| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 030320000 | Adjustable blade | 6 |
| 20100307011 | COMBINATION BLOWER, TRIMMER AND EDGER FOR TENDING VEGETATION - An engine is connected to the upper end of a drive shaft housing and a work head with a string trimmer or blower or both is operatively connected to the lower end of the drive shaft housing and is rotatably driven by an engine rotating a drive shaft inside the drive shaft housing and connected to the working head. The drive shaft housing is rigidly connected to the working head and may be rotated about its longitudinal axis relative to the engine in any desired amount of rotation, but the preferred degree of rotation is 135° to move the working head from a trimming position with the rotating trimmer string in a horizontal position to an edging position with the rotating trimmer string in a vertical position and with the working head being displaced to the operator's right side for better viewing and control and operator comfort. In one embodiment, a gear driven crank handle is rigidly connected to the drive shaft housing and is itself rotated 135° as the drive shaft housing is rotated 135° to place the handle in a position that is comfortable to use. Further, the amount of air flowing through the blower is regulated by an air outlet regulating valve and a separate air intake regulating valve. | 12-09-2010 |
| 20160089798 | Cutter Assembly Having a Screw-Locking Device - A cutter assembly has a blade holder, a blade, a slider and a screw-locking device. The blade is moveably mounted in the blade holder and has a moving direction. The blade holder has a bottom and multiple engaging segments disposed on the bottom along the moving direction of the blade. The slider is mounted slidably on the blade holder and connected to the blade. The screw-locking device is mounted on the slider and has a locking bolt and a locking sleeve screwed with each other. The locking bolt has an end selectively engaging at least one of the engaging segments. | 03-31-2016 |
| 030321000 | Pivoted | 4 |
| 20100218387 | HAIRDRESSER'S TOOL - A multifunctional hairdresser's tool, with which, in combination with an assortment of replaceable blades, different cutting techniques can be carried out. The tool comprises a holder ( | 09-02-2010 |
| 20130333230 | UTILITY KNIFE APPARATUS WITH BLADES HAVING MULTIPLE CUTTING EDGES - A utility knife employing a blade having multiple cutting edges, and a means for quickly and simply swapping out one cutting edge for another. In a preferred embodiment, a six-cutting-edge featured blade is employed. Each point of the six-cutting-edge featured blade features two distinct cutting edges, for a total of six cutting edges located on a single blade. The blade can be rotated about a central axis to expose new cutting edges as old edges wear and dull. In another embodiment, a single-edged blade featuring two cutting faces is housed in a knife handle. The blade can be flipped when the first edge is dull or worn to expose a second cutting face. The handle may optionally include a storage space for storing additional blades. | 12-19-2013 |
| 20140041238 | UTILITY KNIFE WITH PIVOTING BLADE - A utility knife is provided that has an elongated main body portion and a head assembly that is separate from the main body portion. The main body portion has a handle assembly. A main body fastening mechanism is provided at one distal end of the handle assembly, and a handle assembly fastening mechanism is provided at one end of the handle assembly. A threaded pin pivotally fastens the main body portion to the head assembly by connecting the main body fastening mechanism to the handle assembly fastening mechanism. Accordingly, the head assembly can pivot with respect to the main body portion and handle assembly, so that the utility knife can be configured to cut an object at different angles, which can be particularly useful for the knife to fit in a tight cutting space. | 02-13-2014 |
| 20140144028 | UTILITY KNIFE WITH PIVOTING HEAD ASSEMBLY - A utility knife is provided that has an elongated main body portion and a head assembly that is separate from the main body portion. The main body portion has a handle assembly. A main body fastening mechanism is provided at one distal end of the handle assembly, and a handle assembly fastening mechanism is provided at one end of the handle assembly. A threaded pin pivotally fastens the main body portion to the head assembly by connecting the main body fastening mechanism to the handle assembly fastening mechanism. Accordingly, the head assembly can pivot with respect to the main body portion and handle assembly, so that the utility knife can be configured to cut an object at different angles, which can be particularly useful for the knife to fit in a tight cutting space. | 05-29-2014 |
