Abstract: A rotary floor sanding machine has a vertically oriented bell housing with a backside floor support and a dust suction port for removing dust from within. The bell housing encloses the sides and backside of a disk casing and rotary sanding pad. The floor support is configured to place the floor contact area of the sanding pad forward of center. There is a lifting vane extending from proximate the floor contact area of the sanding pad in the direction of rotation towards the suction port in the bell housing to elevate dust particles to the higher velocity airflow near the suction port. There may be a shield for reducing the floor level opening between the back edge of the disk casing and the bell housing.

Abstract: In a powered floor finishing machine or surface abrading machine, a housing encloses an abrading component. Dust is collected at the edge of the abrading component by an airflow drawn through the gap between the abrading component and the edge of the housing, through the housing to a suction port and on to a dust collection system. Supplemental air at relatively higher pressure is injected into the housing at a favorable position and angle as to the interior geometry and normal airflow pattern so as to inhibit dust collection within the housing and increase average airflow velocity from the gap to the suction port. Less dust is precipitated out of the airflow before it gets to the suction port, thus improving the efficiency and effectiveness of dust collection, and extending the intervals between which the interior of the housing need be cleaned.

Abstract: A rotary floor sanding machine has a vertically oriented bell housing with a backside floor support and a dust suction port for removing dust from within. The bell housing encloses the sides and backside of a disk casing and rotary sanding pad. The floor support is configured to place the floor contact area of the sanding pad forward of center. There is a lifting vane extending from proximate the floor contact area of the sanding pad in the direction of rotation towards the suction port in the bell housing to elevate dust particles to the higher velocity airflow near the suction port. There may be a shield for reducing the floor level opening between the back edge of the disk casing and the bell housing.

Abstract: A powered floor sanding system with a motorized drum-type floor sander with a sanding drum configured as a drum core with a compliant sole covered with a first component layer of a hook and loop fastener system, to which is fastened a removable drum surface of back to back layers of hook and loop fastener materials. The removable drum surface is replaceable if damaged. A sanding blank alignment guide at or below the height of the removable drum surface provides for alignment and hand wrapping of a sanding blank laminated back to back with one component of a hook and loop fastener system around the removable drum surface. The alignment guide may also be used to fasten the removable drum surface to the drum core.

Abstract: A powered floor sanding system with a motorized drum-type floor sander with a sanding drum configured as a drum core with a compliant sole covered with a first component layer of a hook and loop fastener system, to which is fastened a removable drum surface of back to back layers of hook and loop fastener materials. The removable drum surface is replaceable if damaged. A sanding blank alignment guide at or below the height of the removable drum surface provides for alignment and hand wrapping of a sanding blank laminated back to back with one component of a hook and loop fastener system around the removable drum surface. The alignment guide may also be used to fasten the removable drum surface to the drum core.

Abstract: A powered floor sanding system with a rotating sanding drum having a drum core, to which is adhered a compliant sole and thereto a hook component material, using suitable adhesives; in combination with a sanding sheet having a loop fabric laminated to its backside with a high temperature adhesive so that the sanding sheet can be manually wrapped around the drum without special tools or other considerations, resulting in full surface area engagement of the hook and loop fastening materials with a butt joint of the sheet leading and trailing edges that does not overlap, and the sheet retains its grip on the drum for floor sanding operations under the weight of the floor sander at speeds up to 2800 rpm. There may be an alignment bar on the drum, not higher than flush. There may be a recess behind the bar for the leading edge of the sanding sheet.

Abstract: A powered floor sanding system with a rotating sanding drum having a drum core, to which is adhered a compliant sole and thereto a hook component material, using suitable adhesives; in combination with a sanding sheet having a loop fabric laminated to its backside with a high temperature adhesive so that the sanding sheet can be manually wrapped around the drum without special tools or other considerations, resulting in full surface area engagement of the hook and loop fastening materials with a butt joint of the sheet leading and trailing edges that does not overlap, and the sheet retains its grip on the drum for floor sanding operations under the weight of the floor sander at speeds up to 2800 rpm. There may be an alignment bar on the drum, not higher than flush. There may be a recess behind the bar for the leading edge of the sanding sheet.

Abstract: An improvement to a rotary floor edger/sander machine for eliminating the tracks caused by the castors on the back edge of the edger when working on softer floors. Castors are replaced or supplemented with a float member assembly that provides a relatively larger area of smooth surface support. The rotating disc reduces friction between the float member and the floor, facilitating the manual guidance of the machine over the floor. The float member assembly can also be configured so as to reduce the overall opening between the machine's bellhousing and the floor, increasing the effectiveness of the machine's vacuum action for picking up loosened particles of floor material.