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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 |
| 6267043 | Brake actuator assembly The brake actuator assembly of this invention significantly reduces accumulation of road debris, reduces the weight of the push rod and yoke assembly and friction between the mating parts. The brake actuator includes a housing defining a chamber having an... | 07/31/2001 |
| 6105739 | Guide bushing The invention relates to a guide bushing between two components axially movable relative to each other, especially for guiding a piston rod subjected to longitudinal and transverse forces in the region of a piston rod seal of a hydropneumatic vibration da... | 08/22/2000 |
| 5826491 | Sealing arrangement on a piston-cylinder unit The device comprises a cylinder (3) and a piston (7) which is guided free of contact relative to the cylinder (3). A gap seal (12) is provided between the lateral surfaces (15, 14) of the cylinder (3) and of the piston (7). The gap seal (12) has a very th... | 10/27/1998 |
| 5791233 | Lifting column with telescoping guides The invention relates to a novel design of a lifting column, especially for patient tables or for industrial applications, with at least one lifting cylinder designed as a hydraulic cylinder at least for one vertical stroke and with at least one guide ass... | 08/11/1998 |
| 5609091 | Fluid power advancing unit A fluid power operated advancing unit has housing and a plunger adapted to run axially therein. The plunger is designed in the form of a three sided prismatic body at least along its length section running in the housing, said body being guided in the hou... | 03/11/1997 |
| 5406880 | Heavy equipment jack A double acting hydraulic jack comprising a housing from which at least two pistons extend, each of the pistons being telescopic with respect to one another and with respect to the housing, and a counterbalance valve between adjacent pistons. The counterb... | 04/18/1995 |
| 5098071 | Die spring apparatus A compressed gas and a liquid are contained in a cylinder. A liquid chamber containing the liquid and a gas chamber containing the gas are divided by a metallic bellows. The liquid chamber is situated on the side of an open end of the cylinder. A rod is i... | 03/24/1992 |
| 5086975 | Pressure washer with spring-less outlet to inlet bypass A pressure washer for delivering a liquid under high pressure has an inlet conduit connected to a liquid supply and an outlet conduit connected to a spray nozzle which can be operated to control the delivery of liquid through the nozzle. A bypass conduit ... | 02/11/1992 |
| 5058487 | Cylinder with radially movable rod A cylinder having a radially movable or pivoting rod slidably received in a floating gland disposed in a cavity or recess in an end cap of the cylinder. Preferably, seals are provided between the rod, gland and recess. Hence, the rod and gland can move ra... | 10/22/1991 |
| 5015000 | Floating seal arrangement A rod seal for a linear hydraulic or pneumatic actuator cylinder includes a seal ring that has a bore that closely matches the diameter of the rods, proximal and distal cylindrical portions and a central annular flange. A seat in the actuator cylinder dis... | 05/14/1991 |
| 5003863 | Cylinder-piston unit for displacing a roll at right angles to its longitudinal axis Located in a stationary frame is a cylinder-piston unit, the piston of which is adapted to displace the bearing housing of a roll in a paper-making machine at right angles to the longitudinal axis thereof. The bearing housing is guided in the frame with t... | 04/02/1991 |
| 4981199 | Hydraulic cylinder for an exerciser A double-rod hydraulic cylinder for an exerciser including a casing, a piston assembly and a universal joint. The piston assembly includes a piston head and two piston rods. Two bearings are respectively fixed to an inner wall of each closed end of the ca... | 01/01/1991 |
| 4940104 | Power-assisted steering apparatus A power-assisted steering apparatus of the type which includes a control valve arranged to control hydraulic fluid under pressure supplied to a hydraulic power cylinder from a hydraulic pump therethrough in response to the driver's steering effort applied... | 07/10/1990 |
| 4918924 | Turbocharging pressure controlling apparatus A turbocharging pressure controlling apparatus employing a diaphragm-type single acting air actuator includes a rod 33 to which is connected a control valve 13 for regulating the opening of a flow dividing hole 15 provided in an exhaust pipe 16 and which ... | 04/24/1990 |
| 4860640 | Air operated diaphragm spring brake An air-operated spring brake of the type wherein a spring-operated brake actuator is in tandem with an air-operated service brake actuator has a spring diaphragm which separates a spring housing into a fluid pressure chamber and a spring chamber. A spring... | 08/29/1989 |
| 4836094 | Yieldably mounted lubricant control assemblies for piston rods Improved lubricant control assemblies are disclosed for reciprocating piston rods of an engine which prevent crankcase lubricant intruding into the cylinders and fluid from the cylinders from escaping into the crankcase. Each assembly comprises a tubular ... | 06/06/1989 |
| 4790236 | Floating piston coupling for plunger type pumps A springless floating coupling for a plunger type pump connecting the drive plunger to a driven piston.... | 12/13/1988 |
| 4699355 | Fail-safe fluid piloted valve positioner with hydromechanical position lock A fail-safe system for use on a hydraulic piloted pressure reducing and regulating valve for holding the valve at the last selected operating pressure in the event of loss of control signals. A pressure regulating valve having a body and a control piston ... | 10/13/1987 |
| 4683806 | Piston guide for hollow piston of a radial piston engine In a radial piston engine, in order to reduce the friction forces appearing at the pistons, a guide part is provided which engages a hollow piston through a guide section and which includes a bearing section at its outer end, by means of which the guide p... | 08/04/1987 |
| 4667568 | Pull-type booster for vehicle A pull-type booster for a vehicle includes a main body having an internal space; a movable body including a head portion and a cylindrical portion formed integrally with the head portion, the head portion being arranged in the internal space and partition... | 05/26/1987 |
