Shredding machine
OwnerFred Oswaldinventor
Life of this patent
Estimating the term…
Abstract
Two pairs of interdigitated rotatable members are arranged at right angles to one another and are connected by a chute leading downwardly away from one of the pairs and transversely to the other of the pairs so that paper can be first cut up into strips and then subsequently recut to form a confetti. The rotatable members are formed of spools coaxially mounted on a drive shaft, each of the spools being formed of circular or cylindrical members with lesser diameter portions therebetween for purposes of spacing. A comb is provided in association with at least one of the rotatable members and is provided with extra tongues accommodated in grooves formed on the rotatable members in order to strip paper therefrom in order to prevent the paper from becoming entangled in the rotatable members and jamming the same.
Claims15
A paper shredder comprising interdigitated rotatable members each including alternating first and second portions of different diameter, said members being adapted to shred paper therebetween, and comb means operatively extending into at least one of said members to strip paper therefrom, the said comb means and the said one of said members cooperatively including tongue and groove means to assist in removing paper from the members whereby to prevent jamming of said shredder, the first and second portions being cylindrical sections of different diameters, each of said sections being provided with annular grooves constituting part of said tongue and groove means.
A paper shredder comprising two pairs of interdigitated cutting members, one of said pairs being angularly related to the other of said pairs, and chute means to deliver paper from one pair to the other while retaining a generally constant attitude of the paper so that the paper can be cut in two directions.
Dependencies are inferred from the claim text.