and described as modifications are noA doubt possible which would'still come with# in the scope of the invention. lI claim as' follows: .Y .v 1. In a liquid dispenser, 'the combination of a liquid reservoir having an opening in its lower end, a supporting base lfor supporting said reservoir, s aid base'having a guidey passageway, a dispensing plunger 'v sli'dable .vertically insaid passageway, a dispensingduct through said plunger closed-by tending to hold said plunger down, said plunger passagewayl being brought into' communication with said chamber when the said base when said plunger is down, la ca'sl' plunger is. raised, said orifice being suiiciently small topreventfilling.' of said chamber with liquid when the plunger is down whereby the air in said chamber above the liquid therein willl be compressed during upward movement of theplunger to force the liquid in said chamber downwardly through the plunger passageway. 2.v Ina dispensing device of the class described, .the combination of a supporting base, a. guide passageway therethrough, a

dispensing plunger shifting vertically in same when it is down, a dispensing passagedown, aV receptacle mounted on said basel and having an opening surrounding said [p plunger, a casing secured on said base above forced therethrough, and during each rethe plunger and plunger passageway y,and

forming a chamber,the top of said'casing having a restricted passageway for connecting said chamberwith the .reservoir and for lpreventing escape of `all the air in said chamber y'when the reservoir is filled, a

. spring tending to hold the plunger down,

upward movement of the plunger bringing its dispensing passageway into communication with said chamber and causing compression of the airin ysaid chamber'to force to its in `said chamber Yto draw '-ai'r thereinto through4 the dispensing vpassageway and` .liquid thereinto through said restricted ori- 3. In a dispensing device of the class vdescribed, theA combination of a vsupporting base, a vertical guide passageway therethrough, a plunger filling said passageway but slidable therein, said plunger having a dispensing duct therethrough closed at its upper end by said base when the plunger is vsaid passageway and adapted' to close the ist down, a liquid reservoir mounted on said base and surrounding the upper end of the plunger, a casing mounted on said base over the plunger end'and extending into said reservoir opening, said casing forming a chamber into which the plunger may pass when shifted upwardly,a spring resisting upward movement of the plunger; and a communicating passageway for connecting the top of said chamber with said reservoir, said communicating passageway bein restricted toprevent complete fllin o said chamber with liquid whereby W' en said Yplunger is'raised Vthe air entrapped in saidchamber will be compressed and liquid discharged from said chamber into and through said dispensing duct.

4. In a dispensing device of the class described, the combination of a supporting base, a vertical guide passageway therethrough, a plunger filling said passageway but slidable therein, said plunger having a dispensin duct therethrough closed at its upper en by said base when the plunger is down, a liquid reservoir mounted on said base and surrounding the upper end of the plunger, a casing mounted on said base over the` plungerend and extending into said reservoir opening, said casing forming a chamber into which the plunger may pass when shifted upwardly, a spring resisting upward movementof the plunger, said dispensin duct being brought into communica= tion with said chamber when the plunger is raised, a communicating passageway for, connecting the upper end of said chamber with v said reservoir, said communicating passageway being sufiiciently restricted to cause the entrapping of air in said chamber,

liquid are drawn into said chamber through the dispensing duct and communicating passageway respectively.

In a liquid dispensing device of the class described, the combination of a supporting base Yhaving a verticalfguide passageway therethrough, a dispensing plunger filling said passageway but slidable therein, said plunger havin a dispensing duct closed at its upper end y said base when said plunger is down, a hquid reservoir mounted on said base and having an opening, a casing on said base over the top of the plunger and extending into said reservoir opening, said frame forming a chamber into which the plunger may be raised to bringthe dispensing duct into communication wlth the chamber, and a communicating passageway connecting the top of said chamber with the reservoir, said communicating passageway being of such capacity relative to that of the dispensing duct that when said plunger is raised and lts passageway connected with said chamber part of the contents of said chamber will How through the dispensing duct and part through said communicating passageway.

In witness whereof I have hereunto subscribed my name this 21st day of May, A. D.

J EREMIAH G. MGENERY.