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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 7096963 | Swing arm crane and method An apparatus for lifting and moving a load. The apparatus comprises a lift frame having a first and second vertical member that are connected so that a working window area is defined. The apparatus further comprises a rotary actuator mounted on the first vertical me... | 08/29/2006 |
| 6965230 | Apparatus and method for determining the position of the end of a threaded connection, and for positioning a power tong relative thereto Apparatus and method for positioning a power makeup/breakout device, commonly referred to as a “power tong unit,” along the longitudinal axis of a tubular, with respect to the end of a connection. A probe having an electric coil is mounted on the power tong. An ... | 11/15/2005 |
| 6216797 | Thrust system for a horizontal directional drill A thrust system for a horizontal directional drill is provided. The thrust system includes a drill boom having a drive sprocket positioned at the first end thereof and a driven sprocket positioned at the second end thereof. A carriage for supporting the h... | 04/17/2001 |
| 4703811 | Drilling and/or lifting machine This invention relates to a drilling and/or lifting machine, in particular a track-mounted drilling and lifting rig. The machine comprises a movable carriage, a first lifting and/or tool carrying device (A), a support (2, 4, 5) mounting the first lifting ... | 11/03/1987 |
| 4641716 | Method and equipment for rock drilling A drilling equipment and a method is intended for horizontally boring rocks with a low bench height. The drilling equipment can be used as an accessory to an ordinary dredger or the like. The whole drilling equipment is arranged to turn in a plane paralle... | 02/10/1987 |
| 4601000 | Electrohydraulic control system for a rockdrill assembly An electrohydraulic control system for an arm assembly of the type described in U.S. Pat. No. 4,364,540 utilizes an electric computer (microprocessor) which receives a nonlinear or harmonic signal from the rotary hydraulic motor of the arm of this assembl... | 07/15/1986 |
| 4537263 | Method and means for adjusting the feed support of a rock drilling unit into a given distance from the drilling location The feed support of a rock drilling unit is adjusted to be a given distance from a rock surface wherein holes are to be drilled. A drill bit is moved into abutment with the rock surface. The feed support is moved relative to the bit toward the rock surfac... | 08/27/1985 |
| 4453773 | Pavement breaking apparatus Apparatus for breaking concrete and asphalt pavement and the like comprising a frame adapted to be supported by and above pavement to be broken. Power operated means move the frame in one and opposite directions relative to and in parallel relationship wi... | 06/12/1984 |
| 4436455 | Universally positionable low profile mine drilling machine and method An electric power actuated rubber tired carriage having a height profile substantially that of the tires on the wheels includes machinery for universally positioning in three separate degrees of motion a rotatable auger for drilling holes into mine tunnel... | 03/13/1984 |
| 4364540 | Support-arm assembly for a drill or borer, particularly for subterranean applications A mining drill comprising a rail along which a mining drill head is slidably rectilinear, this rail being carried by a hydraulic motor pivotally connected to a rotary head at the end of an arm swingable about a pivot axis which is generally horizontal and... | 12/21/1982 |
| 4347692 | Portable drilling rig A portable drilling rig for mounting on a flatbed truck or other carrier vehicle, includes a turntable rotatably mounted on the truck bed; a slide pivotally mounted on the top of the turntable for rotation around a horizontal axis; a hydraulic cylinder in... | 09/07/1982 |
| 4315550 | Self-propelled apparatus for setting cemetery markers and the like A wheeled, self-propelled apparatus has a percussion tool or hammer mounted on its forward end and an impact transmitting means carried on the tractor below the hammer. The impact transmitting means is adapted to be mounted to transmit repeated impacts fr... | 02/16/1982 |
| 4288056 | Device for setting the direction and/or the inclination of an elongated rock drilling apparatus A device for setting the direction and/or inclination of an elongated rock drilling apparatus. The actual value of the direction in each of two perpendicular planes is sensed by a rotatable screen having a pattern of parallel opaque lines separated by int... | 09/08/1981 |
| 4264051 | Laterally adjustable multiple head Drilling equipment comprises a single boom supporting a plurality of drilling masts each provided with a drilling machine, adjustment means being provided to simultaneously adjust the relative positions of the drilling masts.... | 04/28/1981 |
| 4251046 | Extensible beam arrangement Rock drilling equipment includes a boom carrying an extensible beam arrangement supporting a drilling mast, the extensible beam arrangement comprising a support pivotally mounted on the boom, a first elongated element slidably mounted on the support for m... | 02/17/1981 |
| 4230372 | Dual rock cutter wheel trencher Apparatus and method for digging deep vertical walled trenches in solid rock such as limestone. The apparatus comprises a base supported by four crawler type traction means. A turntable is translatably carried by the base and in turn supports a prime move... | 10/28/1980 |
| 4212358 | Posthole digging apparatus A self-propelled posthole digging machine having a vertical drilling assembly mounted on one side thereof by means of an undercarriage frame attachment. This assembly comprises a vertical guide assembly which is movable laterally from the undercarriage an... | 07/15/1980 |
| 4203266 | Mast leveling and support apparatus A box-like platform having a mast leveling hinge support anchored thereto and a mast structure pivotally attached to the upper end of the hinge support is pivotally attached at one of its ends to an elongated skid unit. The opposite end of the platform is... | 05/20/1980 |
| 4190120 | Moveable guide structure for a sub-sea drilling template A sub-sea template and moveable guide structure assembly for conducting sub-sea drilling and production operations selectively between a plurality of adjacent sub-sea wells has a sub-sea well template having a plurality of template sections, each of these... | 02/26/1980 |
| 4132276 | Arrangement for forming vertical or steeply inclined shafts A stopping apparatus is suspended in a pilot shaft and blasting charge holes are drilled outwardly and downwardly from successive vertical positions from the bottom to the top of the pilot shaft to provide a circular array of holes fanned-out from each ve... | 01/02/1979 |
| 4126193 | Mobile drilling apparatus Drilling apparatus mounted on a self-propelled base equipped with a joint to permit use on uneven terrain and drilling at various angles with respect to the terrain surface; embodiments of the invention feature suction apparatus for removing drill cutting... | 11/21/1978 |
| 4124081 | Post driving machine An improved portable hydraulically powered driving machine, for driving posts, ground anchors, concrete breakers, core drills, and the like work pieces into the ground, pavements or wall structure, has a tower in the form of a stanchion carried by an exte... | 11/07/1978 |
| 4106225 | Method and apparatus for excavating underpinning holes An underpinning excavator which comprises a crane having a horizontal beam and a boom extending angularly upwardly and outwardly above the beam and a digging assembly which includes a vertical rod suspended from the boom and a clamshell digger affixed to ... | 08/15/1978 |
| 4102094 | Bottom brace for crane There is disclosed herein a portable crane having a boom and lower brace supporting an elongated lead adapted to carry a pile driver, drill or other tool. The outer end of the brace has a capstan drive connected to a lead supporting line whereby the brace... | 07/25/1978 |
| 4068895 | Demolition machine for delining a furnace The masonary or refractory material employed in the lining of blast furnaces has to be demolished, torn out, reconditioned, or replaced periodically, due to wear and deterioration of such material and the subject invention involves improved equipment or a... | 01/17/1978 |
| 4050526 | Post driving machine A portable hydraulic actuated machine for driving posts, ground anchors, concrete breakers, core drills and the like work pieces into the ground, pavements, or wall structures, maintains a continuing thrust on the work piece amplified by sequential hammer... | 09/27/1977 |
