US1694845A - Kneading device - Google Patents

Kneading device Download PDF

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Publication number
US1694845A
US1694845A US22997727A US1694845A US 1694845 A US1694845 A US 1694845A US 22997727 A US22997727 A US 22997727A US 1694845 A US1694845 A US 1694845A
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US
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Grant
Patent type
Prior art keywords
piston
rod
perforated
pistons
device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Trey Emanuel De
Original Assignee
Trey Emanuel De
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F11/00Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F11/008Mixers with shaking, oscillating, or vibrating mechanisms the stirrers performing an oscillatory, vibratory or shaking movement
    • B01F11/0082Mixers with shaking, oscillating, or vibrating mechanisms the stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/0026Syringes or guns for injecting impression material; Mixing impression material for immediate use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F13/00Other mixers; Mixing plant, including combinations of mixers, e.g. of dissimilar mixers
    • B01F13/0016Movable or transportable mixing devices or plants
    • B01F13/0018Movable mixing devices, i.e. apt to be shifted or displaced from one place to another, e.g. by human force
    • B01F13/002Movable mixing devices, i.e. apt to be shifted or displaced from one place to another, e.g. by human force portable during use, e.g. hand-held
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F13/00Other mixers; Mixing plant, including combinations of mixers, e.g. of dissimilar mixers
    • B01F13/0016Movable or transportable mixing devices or plants
    • B01F13/0018Movable mixing devices, i.e. apt to be shifted or displaced from one place to another, e.g. by human force
    • B01F13/002Movable mixing devices, i.e. apt to be shifted or displaced from one place to another, e.g. by human force portable during use, e.g. hand-held
    • B01F13/0023Of the syringe, cartridge type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F15/00Accessories for mixers ; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F15/00435Drives, e.g. for reciprocating motion; Transmissions; Brakes; Couplings
    • B01F15/00487Nature of the drive
    • B01F15/00506Hand driven

Description

Der- 11, 192s.

E. DE THEY KNEADING DEVICE Filed on.l alf Patented Dec. 11, 1928.

PATENT OFFICE.

EMANUEL DE TREY, OF ZURICH, SWITZERLAND.

KNEADING DEVICE.

Application filed October 31, 1927, Serial No. 229,977, and in Switzerland March 1G, 1927.

The subject matter of the present invention is a device for treating a paste adapted for making castings fordental purposes so as to render it ready for use. The device coniprises a barrel or cylinder for receiving a paste cartridge. Inside the cylinder two pistons coaxially movable relatively to each other are arranged, one of which is perforated for permitting its utilization as a kneading piston whilst the other has no perfora-tions in order to be used as an expelling piston. Thereby the perforated piston may be fixed to a piston rod endwise displaceable in the cylinder, that piston rod being surrounded by a second tubular piston rod for the non-perforated piston and axially displaceable relatively tothe first piston rod.

Both piston rods may be provided at their free ends with rings adapted to be held by the fingers of the operator to facilitate the displacement of the pistons.

A constructional example of the subject matter of the present invention is illustrated on the accompanying drawing, in which:

Fig. l shows the non-filled device in an axial section,

Fig. 2 shows the filled device in an axial section,

Fig. 3 is a plan view on an enlarged scale of the perforated piston.

In the drawing 1 denotes a cylinder, preferably made of metal, and provided at its lower end with a screw cap 2 to permit a paste cartridge 3 to beA inserted into the cylinder from below. 4.- is a piston fixed to a iston rod 5 which is provided at its upper en with two rings 6 by means of which the piston can be easily moved-up and down. The piston 4 is provided with perforations 7 (Fig. 3) through which the mass of the paste cartridge is forced repeatedly when the piston is reciprocated, whereby the aste iskneaded, the cylinder is preferably eated exteriorly during said operation for instance in a watery bath. The paste is thereby rendered pliant and suitable for the preparation ofcastings for dental purposes for instance by means of the known tooth-spoon.l Above the piston 4 a second piston 8 is provided which has no perforations and is fixed to a tubular piston rod 9 whichloosely surrounds the piston rod 5, and is provided at its upper end with rings l0 facilitating the upward and downward movement of the-piston 8. After the mass has been rendered pliant by a repeated up and down movement of the piston 4 the screw cap 2 is removed and the piston 8 is forced in the downward direction whereby the piston 4 follows the movement of the piston 8 when the former is in its uppermost position and the treated mass is expelled from the cylinder.

I claim:` t

l. A device of the type described, comprising in combination, a barrel, two pistons coaxially arranged in said barrel, one of said pistons being solid and the other perforated, and means adapted to reciprocate either of said pistons and independently or simultaneously of the other.

