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Class 172/545 - Blades or teeth change position relative to each other or rotating support during rotation


Subclass of Class 172 - Earth working
Definition: Apparatus in which the projecting means change their position
No. of patents: 17
Last issue date: 03/25/2008


NumberTitleIssue Date
7347645Concrete stamping apparatus
A concrete stamping apparatus includes a roller with a stamp forming its surface, and a receiving portion for rotatably holding the roller. There is also a system for delivering fluid to release the roller from the surface on which it operates by spraying fluid onto...
03/25/2008
7278597Rotating cylindrical flailing vegetation cutter
A rotating cylindrical flailing vegetation cutter, which includes a power rotated shaft having a cross-sectional profile. Disks are provided having a central aperture adapted to slide over the shaft and non-rotatably engage the cross-sectional profile. Each of the d...
10/09/2007
7140804Concrete stamping apparatus
A concrete stamping apparatus includes a roller with a stamp forming its surface, and a receiving portion for rotatably holding the roller. There is also a system for delivering fluid to the roller along its surface, such that it releases easily from the concrete. T...
11/28/2006
6786287Tool for soil cultivating machine, and machine using such tools
Device for a soil cultivating machine, comprising a rotor. A plurality of tools are mounted on the rotor. At least one tool of the plurality comprises a fixing end, a soil engaging portion, and a connecting portion which connects the fixing end to the soil engaging ...
09/07/2004
6484811Mulching unit for use in mulching apparatus
A mulching unit for a mulching apparatus includes at least one cutting assembly or hammer having a rotatable support element and two cutting elements spaced apart from one another by a predetermined gap that allows debris to pass between the cutting eleme...
11/26/2002
4805704Rotary tilling device
A rotary tilling device has a cutting device having a plurality of cutters each of which is rotatably mounted on a supporting member. The cutter has a vertical portion and a lateral portion at an end of the vertical portion and has edges on both sides of ...
02/21/1989
4778012Rotary tilling and grass cutting device
A rotary tiling device has a cutting device having a plurality of cutters each of which is mounted on a supporting member at a base end thereof in such a manner that the cutter is rotatable about a first center. The cutter has a vertical portion and a lat...
10/18/1988
4773486Driven tine wheel type aerator having improved tine geometry
A core-type walk-behind aerator includes a chassis movable along a turf surface and having a tine wheel assembly rotatable about an axis transverse to the direction of movement of the aerator. The tine wheel assembly is positively driven by power means an...
09/27/1988
4770252Harrow
A tine mounting arrangement for a harrow provides a transverse elongate support member with a plurality of stub shafts extending outwardly therefrom in the same horizontal plane at an angle of 45°. Each stub shaft carries a pair of spring tines with the ...
09/13/1988
4768596Soil crust loosening apparatus
An apparatus for loosening a crust formed in the soil over planted seeds. A drum having a plurality of fingers rotatably disposed around an outer cylindrical surface thereof is biased toward the ground by spring rods which are adjustably attached to a fra...
09/06/1988
4706761Tilling machine with pivotal bi-directional operative tines
A tine assembly for use with a rotary tiller comprising a selectively rotatable tine shaft and a plurality of pivotally mounted tines. The tines each include stop surfaces associated with an innermost end of the tine whereby the tine pivots to one positio...
11/17/1987
4697644Cultivator nail supporting structure
There is provided a cultivator blade supporting structure. The structure comprises at least one cultivator blade comprising a shank and a blade portion; at least one blade holder having a hollow sleeve for removably receiving the shank of the cultivator b...
10/06/1987
4693023Snow shaping means
A snow shaping means intended to be towed e.g. behind a vehicle and consisting of a cylindrical snow compacting means mounted in a frame and having track shaping elements on its periphery. Now that the so-called diagonal style has been introduced in skiin...
09/15/1987
4611669Tine assembly
A tine assembly for a tiller, comprising a plate (12 or 20) mounted on a rotative shaft (11) and a plurality of tines (13 or 21) connected by a pivotal connection (14 or 22) to the plate so as to swing outwardly of the plate to engage the soil upon rotati...
09/16/1986
4334799Impact roller
An impact roller for applying blows cyclically to a surface over which the roller is rolling. The roller has flail members pivotally connected thereto and also has recesses to accommodate the flail members when inoperative. In operation, when the roller r...
06/15/1982
4026364Soil cultivating machines
A cultivating machine has an elongated cultivating member that is rotatably mounted to turn about a horizontal axis that extends transverse to the direction of normal travel. A plurality of tined soil cultivating means is mounted on a support shaft of the...
05/31/1977
3934390Debris collector
A device for picking up debris from lawns and like grounds, and comprised of a rolling drum motivated and controlled through a handle, and having retractile spikes for collectively piercing leaves and small bits of paper and like refuse, said spikes being...
01/27/1976
 
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