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Portable snow blower

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Title: Portable snow blower.
Abstract: An apparatus for removal of at least one of snow and ice from a surface includes a housing having a predetermined shape, at least one intake port and a discharge port and a handle engageable with the housing for carrying and operating the apparatus. A heating member is mounted adjacent the discharge port and a powered blower is disposed within the housing for drawing air through the at least one intake port and exhausting the air through at least a portion of the heating means and through the discharge port, whereby the exhausted air is heated by the heating means. A nozzle is engageable with the housing adjacent the discharge port for applying the exhausted heated air under pressure onto the at least one of snow and ice and a control switch is provided for selectively activating and deactivating the powered blower. ...


USPTO Applicaton #: #20090307936 - Class: 37230 (USPTO) - 12/17/09 - Class 372 
Excavating > Snow Or Ice Removing Or Grooming By Portable Device >With Melter >Manually Powered

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The Patent Description & Claims data below is from USPTO Patent Application 20090307936, Portable snow blower.

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CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a Continuation-in-Part related to and claims priory from patent application Ser. No. 11/294,258 filed Dec. 5, 2005 and is herein incorporated by reference.

FIELD OF THE INVENTION

The present invention relates, in general, to a portable hand carried snow and ice removal apparatus and, more particularly, this invention relates to a portable snow blower capable of providing heated air for melting snow and ice.

BACKGROUND OF THE INVENTION

As is generally well known, snow removal is accomplished either by using a shovel or a power operated ground engaging snow blower. Use of a shovel generates undesired stresses onto a lower back portion of the user and causes fatigue when large amounts of snow must be removed.

Use of a traditional ground engaging powered snow blower equipment alleviates the problem of lower back stresses and user fatigue. However, such equipment is difficult to maneuver and may be cumbersome for users with limited physical strength. Furthermore, traditional snow blowers are disadvantaged in cleaning elevated surfaces such as steps and porches.

Additionally, the use of a shovel or traditional snow blower equipment fails to completely remove snow and ice build up from the ground surface.

Attempts have been made to provide portable snow removal devices. U.S. Pat. No. 4,070,771 to Yakiwchuk discloses a portable snow blower having a shaped housing fitted at its rear with an external handle and enclosing a powered air blower. The discharge opening of the blower is located at a forward tapered end section of the housing, with the opening extending across the top of the end section, and with the bottom portion of the end section of the housing being enclosed.

U.S. Pat. No. 4,378,644 to Tuggle et al teaches a hand carriable powered snow removal apparatus having an internal combustion engine power unit removably connected to one end of a tubular boom which supports an elongated drive shaft connected to the engine power takeoff shaft at and to a right angle drive gear unit mounted at the opposite end of the boom. The gear unit includes a housing mounted on the end of the boom and provides a centered drive arrangement for a pair of opposed paddle type impellers mounted on respective ends of an output shaft projecting from opposite sides of the gear housing. A shroud mounted on the gear housing includes an upwardly projecting rear wall and spaced apart lateral side walls partially enclosing the impellers and providing directional control for the snow being discharged from the impellers. A set of movable guide vanes is mounted on the forward end of the shroud and is adjustable to provide for varying the directional attitude of snow being discharged from the shroud.

U.S. Pat. No. 5,522,162 to Allison discloses a portable rotary snow blower shovel which uses the drive mechanism from a rotary string trimmer. In place of the string and string guard, the snow blower utilizes an impeller and a substantially cylindrical enclosure. The enclosure includes a cutout opening in a lower portion of the periphery to allow snow to enter. Adjacent the opening is a flat plate which is secured to the inside of the enclosure at an angle in order to direct snow upward toward the impeller. The impeller, which is oriented substantially parallel to the surface being cleared, is circular in shape and has radially projecting blades attached to the upper and lower surfaces thereof. Once the snow is directed upward by the angled flat plate, the blades of the impeller, which are rotating at a high speed, force the snow out an exit conduit adjacent the top of the cylindrical enclosure by centrifugal force. The exit conduit directs the snow upward and away from the path being cleared.

While the prior art portable snow removal devices are simple to operate, they fail to address complete removal of the snow and ice build-up from the surface.

Therefore, there is a need for an improved portable apparatus for removing snow and ice build-up and which significantly removes such snow and ice build-up.

SUMMARY

OF THE INVENTION

The invention provides an apparatus for removal of at least one of snow and ice from a surface. Such apparatus includes a housing having a predetermined shape, at least one intake port and a discharge port. A handle is engageable with the housing for carrying and operating the apparatus. A heating member is operably mounted adjacent the discharge port. A powered blower is disposed within the housing for drawing air through the at least one intake port and exhausting the air through at least a portion of the heating means and through the discharge port, whereby the exhausted air is heated by the heating means. A nozzle having each of a predetermined size and a predetermined shape is operably engageable with the housing adjacent the discharge port for applying the exhausted heated air under pressure onto the at least one of snow and ice for substantial removal of the at least one of snow and ice from the surface. A control switch is provided for selectively activating and deactivating the powered blower means.

OBJECTS OF THE INVENTION

It is, therefore, one of the primary objects of the present invention to provide a portable apparatus for removal of snow and ice build-up.

Another object of the present invention is to provide a portable apparatus for removal of snow and ice build-up which significantly removes such snow and ice build-up from the surface.

Yet another object of the present invention is to provide a portable apparatus for removal of snow and ice build-up which is simple to use.

A further object of the present invention is to provide a portable apparatus for removal of snow and ice build-up which generates heated air.

An additional further object of the present invention is to provide a portable apparatus for removal of snow and ice build-up which is simple and economical to manufacture.

An additional object of the present invention is to provide a portable apparatus for the removal of snow ice with a detachable and reattachable heating means.

An additional object of the present invention is to provide a portable handheld apparatus without wheels or other supporting means for the removal of snow ice.

In addition to the several objects and advantages of the present invention which have been described with some degree of specificity above, various other objects and advantages of the invention will become more readily apparent to those persons who are skilled in the relevant art, particularly, when such description is taken in conjunction with the attached drawing Figures and with the appended claims.



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stats Patent Info
Application #
US 20090307936 A1
Publish Date
12/17/2009
Document #
12548611
File Date
08/27/2009
USPTO Class
37230
Other USPTO Classes
International Class
01H5/10
Drawings
3




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