| 4653339 | Rack-and-pinion steering gear for a vehicle A rack-and-pinion steering gear structure for a vehicle including a rack housed within a cylinder driven by means of a pinion shaft, comprising: a bolt having a threaded portion screwed in a threaded hole formed in one end face of the rack and a shoulder ... | 03/31/1987 |
| 4597322 | Seal assemblies A seal assembly is arranged to contain leakage of hydraulic fluid passing between a wall opening and a penetrant rod portion passing through the opening. The seal assembly includes a sliding-seal member mounted on a portion of the rod for sliding movement... | 07/01/1986 |
| 4579046 | Yieldably mounted lubricant control assemblies for piston rods Improved lubricant control assemblies for reciprocating piston rods of an engine which prevent crankcase lubricant intruding into the cylinders and fluid from the cylinders from escaping into the crankcase. Each assembly comprises a tubular scraper fittin... | 04/01/1986 |
| 4566371 | Variable pneumatic pressure force-transmitting mechanism Attitude control mechanism for a flexible bag component of a composite pneumatic chamber including a fixed section over which an inturned portion of a flexible bag pneumatic chamber section rolls includes a cantilever bag attitude control stem having its ... | 01/28/1986 |
| 4549470 | Pneumatic actuator A pneumatic actuator is provided for a gate valve in a turbocharger system to control the bypass of exhaust gasses to regulate the speed of the turbocharger. The actuator includes a reciprocating rod connected at one end to a diaphragm and adapted to be c... | 10/29/1985 |
| 4478137 | Hydraulic brake actuator A hydraulic brake actuator for a wedge type brake includes a tubular structure extending from the brake and housing an extended end of a stem of the wedge of the brake therein. A primary cylinder is mounted on the tubular structure and includes a primary ... | 10/23/1984 |
| 4403538 | Turbocharger control actuator A control actuator for a turbocharger comprises an actuator rod coupled within an actuator housing to a pressure responsive diaphragm biased by a spring, and projecting out of the housing for connection to a turbocharger wastegate valve. A seal assembly o... | 09/13/1983 |
| 4399997 | Sealing bush unit for sealing reciprocating machine parts A sealing bush unit for sealing a reciprocating machine part has an annular bush with an inner diameter exceeding an outer diameter of the reciprocating pump to form a radial gap therebetween, a radially outer surface arranged so that a working pressure a... | 08/23/1983 |
| 4397220 | Air cushion for pneumatic impact tool The invention disclosed comprises an air cushion system that utilizes a two-diameter piston and a floating bushing to create an effective air cushion seal which prevents the piston from hitting the barrel bridge.... | 08/09/1983 |
| 4380273 | Spur rack hydrosteering A piston assembly is mounted at an inner axial end of the toothed portion of a rack within a tubular extension of a hydrosteering gear housing. The piston assembly includes a piston ring floatingly supported with axial clearance on the base portion of a m... | 04/19/1983 |
| 4373599 | Hydraulic rack steering system A hydraulic rack steering system is provided with a unitary seal assembly around a piston rod which is a composite of compressible toroidal gaskets having an intermediate pre-stressing ring constructed and arranged to radially stress a plastic sealing rin... | 02/15/1983 |
| 4262881 | Bottle jack anti-bind structure for rectangular lift post Anti-binding structure for jacks is provided which eliminates load-induced binding between an extended jack lift post and the guide structure therefor, so as to facilitate smooth jack operation. The jack of the invention preferably includes a rectangular ... | 04/21/1981 |
| 4251050 | Turbocharger control actuator A control actuator for a turbocharger comprises a diaphragm-displaced actuator rod projecting outwardly from an actuator housing through a seal permitting axial and angular rod movement for variably positioning a turbocharger wastegate valve.... | 02/17/1981 |
| 4211150 | Air cylinder A fluid operated cylinder is provided including a tube having rod end and blind end caps which are attached to the tube by radial plugs. The plugs permit relative movement between the rod end cap and the tube when the cylinder is operated to accommodate a... | 07/08/1980 |
| 4206684 | Hydraulic jack A hydraulic jack suitable for powering a large load such as an elevator or a drawbridge. In a first embodiment the hydraulic jack telescopes at a uniform rate over its entire distance of extension and includes a plunger member telescopingly enclosed withi... | 06/10/1980 |
| 4173881 | Rolling stand with hydraulic adjustment of the mill rolls A rolling stand with hydraulic adjustment of the mill rolls comprises a hydraulic cylinder whose piston is acted upon by the adjustment spindle and whose cylinder body, in turn, bears upon the block in which the back-up or pressure roll is journaled. The ... | 11/13/1979 |
| 4127186 | Power steering device for automotive vehicles An oil hydraulic power steering device of the rack and pinion type which includes a rack rod supported for lateral oscillation about a fulcrum adjacent one end thereof and a power actuator comprised of a piston secured to the rack rod, an outer cylinder, ... | 11/28/1978 |
| 4116114 | Double piston brake actuator Improved brake actuators of the type having both service chamber and spring emergency-parking chambers utilizing piston in each said chamber (no diaphragms); improved double piston brake actuator wherein the service chamber is inboard of the spring emerge... | 09/26/1978 |
| 4111100 | Non-rotatable fluid powered nozzle and valve combination This invention relates to a non-rotatable fluid powered nozzle and valve combination which includes a cylinder having a piston reciprocally received therein for movement between two reciprocated positions and which defines two separated fluid chambers the... | 09/05/1978 |
| 4074845 | Device for maintaining in position the piston of a fastener tool The device comprises on the front end portion of the plunger or piston a retaining ring mounted in the barrel with the interpositioning of a joint in such a way that the bore of the ring is slightly off-center relative to the piston axis when the joint is... | 02/21/1978 |
