Abstract: A back-up apparatus for use with a surface treating apparatus can include a back-up plate having a pad attachment face and a back-up pad having a first pad face and a second pad face. The back-up apparatus can also include a porous interface layer. The interface layer can include an outer face. The back-up apparatus can also include a layer of a first adhesive on the outer face and extending into the interface layer, and a layer of a second adhesive provided on the layer of the first adhesive. The second adhesive can be selected to releasably adhesively bond to an abrasive sheet. The first and second adhesives can be selected such that the adhesive bond between the first adhesive and the second adhesive is stronger than the adhesive bond between the second adhesive and the abrasive sheet.

Abstract: A back-up apparatus for use with a surface treating apparatus can include a back-up plate having a pad attachment face and a back-up pad having a first pad face and a second pad face. The back-up apparatus can also include a porous interface layer. The interface layer can include an outer face. The back-up apparatus can also include a layer of a first adhesive on the outer face and extending into the interface layer, and a layer of a second adhesive provided on the layer of the first adhesive. The second adhesive can be selected to releasably adhesively bond to an abrasive sheet. The first and second adhesives can be selected such that the adhesive bond between the first adhesive and the second adhesive is stronger than the adhesive bond between the second adhesive and the abrasive sheet.

Abstract: A back-up apparatus for use with a surface treating apparatus can include a back-up plate having a pad attachment face and a back-up pad having a first pad face and a second pad face. The back-up apparatus can also include a porous interface layer. The interface layer can include an outer face. The back-up apparatus can also include a layer of a first adhesive on the outer face and extending into the interface layer, and a layer of a second adhesive provided on the layer of the first adhesive. The second adhesive can be selected to releasably adhesively bond to an abrasive sheet. The first and second adhesives can be selected such that the adhesive bond between the first adhesive and the second adhesive is stronger than the adhesive bond between the second adhesive and the abrasive sheet.

Abstract: A sanding apparatus for sanding a support surface includes an elongated frame having a handle end and a work end. The handle end is arranged for operator control and the work end is adapted for connection to a working device. The sanding apparatus also includes a stabilizer member adapted to contact and grip the support surface. The stabilizer member is disposed between the handle end and the work end. The stabilizer member prevents the sanding apparatus from pulling away from an operator during use.

Abstract: A rotary orbital sander includes a motor having a rotatable shaft with a radially off-set portion. A suction housing is mounted to the motor around the motor shaft and connectable with a vacuum source. A sanding pad assembly including a backing pad having a plurality of apertures therethrough and an annular frame having a circumferential side wall including first and second circumferential edges is mounted to the radially off-set portion of the shaft. A circular back wall extends from one of the circumferential edges and has an opening therein sealable with the suction housing. The other circumferential edge is attached to the backing pad. The sanding pad assembly resists flapping at high rotational speeds. A sanding disk having a size and shape complimentary to that of the sanding pad, and a plurality of holes aligning with the apertures in the sanding pad is mountable on the sanding pad. A vacuum source draws sanding waste through the aligned apertures and out the suction housing.

Abstract: A rotary orbital sander includes a motor having a rotatable shaft with a radially off-set portion. A suction housing is mounted to the motor around the motor shaft and connectable with a vacuum source. A sanding pad assembly including a backing pad having a plurality of apertures therethrough and an annular frame having a circumferential side wall including first and second circumferential edges is mounted to the radially off-set portion of the shaft. A circular back wall extends from one of the circumferential edges and has an opening therein sealable with the suction housing. The other circumferential edge is attached to the backing pad. The sanding pad assembly resists flapping at high rotational speeds. A sanding disk having a size and shape complimentary to that of the sanding pad, and a plurality of holes aligning with the apertures in the sanding pad is mountable on the sanding pad. A vacuum source draws sanding waste through the aligned apertures and out the suction housing.

Abstract: A rotary orbital sander includes a motor having a rotatable shaft with a radially off-set portion. A suction housing is mounted to the motor around the motor shaft and connectable with a vacuum source. A sanding pad assembly including a backing pad having a plurality of apertures therethrough and an annular frame having a circumferential side wall including first and second circumferential edges is mounted to the radially off-set portion of the shaft. A circular back wall extends from one of the circumferential edges and has an opening therein sealable with the suction housing. The other circumferential edge is attached to the backing pad. The sanding pad assembly resists flapping at high rotational speeds. A sanding disk having a size and shape complimentary to that of the sanding pad, and a plurality of holes aligning with the apertures in the sanding pad is mountable on the sanding pad. A vacuum source draws sanding waste through the aligned apertures and out the suction housing.