2. A device of the type described, comprising in combination, a barrel, two pistons coaxlally arranged in said barrel, one of said pistons being solid and the other perforated,

a piston rod xed to said perforated piston, and a hollow piston rod surrounding the first mentioned piston rod and fixed to said solid iston.

3. device of the type described, comprising in combination, a barrel, two pistons coaxially arranged in said barrel, one of said pistons being perforated and the other nonperforated, a piston rod fixed to said perforated piston and a hollow piston rod surrounding the first mentioned piston i'od and fixed to Said non-perforated piston, and a screw cap for closing said barrel.

4. A device of the type described, comprising in combination` a barrel, two pistons coaxially arranged in said barrel, one of said pistons being perforated and the other nonperforated, a piston rod fixed to said perforated piston anda hollow piston rod surrounding the first mentioned piston rod and l yfixed to said non-perforated piston, and handles on said piston rods for operating said pistons.

In testimony whereof, I havesigned my name to this specification.

EMANUEL DE TREY'.

US1694845A 1927-03-16 1927-10-31 Kneading device Expired - Lifetime US1694845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1694845X 1927-03-16

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US1694845A true US1694845A (en) 1928-12-11

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Family Applications (1)

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US1694845A Expired - Lifetime US1694845A (en) 1927-03-16 1927-10-31 Kneading device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100241A (en) * 1989-01-13 1992-03-31 Chan Kwan Ho Vacuum mixing/bone cement cartridge and kit
US20030012079A1 (en) * 2001-07-16 2003-01-16 Stryker Instruments Bone cement mixing and delivery device for injection and method thereof
US20040267272A1 (en) * 2003-05-12 2004-12-30 Henniges Bruce D Bone cement mixing and delivery system
US20050128867A1 (en) * 2003-05-12 2005-06-16 Henniges Bruce D. Bone cement mixing and delivery system
WO2005096978A1 (en) * 2004-03-30 2005-10-20 Sdgi Holdings, Inc. Surgical system for delivery of viscous fluids
US20050254340A1 (en) * 2002-06-28 2005-11-17 Staffan Grebius Device for mixing and delivering bone cement

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100241A (en) * 1989-01-13 1992-03-31 Chan Kwan Ho Vacuum mixing/bone cement cartridge and kit
US20030012079A1 (en) * 2001-07-16 2003-01-16 Stryker Instruments Bone cement mixing and delivery device for injection and method thereof
US6547432B2 (en) * 2001-07-16 2003-04-15 Stryker Instruments Bone cement mixing and delivery device for injection and method thereof
US20050254340A1 (en) * 2002-06-28 2005-11-17 Staffan Grebius Device for mixing and delivering bone cement
US7513679B2 (en) * 2002-06-28 2009-04-07 Asept Medical Ab Device for mixing and delivering bone cement
US20080025140A1 (en) * 2003-05-12 2008-01-31 Stryker Instruments Bone cement mixing and delivery system including a delivery gun and a cartridge having a piston, the delivery gun configured to release the piston
US8353622B2 (en) 2003-05-12 2013-01-15 Stryker Corporation Cartridge from which bone cement is discharged, the cartridge having a removably coupled nozzle
US20050128867A1 (en) * 2003-05-12 2005-06-16 Henniges Bruce D. Bone cement mixing and delivery system
US7393342B2 (en) 2003-05-12 2008-07-01 Stryker Corporation Bone cement mixing and delivery system including a delivery gun and a cartridge having a piston, the delivery gun configured to release the piston
US20040267272A1 (en) * 2003-05-12 2004-12-30 Henniges Bruce D Bone cement mixing and delivery system
US7677418B2 (en) 2003-05-12 2010-03-16 Stryker Corporation Bone cement cartridge with a releasably locked drive piston, the piston configured to be unlocked by a delivery device
US20110085411A1 (en) * 2003-05-12 2011-04-14 Henniges Bruce D Cartridge in which bone cement is mixed and from which bone cement is delivered, the cartridge having a compressible blade with plural vanes
US8061887B2 (en) 2003-05-12 2011-11-22 Stryker Corporation Cartridge in which bone cement is mixed and from which bone cement is delivered, the cartridge having a compressible blade with plural vanes
US8721600B2 (en) 2003-05-12 2014-05-13 Stryker Corporation Delivery 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
WO2005096978A1 (en) * 2004-03-30 2005-10-20 Sdgi Holdings, Inc. Surgical system for delivery of viscous fluids

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