Patent AU-2015101756-A4 (AU)
Title: Floor Grinder Modification Kit
Inventor: NORTON MATHEW RAYMUND
IPC: B24B7/18
Filed: 2015-12-06
Granted: 2016-02-18
Abstract: 5 Abstract - Background Art Small 10 amp floor grinders are commonly and widely used by tilers and coating removal professionals, to perform tasks that involve either stock removal, surface abrading or removal of paint or scale from timber, concrete and 10 metal surfaces. Although reasonably proficient to a degree in performing certain limited work tasks the grinding disc has a relatively slow rotational grinding speed and on undulating surface, the rigid large 250mm plates have a tendency to gouge the floor. Thick paint coatings, carpet glues and hard epoxy coatings in particular however are very difficult to remove with these types of slow moving 15 low powered grinders. Due to the lack of motor power and suitable grinder plate design people are currently limited to what is able to be achieved with these small low powered machines and must therefore use a much more powerful grinder with 15 amp or 20 3 phase power requirements as a more proficient alternative. Object of the Invention The present invention is directed to a modification kit for the large selling, 25 widely used and widely owned Cub floor grinder brand and other various low cost Chinese and locally made 10 amp, 10 inch - 250mm plate floor grinder brands sold in the Australian Market that currently use a 10 inch - 250mm grinder plate, this innovation and new invention is new and useful as it converts these small cheap grinders into a larger more useful planetary grinder design, 30 with significantly improved coating removal, abrasion, floor sanding and floor levelling work capabilities, the innovation consists of an enlarged floating shroud attachment of approx. 410mm size of similar or identical attachment means used by current grinder brands, and a 400mm grinding disc of unique design that uses a series of steel spring saddles and floor grinding shoes that 5 have a redi lock attachment design or other well-known shoe design attachment designs, that facilitates a flexible soft spring grinder ride, that better rides the contours of an undulating concrete floor, that reduces fiction, for greater disc speed rotation and work velocity of the grinding plate, for improved work performance, while providing for very flat smooth surface grinded finish, that 10 significantly improves the performance of a grinder with a limited 2.2 kw electrical motor, that uses the commonly sourced 10 amp house hold power supply, that provides a small limited power grinder with a similar work performance to a much larger and more expensive heavy floor grinder machines, that requires a large heavy expensive power generator, and large powerful truck 15 or work vehicle to transport and tow grinder and generator to a work site, this invention thereby resides in a conversation kit for a small angle grinder, that enables small, cheap, light, low powered, 10 amp floor grinders to operate in a much more proficient and cost effective manner, that provides it with similar or improved work performance to a much larger, heavier, powerful floor grinder 20 machines. The Floor Grinder Modification Kit invention may be better understood with reference to the illustrations of the embodiments of the invention fig 1 which: in the case of the first embodiment of the invention - Has an enlarged 410mm 25 floating shroud design - of identical or appropriate design shape and configuration to attach to cub grinder or grinder brand being retro- fitted, with reference to the illustrations of embodiments of the 2 part of the invention 400mm grinding disc of unique design that uses a series of steel spring saddles [previous patented by me] and floor grinding shoes that have a redi lock 30 attachment design or other well-known shoe design attachment designs, that facilitates a flexible soft spring grinder ride, that better rides the contours of an undulating concrete floor, that reduces fiction, for greater disc speed rotation and work velocity of the grinding plate, for improved work performance, while providing for very flat smooth surface grinded finish, that significantly improves 5 the performance of a grinder with a limited 2.2 kw electrical motor Brief description of drawings Fig 1: shows a pictorial representation of the - enlarged 410mm floating shroud design Fig 2: shows a pictorial representation of the - 400mm grinding disc of unique spring saddle design. The invention will be described in connection with one or more preferred embodiments, it will be understood that the description is not intended to limit the invention to the described embodiments. On the contrary, the description is intended to cover all alternatives, modifications and equivalents as may be 20 included with the spirit and scope of the invention as defined by the attached claims. This new invention may also resides in a range of robust, flexible, diamond electroplated, fine grit, flap disc, grinder abrasive shoes that attach to the spring 25 loaded plate or shoes designs that are best suited and operated with a light weight grinder tool to perform a greater range of work tasks more productively and proficiently. In its basic concept the invention resides in a The Floor Grinder Modification 30 Kit invention resides in a modification kit for the large selling, widely used and widely owned Cub floor grinder brand and other various low cost Chinese 10 amp, 10 inch - 250mm plate floor grinder brands sold in the Australian Market that currently use a 10 inch - 250mm grinder plate, this innovation and new invention is new and useful as it converts these small cheap grinders into a 5 larger more useful planetary grinder design, with significantly improved coating removal, abrasion, floor sanding and floor levelling work capabilities, the innovation consists of an enlarged floating shroud attachment of approx. 410mm size of similar or identical attachment means used by current grinder brands, and a 400mm grinding disc of unique design that uses a series of steel spring saddles 10 [previous patented by AU design number] and floor grinding shoes that have a redi lock attachment design or other well-known shoe design attachment designs, that facilitates a flexible soft spring grinder, that better rides the contours of an undulating concrete floor, that reduces fiction, for greater disc speed rotation and work velocity of the grinding plate, for improved work 15 performance, while providing for very flat smooth surface grinded finish, that significantly improves the performance of a grinder with a limited 2.2 kw electrical motor, that uses a 10 amp house hold power supply, that provides a small limited power grinder with a similar work performance to a much larger and more expensive heavy floor grinder machine, that requires a large heavy 20 expensive power generator, and requires are large powerful truck or vehicle to transport and tow grinder and generator to a work site, this invention thereby resides in a conversation kit for a small angle grinder, that incorporates all useful embodiment and attachment features of floor grinders and grinding shes 7 ;t . .. t c> 8 8 8 4Jna ~-mI I ->N 88 e . 88. 8 4 8 8 ' N >/>10>:8