Device and method for mixing of a multi-component cement

Patent metadata

Field	Value
Publication number	US-10098683-B2
Application number	US-201514710847-A
Country	US
Kind code	B2
Filing date	May 13, 2015
Priority date	May 15, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A manually drivable device for the mixing of a pasty mixing ware from at least two fluid starting components comprising at least two cartridges having feed plungers; a mixing space to mix the starting components, mixing vanes being provided in the mixing space and mounted such that they can rotate; a lever rotatable about a pivot point operatable manually or a pin that can be shifted in longitudinal direction and operatable manually in order to operate the device; a gear connected to the lever or pin, and connected to the rotatable mixing vanes in the mixing space; and a facility for propelling the feed plungers such that the motion of the lever or pin drives the rotation of the mixing vanes in the mixing space and motion of the feed plungers into the cartridges. The invention also relates to a method for mixing fluid starting components using the device.

First claim

The invention claimed is:

1. A manually drivable device for mixing of a pasty mixing ware from at least two fluid starting components, said device comprising:
at least two cartridges containing the fluid starting components or at least two connectors for at least two cartridges containing the fluid starting components, whereby feed plungers are provided in the cartridges for expelling the starting components from the cartridges;
a mixing space for the mixing of the starting components that is connected to the cartridges or connectors for the cartridges such that the starting components are guided into the mixing space when the starting components are expelled from the cartridges by the feed plungers, whereby mixing vanes are provided in the mixing space and are mounted in the mixing space such that they can rotate;
a lever that can be rotated about a pivot point and can be operated manually for operation of the device or a pin that can be shifted in the longitudinal direction and can be operated manually in order to operate the device;
a gear connected to the lever or pin, whereby the gear is appropriately connected to the rotatable mixing vanes in the mixing space such that the mixing vanes can be rotated in the mixing space upon a motion of the lever or pin mediated by the gear, wherein a clutch is provided in the connection of the gear to the mixing vanes, whereby the clutch allows the mixing vanes to rotate in one direction of rotation and prevents or reduces rotation in the opposite direction of rotation; and
a facility for propelling the feed plungers in the cartridges, appropriately connected to the lever or pin such that the feed plungers can be propelled in the cartridges upon a motion of the lever or pin, such that the motion of the lever or pin drives the rotation of the mixing vanes in the mixing space and the motion of the feed plungers into the cartridges.

2. The device according to claim 1 , wherein
the mixing vanes are inclined consistently with respect to the axis about which the mixing vanes rotate in the mixing space such that the rotation of the mixing vanes in the mixing space causes the mixing ware to be propelled in the mixing space.

3. The device according to claim 1 , wherein
the gear is force-locking and/or form-fitting.

4. The device according to claim 1 , wherein
the gear comprises at least one tooth lock washer, at least one friction disk, at least one cogwheel, at least one worm wheel and/or at least one friction wheel by means of which force and/or torque is transmitted.

5. The device according to claim 1 , wherein
the gear is a cogwheel gear, a friction wheel gear, a conical wheel gear, a contrate gear, a worm gear or a combination of said gears.

6. The device according to claim 1 , wherein
the mixing vanes are arranged on a rotary shaft that is mounted such as to be rotatable, whereby the rotary shaft extends out of the mixing space, and the rotary shaft is connected to the gear such that the rotary shaft with the mixing vanes can be rotated in the mixing space by means of a motion of the lever or pin.

7. The device according to claim 6 , wherein
the clutch is provided in the rotary shaft.

8. The device according to claim 1 , wherein the clutch is
a sprung rotating clutch provided in the connection from the gear to the mixing vanes.

9. The device according to claim 1 , wherein
the facility for propelling the feed plungers in the cartridges is a clamp rod having a tiltable jamming opening or a gear rack having a unidirectionally-acting snap-in locking means, whereby the jamming opening or the snap-in locking means is connected to the lever or the jamming opening or the snap-in locking means is connected to the pin.

10. The device according to claim 1 , wherein
at least one manually-opening valve element or manually-opening closures is/are arranged in the connection between the mixing space and the cartridges or in the connectors for the cartridges.

11. The device according to claim 1 , wherein
the device comprises a handle for holding the device by one hand, whereby the lever or the pin or an operating element for manual operation of the lever or pin is arranged appropriately in the region of the handle such that the lever or pin or operating element can be operated by the same hand that holds the device by the handle.

12. The device according to claim 1 , wherein
the mixing space comprises a dispensing opening for application of the mixing ware on a side opposite from the connection to the cartridges.

13. The device according to claim 1 , wherein
static shearing elements for mixing of the mixing ware are arranged in the mixing space.

14. The device according to claim 1 , wherein
a circular arc or circular arc section is arranged on the lever and has on its front face or its side surface a driving row of cogs or a friction surface arranged by means of which a cogwheel or friction wheel of the gear can be driven or in that a serration or a friction surface is arranged on the pin by means of which a cogwheel or friction wheel of the gear can be driven.

15. The device according to claim 1 , wherein
the gear comprises an appropriate transmission ratio such that, upon a full motion of the lever or pin, the mixing vanes perform at least 2 turns in the mixing space.

16. The device according to claim 1 , wherein
the facility for propelling the feed plungers in the cartridges is appropriately connected to the lever or pin such that, upon a full motion of the lever or pin, the feed plungers are propelled in the cartridges by at least 1 mm.

17. The device according to claim 1 , wherein
the facility for propelling the feed plungers in the cartridges is appropriately connected to the lever or pin such that the feed plungers expel at least 90% of the starting components from the cartridges upon 5 to 25 full motions of the lever or pin.

18. A method for the mixing of fluid starting components, said method being carried out with the device according to claim 1 , said method comprising:
tilting the lever or moving the pin of said device in the longitudinal direction;
a force produced by tilting the lever or moving the pin propelling the feed plungers in the at least two cartridges and pressing the starting components contained in the cartridges into the mixing space by means of the feed plungers; and
the force produced by tilting the lever or moving the pin rotating the mixing vanes in the mixing space, whereby the transmission of the force of the lever or pin for rotating of the mixing vanes is effected by means of the gear wherein the lever or pin, after being moved, is restored to a starting position by a restoring element, whereby the feed plungers are not moved and the mixing vanes are not rotated during said restoration to the starting position.

19. The method according to claim 18 , wherein
the rotating of the mixing vanes in the mixing space mixes the starting components in the mixing space and conveys them in the direction of a dispensing opening.

20. The method according to claim 18 , wherein
the gear is driven by means of a sprocket wheel or friction sprocket wheel on the lever or a row of cogs or a friction surface on the pin.

21. The method according to claim 18 , wherein
the motion of the pin or lever is repeated in order to empty the cartridges by at least 90%.

22. The method according to claim 18 , wherein
the gear transmits a full stroke of the lever or pin into at least 2 turns of the mixing van

Assignees

• Heraeus Medical Gmbh

Inventors

• Vogt Sebastian

Classifications

• B01F7/00141

  Operations & Transport · mapped topic

• B05C17/0123

  Lever actuated · CPC title

• B01F7/00133

  Operations & Transport · mapped topic

• B01F13/0027

  Operations & Transport · mapped topic

• B01F15/0226

  Operations & Transport · mapped topic