| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 366016000 | With ingredient proportioning | 6 |
| 20080225631 | CONTINUOUS FEED CEMENT MIXER - A continuous feed mixer for cement or other mixtures includes a mixing tube which is inclined downward from a feed end to a mixing end. Cement solids are deposited at the feed end. Water is introduced at various locations along the length of the mixing tube to provide a proper proportion of solids and water. The mixing tube is rotated to provide the desired mixing process. A scraper is positioned within the mixing tube to remove material from an inner wall of the mixing tube during the mixing process. | 09-18-2008 |
| 20150049572 | CEMENT PRODUCTION APPARATUS - To provide a cement production apparatus which can pre-heat uniformly material supplied to cyclones above a duct, improve heat-exchanging efficiency, and perform an operation with low pressure loss and small energy consuption. | 02-19-2015 |
| 366018000 | By weight | 2 |
| 20080259715 | Concrete Batch Plant - A concrete batch plant ( | 10-23-2008 |
| 20150124550 | ATMOSPHERIC STORAGE MECHANICAL WEIGHT BATCH BLENDING PLANT - An atmospheric storage mechanical weigh batch blend plant is shown with atmospheric storage for providing a dry, pre-blend, oilfield cement ready for mixing at the wellhead for slurry injection into a well head upon adding the proper amount of water and other fluids. The batch blend plant has three separate weighing mechanisms for (a) larger or bulk quantity materials, (b) intermediate quantities of materials, and (c) small amounts of additives to be included to the mixture. The entire weigh batch blend plant can be disassembled and moved. A pneumatic system is used to move the materials and mixture. | 05-07-2015 |
| 366019000 | By volume | 1 |
| 20090231949 | WATER CONTROL APPARATUS - An embodiment for a water control apparatus is disclosed that may be used with a concrete mixing assembly. The apparatus may include flowmeter unit and a normally closed valve unit. The normally closed valve unit may be in fluid communication with, and removably connected to, the flowmeter unit. A control unit may be provide that may monitor the flowmeter unit and electronically control the opening of the normally closed valve unit. A switch may be also provided for that may electrically communicate with the control unit to. The activation of the switch being operable to cause the normally closed valve to open and result in the flow of water into a concrete mixing drum that is in fluid communication with the normally closed valve. | 09-17-2009 |
| 366020000 | By screw conveyor charging means | 1 |
| 20100135101 | MINIMUM ADJUSTMENT CONCRETE DELIVERY SYSTEM - A concrete delivery system includes a hopper having an open top and a discharge opening therein. A belt is trained around the front roller and the rear roller and the discharge opening is provided at the lower end of the hopper. A first positive displacement pump is connected to the liquid container and is driven by a rotatable shaft attached to one of the front or rear rollers for delivering the liquid from the liquid container to the mixer. A mixer is provided for mixing the material with the liquid and concrete mixture. The device includes a minimum of adjustment controls. An add mix fluid attachment may also be included in the addition to the liquid dispenser and this is controlled by the same shaft as the liquid dispenser is controlled. | 06-03-2010 |
