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A hand held portable blower/vacuum assembly includes a gasoline engine mounted on a blower housing that is interchangeably operable as a blower or vacuum unit and is symmetrically arranged for right or left hand use. A U-shaped carrying handle is secured to an upper housing enclosing the engine by m

A hand held portable blower/vacuum assembly includes a gasoline engine mounted on a blower housing that is interchangeably operable as a blower or vacuum unit and is symmetrically arranged for right or left hand use. A U-shaped carrying handle is secured to an upper housing enclosing the engine by means of a mounting structure that includes anti vibration elements. For eliminating the effect of both gyroscopic and centrifugal forces, the engine is arranged with the piston and crankshaft in horizontal and vertical orientations respectively, while both exhaust and cooling air are discharged from the front of the unit away from an operator so as to provide a balanced unit operable with either the right or left hand. A multi-position throttle located on the backside of the unit removed from the handle is incrementally settable for operating the unit at preselected fixed speeds. The vacuum inlet is located on the underside of the housing and is generally closed by a hinged cover providing only for induction air flow when the unit is used in the blower mode. Included about the vacuum inlet is a connecting flange for attaching a vacuum intake tube when the cover is hingedly moved outward for using the unit in the vacuum mode. A discharge opening on the front side of the unit includes a connecting flange to which either a blower tube and nozzle can be attached for the blower mode or tubing and bag can be attached for the vacuum mode.

대표청구항 ▼

A portable power tool comprising an internal combustion engine, a first housing enclosing said internal combustion engine, a blower unit mounted on the underside of said internal combustion engine and having a second housing containing a blower impeller operably connected to the crankshaft of said i

A portable power tool comprising an internal combustion engine, a first housing enclosing said internal combustion engine, a blower unit mounted on the underside of said internal combustion engine and having a second housing containing a blower impeller operably connected to the crankshaft of said internal combustion engine, an operator\s handle mounted along the top of said first housing, said internal combustion engine being arranged with its crankshaft in a substantially vertical orientation relative to the normal carrying mode of said tool, said second housing including a vacuum opening defined in the bottom wall thereof and a discharge opening defined in a sidewall thereof, connecting means at said openings adapted for connecting appurtenances enabling interchangeably operating said tool alternatively in either a blower mode or a vacuum mode including a tubular collar surrounding each of said openings adapted to receive a tubular extension for mounting thereat and clamp means associated with each of said collars for securing a tubular extension received in the respective of said openings and a cover unit pivotally supported on said second housing and positionable between a first position exposing said vacuum collar to enable securing a tubular extension thereat and a second position generally underlying said vacuum collar for precluding receipt of a tubular extension thereat.