Harvesters – Motorized harvester – Having motor on ground-supported carrier
Reexamination Certificate
1999-08-18
2001-03-27
Pezzuto, Robert E. (Department: 3671)
Harvesters
Motorized harvester
Having motor on ground-supported carrier
C056S295000
Reexamination Certificate
active
06205755
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an assembly which permits a blade to be attached to and removed from a rotary mower without the use of tools.
2. Prior Art
Currently, to sharpen or replace a mower blade for a rotary mower requires that the blade be removed from the mower using a wrench or socket to loosen a bolt which secures the blade to the mower. This can be difficult when there has been a build-up of debris around the blade bolt or when moisture has caused rust which locks the bolt in place. Also, it can be hazardous if the wrench or socket slips off the bolt's head during blade attachment or removal thereby causing one's hand to strike the mower blade housing or the sharpened edge of the blade.
SUMMARY OF THE INVENTION
The present invention provides a mower blade assembly which permits the blade of a rotary mower to be attached to and removed from the mower without the use of tools. This is accomplished by securing the blade to a blade adapter and securing a fixed adapter to the mower. The respective adapters are formed so that they may be selectively interlocked with one another by a connection not requiring tools. As a result, the blade can be quickly attached to or removed from the mower by hand without the difficulties and potential for injury existent in conventional blade-changing arrangements.
The assembly just described permits the user to remove a blade easily so that it can be sharpened or replaced and then resecured to the mower. Such an assembly also allows the user to readily substitute between different types of blades, viz., between blades which are designed for particular applications, such as mulching, bagging and side discharge.
REFERENCES:
patent: 2875569 (1959-03-01), Sauer
patent: 3670413 (1972-06-01), Weber
patent: 3783591 (1974-01-01), Sotak et al.
patent: 3875728 (1975-04-01), Bacon
patent: 3877146 (1975-04-01), Pittinger
patent: 4035994 (1977-07-01), Hoff
patent: 4041679 (1977-08-01), Seifert et al.
patent: 4055935 (1977-11-01), Malion et al.
patent: 4084397 (1978-04-01), McGrath
patent: 4088210 (1978-05-01), Hoff
patent: 4090345 (1978-05-01), Harkness
patent: 4229933 (1980-10-01), Bernard
patent: 4586257 (1986-05-01), Rittenhouse
patent: 4712364 (1987-12-01), Oxley
patent: 4771593 (1988-09-01), Lee
patent: 4936884 (1990-06-01), Campbell
patent: 5456095 (1995-10-01), Tawil et al.
patent: 5581985 (1996-12-01), Secosky
patent: 5724796 (1998-03-01), Plamper
patent: 5862598 (1999-01-01), Lee
patent: 0 438 611 (1991-07-01), None
patent: 0 676 127 (1995-10-01), None
patent: 1 562 948 (1980-03-01), None
Bontrager Robert C.
Pitman Richard J.
Scott Paul L.
Kováacs ÁArpáad Fáabiáan
Murray Inc.
Pezzuto Robert E.
Pillsbury & Winthrop LLP
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