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Publication numberUS1612996 A
Publication typeGrant
Publication dateJan 4, 1927
Filing dateFeb 23, 1926
Priority dateFeb 23, 1926
Publication numberUS 1612996 A, US 1612996A, US-A-1612996, US1612996 A, US1612996A
InventorsHerman Waagbo
Original AssigneeHerman Waagbo
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cream-testing device
US 1612996 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

H. WAAGBO CREAM TESTING DEVICE Filed Feb. 23, 1926 2 INVENTOR. Hi/MMUMA M/ d/b 0 M W 6 mm! ATTORNEY.

Jan. 4,1927. 1

VVV////// Patented Jan. 4, 1927.

HERMAN WAAGBO, OF NORTHPORT, MICHIGAN";

Application filed February '23, 1926.

My device relates .pri-maricREAM-r-ns'rnw DEV-ICE.

1y to apparatus used by creamerles and the like in the testing of cream and other purposes but it may also be used :for any purpose in which it is necessary to obtain a small, exact amount of any liquid. Its purpose is to make .a device that shall make it possible to quickly 'draw in and discharge a close approximation to the exact amount and then quickly adjust it to practically absolute exactness, one operation.

1 obtain these purposes substantially at .by the means shown in the accompanying drawings in which Figure 1 is .a

longitudinal section of my device through the center of the piston rod on the line '2-2 of Figure '2. Figure 2 is a similar section taken on the line 2-2 of Figure 1. Figure 1 shows the parts 111 .po-

sition in which the cream into the device.

is being drawn Figure 2 shows the parts in position in which the cream has been completely expelled from the de vice.

Referring more particularly to the draw- .ings, 1 is the main body of my the top and closed by a cap 2. It

is open at is narrowed at the bottom device which to form a very small second cylinder 3. A piston 4 provided with a hollow rod 5 moves air tight in the body 1 and a second ed inside the able in the small cylinder 3, low rod. I have found by the length of the opening in 5 is such that the cylinder is piston 6 is mounthollow rod .5 and is freely slidand in the holexperience that the hollow rod sufliciently close without the use of any packing, but as stated above, packing may be used out departing from my plate 7 provided attached to the upper end of invention. wlth a thumb opening 8 is if desired with- A flat the rod 5 and a thumb piece 9 to the upper end of'the rod 6.

The opening 8 is placed at a distance from the top of the rod 5 substantially equal to the length of the opening in inder 3.

For the purpose the small cylof holding the device firmly in operation, rings 10 are attached, but

firmly by the rings device is immersed other proper holding device may be emm my invention.

device is as follows 10 the in the is raised by the 9 until it comes opposite the small quantity of r 3. When this of the piston 6 not quite, supply the desired amount.

Serial No. 90,024.

tended through the opening 8 and the two pistons are withdrawn together until the entire body 1 is fullof cream. It is then placed over the containing dish and the two pistons are pushed down together until the large piston reaches the bottom of its stroke which is so adjusted that it will nearly, but The thumb is then released from the openin 8 and the small piston is pushed down ischarging the cream from the small cylinder 3 drop by drop until the desired amount is obtained. An adjusting ring 12 is mounted so as to slide freely and be readily removed from the rod 5 for the purposeof regulating the amount of cream that may be drawn into the main body. The adjustment is made by using longer or shorter rings .as may be desired.

I claim as my invention and desire to secure by Letters Patent:

1. Ina device of the character described, a tubular main body narrowed at one extremity, said narrowed extremity provided with a substantially cylindrical discharge orifice; a piston mounted in said main body and provided with a second .piston rod,

hollow piston rod; a

charge orifice, slidably mounted in said first mentioned rod, and means for operating said piston rods either simultaneously or separately as desired.

2. In a device of the character described,

a tubular main body narrowed at one extremity, said narrowed extremity provided and provided near its adapted to it said dis- 3. In a device of the character described, I

a tubular main body narrowed at one extremity, said narrowed extremity provided with a substantially cylindrical discharge orifice; a piston mounted in said main body and provided with a hollow piston rod; a

second piston rod, adapted to fit said discharge orifice, slidably mounted in said first mentioned rod; means for operating said piston rods either simultaneously or sepa rately as desired; a thumb piece adapted to said hollow piston rod and provided near its upper extremity with an opening adapted to said second piston rod, and hollowed to receive the thumb and adapted to co-act with said first mentioned thumb piece when brought in line with the opening therein.

4:. In a device or the character described, a tubular main body narrowed at one extre1nity and provided with a cap at the other extremity, said narrowed extremity provided with a substantially cylindrical discharge orifice; a piston mounted in said main body and provided with a hollow piston rod; a second piston rod, adapted to fit. said discharge orifice, slidably mounted in said first mentioned rod; means for operating said piston rods either simultaneously or separately as desired; a thumb piece adapted to said hollow piston rod and provided near its upper extremity with an opening adapted to receive the end of the thumb; a second thumb piece adapted to said second piston rod, and hollowed to receive the thumb and adapted to co-act with said first mentioned thumb piece when brought in line with the opening therein.