Abstract: A rotary orbital sander includes a motor having a rotatable shaft with a radially off-set portion. A suction housing is mounted to the motor around the motor shaft and connectable with a vacuum source. A sanding pad assembly including a backing pad having a plurality of apertures therethrough and an annular frame having a circumferential side wall including first and second circumferential edges is mounted to the radially off-set portion of the shaft. A circular back wall extends from one of the circumferential edges and has an opening therein sealable with the suction housing. The other circumferential edge is attached to the backing pad. The sanding pad assembly resists flapping at high rotational speeds. A sanding disk having a size and shape complimentary to that of the sanding pad, and a plurality of holes aligning with the apertures in the sanding pad is mountable on the sanding pad. A vacuum source draws sanding waste through the aligned apertures and out the suction housing.

Abstract: A rotary orbital sander includes internal suction channels connecting with a suction housing connectable with a vacuum source for removing sanding waste during sanding. A dual weight balancing arrangement includes oppositely extending weights in planes spaced above a sanding pad to completely balance the eccentric rotary pad with the separately located weights.

Abstract: A rotary orbital sander includes internal suction channels connecting with a suction housing connectable with a vacuum source for removing sanding waste during sanding. A dual weight balancing arrangement includes oppositely extending weights in planes spaced above a sanding pad to completely balance the eccentric rotary pad with the separately located weights.

Abstract: A suction plate for a vacuum sanding device is in the form of a ring or rectangular plate spaced above a backup pad to define a chamber, the periphery of the suction plate is spaced slightly above the backup pad for the whole periphery of the plate and the outer edge of the plate is coterminous, or nearly so, with the edge of the backup pad. In one embodiment, the suction plate is formed of a relatively flexible plastic material. A series of spacers on the backup pad edge or the rim of the suction plate may be used. In a further embodiment a flexible cone or skirt is secured to the housing and extends down over the backup pad and the rim of the suction plate. Projections on the inside of the skirt serve to maintain a space between the latter and the suction plate rim.

Abstract: A clutch assembly for a sanding head is disclosed, the assembly giving a sanding head the dual functions of orbital sanding or rotary grinding. The assembly incorporates a clutch plate and actuating means between an eccentric drive head and backup pad secured thereto. The actuator moves the plate axially, depending on the rotational speed of the unit, into engagement with the drive head to effect a rotary grinding action. Release of the clutch plate therefrom due to a drop in speed converts the rotary action to one of an orbital path.

Abstract: A pad assembly for a vacuum rotary sander has a flexible pad body secured to a rigid head that is connectable to a vacuum housing and a pad rotating means. A plurality of apertures in the head communicate with other apertures in the lower surface of the pad by internal channels which are angled toward the direction of rotation of the pad. The apertures in the lower portion of the pad coincide with apertures in an abrasive disc removably secured to the assembly and may be elongated in the direction opposite to that of rotation so as to allow some slippage of the abrasive disc relative to the pad assembly. There is also disclosed a device for quickly positioning and loading an abrasive disc onto the pad assembly.

Abstract: A vacuum housing for a rotary tool, particularly a hand-held tool such as a grinder, consists of a tubular casing concentrically positioned around the tool. The casing features a telescopic nose portion.

Abstract: A vacuum hand sanding device consists of a back-up pad with sanding disc attached thereto detachably secured to a vacuum housing and vacuum source. The back-up pad has a plurality of apertures in the surface thereof and channels therein between the apertures and the housing. In one embodiment, a relief valve is provided on the housing and which can be covered by an operator's hand. In another embodiment, the relief valve is situated on a tubular handle connecting the back-up pad to the vacuum source. Means may be provided for adjustably altering the angle between the pad and the tubular handle.

Abstract: This invention is directed to a vacuum sanding device. More particularly, the invention is directed to a vacuum sanding device that has one or more vacuum openings in the central area of the sanding disc, or, one or more vacuum openings located around the periphery of the sanding disc, or a combination of one or more openings in the central area of the sanding disc and one or more openings located around the periphery of the sanding disc.

Abstract: An abrader, such as a motorized disk sander, is provided with an annular chamber which surrounds the disk and which has a plurality of small openings proximate the work surface. A depending skirt on the chamber confines the abraded material. The mounting of the chamber provides for limited axial and rocking movement of the chamber with respect to the abrader to facilitate catching abraded material from curved work surfaces and in instances where the abrader is applied at an acute angle to the work surface. The motility also facilitates installation and removal of the attachment and of abrasive sheets to and from the disk of the abrader. By preference, the mounting provides for unlimited rotation of the abrading machine body with respect to the chamber. In one embodiment, the chamber is provided with an enlarged "slug catcher" opening for capturing larger pieces abraded from the work surface.

Abstract: This invention relates to a vacuum attachment for an abrading machine wherein the vacuum is applied through a vacuum chamber having vacuum directing means close to the workpiece being abraded. The vacuum chamber is preferably adapted for movement relative to the abrader.