Harvesters – Motorized harvester – Having motor on ground-supported carrier
Reexamination Certificate
1999-04-09
2001-01-30
Pezzuto, Robert E. (Department: 3671)
Harvesters
Motorized harvester
Having motor on ground-supported carrier
C056S255000, C056S295000
Reexamination Certificate
active
06178729
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a lawn mower system with a deck formed with a trap door and more particularly pertains to cutting grass, vegetation, brush, bushes, foliage and the like with a lawn mower adapted to be configured for varying heights of material being cut at the discretion of the user and also chips larger pieces of brush and the like.
2. Description of the Prior Art
The use of lawn mowers of known designs and configurations is known in the prior art. More specifically, lawn mowers of known designs and configurations heretofore devised and utilized for the purpose of cutting grass and foliage of varying heights through known methods and apparatuses are known to consist basically of familiar, expected, and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which has been developed for the fulfillment of countless objectives and requirements.
By way of example, U.S. Pat. No. 2,578,880 to Doyle discloses a Rotating Cutting Disk type Mower. U.S. Pat. No. 4,887,418 to Pelletier discloses an Apparatus for Mowing, Chipping and Blowing. U.S. Pat. No. 4,633,658 to Nogawa discloses a Lawn Mower. U.S. Pat. No. 4,466,235 to Cole discloses a Rotary Mower. Lastly, U.S. Pat. No. 3,851,452 to Brocas discloses Guarded Rotary Mowers.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not describe lawn mower system with a deck formed with a trap door as disclosed herein.
In this respect, the lawn mower system with a deck formed with a trap door according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of cutting grass and foliage with a lawn mower adapted to be configured for varying heights of grass and foliage at the discretion of the user.
Therefore, it can be appreciated that there exists a continuing need for a new and improved lawn mower system with a deck formed with a trap door which can be used for cutting grass and foliage with a lawn mower adapted to be configured for varying heights of grass and foliage at the discretion of the user and also chips larger pieces of brush and the like. In this regard, the present invention substantially fulfills this need.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of lawn mowers of known designs and configurations now present in the prior art, the present invention provides an improved lawn mower system with a deck formed with a trap door. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved lawn mower system with a deck formed with a trap door and method which has all the advantages of the prior art and none of the disadvantages.
To attain this, the present invention essentially comprises a new and improved lawn mower system with a deck having a trap door in the front for cutting grass and foliage and operable as a function of the height of the grass and foliage to be cut. The system comprises, in combination, a deck having a generally cylindrical side wall with a vertical axis and a top wall coupled to the upper edges of the side wall and with an opened bottom. The side wall also forms an open front for nearly 180 degrees of its extent. Two pair of wheels are provided and include a set of front wheels generally centrally located on opposite sides of the side wall and extending outwardly therefrom and a pair of rear wheels extending outwardly from adjacent to the rear edge of the side wall. Also provided is a handle having a pivotable lower end coupled with respect to the housing adjacent to the rear edge and having an upper handle area for use by the user. A motor is mounted in a central region of the deck with a rotatable drive shaft extending downwardly therefrom. A rotatable blade is mounted to the lower end of the drive shaft with a supplemental cutter wheel in a circular configuration located between the upper surface of the deck and the lower end of the drive shaft, the wheel having a pair of diametrically opposed apertures with cutting edges formed therein. An opening is located in the top wall adapted to receive material therethrough for being cut and chopped by the cutting edges of the wheels. A trap door in the system has a width essentially equal to the free front upper edge of the deck with a hinge coupling the deck and trap door, the trap door having an arcuate cross-sectional orientation and adapted to be lowered to a first orientation whereby its exterior edge is essentially at the same height as the lower edge of the deck and raised to a second orientation whereby the entire trap door is above the upper surface of the deck, the side edges of the trap door being formed in an arcuate configuration with the adjacent side wall of the deck also being in an arcuate configuration whereby when the trap is in the first orientation a generally semi-circular exhaust is formed between the deck and trap door whereby cut grass and foliage may be dispersed therethrough to exterior of the deck. Lastly provided in the system is a trigger mounted on the handle coupled to the trap door for pivoting the trap door between the raised position and the lower position when in operation and use. There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of descriptions and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
It is therefore an object of the present invention to provide a new and improved lawn mower system with a deck formed with a trap door which has all of the advantages of the prior art lawn mowers of known designs and configurations and none of the disadvantages.
It is another object of the present invention to provide a new and improved lawn mower system with a deck formed with a trap door which may be easily and efficiently manufactured and marketed.
It is further object of the present invention to provide a new and improved lawn mower system with a deck formed with a trap door which is of durable and reliable constructions.
An even further object of the present invention is to provide a new and improved lawn mower system with a deck formed with a trap door which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby making such lawn mower system with a deck formed with a trap door economically available to the buying public.
Even still another object of the present invention is to provide a lawn mower system with a deck formed with a trap door for cutting grass and foliage wi
Kováacs ÁArpáad Fáabiáan
Pezzuto Robert E.
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