US1694845A - Kneading device - Google Patents

Kneading device Download PDF

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Publication number
US1694845A
US1694845A US229977A US22997727A US1694845A US 1694845 A US1694845 A US 1694845A US 229977 A US229977 A US 229977A US 22997727 A US22997727 A US 22997727A US 1694845 A US1694845 A US 1694845A
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United States
Prior art keywords
piston
perforated
pistons
piston rod
barrel
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Expired - Lifetime
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US229977A
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Trey Emanuel De
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/0026—Syringes or guns for injecting impression material; Mixing impression material for immediate use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
    • B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3202—Hand driven

Definitions

  • 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.
  • 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.
  • 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.
  • FIG. 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.
  • 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.
  • 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.
  • 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,
  • 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.
  • 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 and a 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.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

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'.
US229977A 1927-03-16 1927-10-31 Kneading device Expired - Lifetime US1694845A (en)

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Cited By (7)

* 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
US20200122101A1 (en) * 2017-06-28 2020-04-23 University Of Tasmania Liquid-liquid mixing device suitable for sample preparation by liquid-liquid extraction

Cited By (17)

* 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
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
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
US20050128867A1 (en) * 2003-05-12 2005-06-16 Henniges Bruce D. Bone cement mixing and delivery system
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
US8353622B2 (en) 2003-05-12 2013-01-15 Stryker Corporation Cartridge from which bone cement is discharged, the cartridge having a removably coupled nozzle
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
US20200122101A1 (en) * 2017-06-28 2020-04-23 University Of Tasmania Liquid-liquid mixing device suitable for sample preparation by liquid-liquid extraction
US11590463B2 (en) * 2017-06-28 2023-02-28 University Of Tasmania Liquid-liquid mixing device suitable for sample preparation by liquid-liquid extraction

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