5. In a device of the character described, a tubular main body narrowed at one extremity and provided with a cap at the other extremity, said narrowed extremity provided with a substantially cylindrical discharge orifice; a piston mounted in said main body and provided with a hollow piston rod; a second piston rod, adapted to fit said dischar e orifice, slidably mounted in said first mentioned rod; means for operating said piston rods either simultaneously or separately as desired; a thumb piece adapted to said hollow piston rod and provided near its upper extremity with an opening adapted to receive the end of the thumb; a second thumb piece adapted to said second piston rod, hollowed to receive the thumb and adapted to co-act with said first mentioned thumb piece when brought in line with the opening therein, and finger pieces connected to said device to retain it in operative position. 7

6. In a device of the character described, a tubular main body narrowed at one extremity and provided with a cap at the other extremity, said narrowed extremity provided with a substantially cylindrical discharge orifice; a piston mounted in said main body and provided with a hollow piston rod; a second piston rod, adapted to fit said discharge orifice, slidably mounted in said first mentioned rod; means for operating said piston rods either simultaneously or separately as desired; a thumb piece adapted to said hollow piston rod and provided near its ing adapted to receive the end of the thumb; a second thumb piece adapted to said second piston rod, hollowed to receive the thumb and adapted to co-act with said first mentioned thumb piece when brought in line with the opening therein; finger pieces connected to said device to retain it in operative position, and means for regulating the stroke of said first mentioned piston.

HERMAN waaeso.

upper extremity with an open-

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3216616 *Mar 2, 1964Nov 9, 1965Blankenship Jr HomerSyringe with upper and lower bores
US4526303 *Oct 26, 1983Jul 2, 1985Dentsply Research & Development Corp.Syringes
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US6599293Jul 16, 2001Jul 29, 2003Stryker InstrumentsDelivery device for bone cement
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US6796987Jun 11, 2002Sep 28, 2004Stryker InstrumentsDelivery device for bone cement
US7112205Jun 17, 2003Sep 26, 2006Boston Scientific Scimed, Inc.Apparatus and methods for delivering compounds into vertebrae for vertebroplasty
US7134782Mar 16, 2004Nov 14, 2006Stryker InstrumentsBone cement mixing and delivery device with releasable mixing blade
US7306361Feb 8, 2006Dec 11, 2007Stryker CorporationBone cement mixing and delivery system with multiple advancement mechanisms and method of use
US7320540Mar 27, 2006Jan 22, 2008Stryker CorporationBone cement mixing and delivery device with releasable mixing blade
US7393342Aug 13, 2007Jul 1, 2008Stryker CorporationBone cement mixing and delivery system including a delivery gun and a cartridge having a piston, the delivery gun configured to release the piston
US7513679 *Jun 23, 2003Apr 7, 2009Asept Medical AbDevice for mixing and delivering bone cement
US7677418Jun 13, 2008Mar 16, 2010Stryker CorporationBone cement cartridge with a releasably locked drive piston, the piston configured to be unlocked by a delivery device
US8038682Aug 17, 2004Oct 18, 2011Boston Scientific Scimed, Inc.Apparatus and methods for delivering compounds into vertebrae for vertebroplasty
US8061887Feb 12, 2010Nov 22, 2011Stryker CorporationCartridge in which bone cement is mixed and from which bone cement is delivered, the cartridge having a compressible blade with plural vanes
US8066713Mar 31, 2003Nov 29, 2011Depuy Spine, Inc.Remotely-activated vertebroplasty injection device
US8220985 *Feb 7, 2007Jul 17, 2012Dow Global Technologies LlcRetractable pin mixing sample forming device
US8333773Aug 30, 2007Dec 18, 2012Depuy Spine, Inc.Remotely-activated vertebroplasty injection device
US8353622Nov 11, 2011Jan 15, 2013Stryker CorporationCartridge from which bone cement is discharged, the cartridge having a removably coupled nozzle
US8360629Jul 6, 2006Jan 29, 2013Depuy Spine, Inc.Mixing apparatus having central and planetary mixing elements
US8361078Jun 16, 2009Jan 29, 2013Depuy Spine, Inc.Methods, materials and apparatus for treating bone and other tissue
US8415407Feb 22, 2006Apr 9, 2013Depuy Spine, Inc.Methods, materials, and apparatus for treating bone and other tissue
US8540722Jun 16, 2009Sep 24, 2013DePuy Synthes Products, LLCMethods, materials and apparatus for treating bone and other tissue
US8579908Sep 22, 2004Nov 12, 2013DePuy Synthes Products, LLC.Device for delivering viscous material
US8721600Nov 30, 2012May 13, 2014Stryker CorporationDelivery gun for dispensing bone bement from a cartridge, the gun having a multi-link linkage and capable of dispensing the cement at different flow rates
US8809418Mar 11, 2013Aug 19, 2014DePuy Synthes Products, LLCMethods, materials and apparatus for treating bone and other tissue
WO2003008080A1Jan 31, 2002Jan 30, 2003Stryker InstrBone cement mixing and delivery device for injection and method thereof
Classifications
U.S. Classification222/252, 222/386
International ClassificationG01N1/14
Cooperative ClassificationG01N1/14
European ClassificationG01N1/14