Abstract: A vacuum filter bag includes an inlet flange and gasket and a plug. The inlet flange includes axial ribs and recesses which improve the seal between the inlet gasket and a vacuum inlet port and prevent accidental removal of the filter bag from the vacuum inlet port. The plug more securely closes the filter inlet opening after use of the filter bag. The filter bag reduces user exposure to dust and debris captured with a vacuum and is particularly suited for minimizing exposure to hazardous materials.

Abstract: A dust collection shroud for an oscillating tool is provided. The dust collection shroud includes a shroud body with a base and semi-circular dust collection plenums which extends around the output shaft of an oscillating tool. Left and right airflow ducts extend upwardly from the dust collection plenums around the sides of the oscillating tool head. The airflow ducts join together above the oscillating tool. A vacuum port connects the dust collection shroud to a vacuum to collect dust generated while using the dust collection shroud. The dust collection openings and airflow ducts are configured to provide greater airflow from adjacent the front of the oscillating tool in combination with balanced airflow around the sides and back of the oscillating tool; allowing the shroud to be used with various cutting and sanding bits.

Abstract: A circular saw dust collection shroud is provided. The dust collection shroud includes a shroud body and a saw blade hood which is disposed around a circular saw blade. The saw blade hood may engage the upper blade guard of the circular saw. The dust collection shroud is reconfigurable to mount to either a left or a right handed circular saw and is adjustable relative to the saw to position the saw blade hood in a desired location around the saw blade.

Abstract: An angle grinder dust collection shroud includes mounting brackets which are attached to a shroud body via slots which allow the mounting brackets to move to different circumferential locations around the output shaft of the angle grinder as well and inwardly towards and outwardly away from the output shaft of the angle grinder. The mounting brackets are adjustable in their position around the angle grinder output shaft to allow them to engage the angle grinder while avoiding any mounting features for the angle grinder's stock blade guard.

Abstract: A vacuum filter bag includes an inlet flange and gasket and a plug. The inlet flange includes axial ribs and recesses which improve the seal between the inlet gasket and a vacuum inlet port and prevent accidental removal of the filter bag from the vacuum inlet port. The plug more securely closes the filter inlet opening after use of the filter bag. The filter bag reduces user exposure to dust and debris captured with a vacuum and is particularly suited for minimizing exposure to hazardous materials.

Abstract: A vacuum filter bag includes an inlet flange and gasket, a clamp positioned adjacent the inlet flange, and a plug. The clamp is operable to engage the inlet port of a canister vacuum when the filter bag is mounted in the vacuum and keeps the filter bag securely attached to the vacuum inlet. The clamp is also operable to engage the plug and keep the plug in place to close the filter bag inlet after use of the bag. The filter bag reduces user exposure to dust and debris captured with a canister vacuum.

Abstract: An angle grinder dust collection shroud includes mounting brackets which are attached to a shroud body via slots which allow the mounting brackets to move to different circumferential locations around the output shaft of the angle grinder as well and inwardly towards and outwardly away from the output shaft of the angle grinder. The mounting brackets are adjustable in their position around the angle grinder output shaft to allow them to engage the angle grinder while avoiding any mounting features for the angle grinder's stock blade guard.

Abstract: A shroud for circular saws is provided. The shroud attaches to the shoe of a circular saw and includes a blade opening to allow the saw blade to pass through the shroud. Dust is collected from the front and back of the blade and directed to a vacuum through an internal plenum. The shroud may include vertical hoods which extend up from the front and back of the blade opening and cooperate with the circular saw blade guard to capture dust and debris. The bottom of the shroud may include wheels to assist in using the shroud and saw.

Abstract: A vacuum cleaner and filter cleaning system includes a filter cleaning mechanism which allows the filter to be cleaned without removal from the vacuum. Operation of the filter cleaning mechanism both flows air backwards through the filter and strikes the filter to more effectively clean the vacuum filter. The vacuum allows for filter cleaning and debris disposal without significant interruption of the use of the vacuum cleaner.

Abstract: A shroud for circular saws is provided. The shroud attaches to the shoe of a circular saw and includes a blade opening to allow the saw blade to pass through the shroud. Dust is collected from the front and back of the blade and directed to a vacuum through an internal plenum. The shroud may include vertical hoods which extend up from the front and back of the blade opening and cooperate with the circular saw blade guard to capture dust and debris. The bottom of the shroud may include wheels to assist in using the shroud and saw.

Abstract: A vacuum filter which is resistant to hot debris and which prevents damage to the vacuum when damaged is disclosed. The vacuum filter may include a filter element which is formed of multiple layers of different material. The filter element may include an upstream layer of filter material which is exposed to incoming debris and which filters debris from air moving through a vacuum, a firebreak layer disposed adjacent the upstream layer of filter material and disposed downstream of the upstream layer of filter material, and a downstream layer of filter material which is disposed downstream of the firebreak layer. The firebreak layer and downstream layer of filter material may prevent damage to the vacuum and maintain the filtration ability of the filter if the upstream layer of filter material is damaged.

Abstract: A dust shroud for reciprocating saws has a shroud body with bristles, a vacuum port and an attachment collar attached to the shroud body. The shroud has a slot formed through the collar and shroud body and is expandable and collapsible to fit different sizes of reciprocating saws.

Abstract: A cutoff saw and filtration system provides convenient multi-stage filtration for a cutoff saw. The filters are effective in capturing the dust and debris created by the saw without becoming clogged. The filters may be easily cleaned and serviced.

Abstract: A dust shroud for an angle grinder includes an access hatch which slides along the shroud body to selectively expose an edge of a grinding disc to allow grinding into a corner. The hatch remains attached to the shroud body in both the open and closed position, making the hatch easier to use and less likely to become lost, resulting in increased worker compliance in properly using the hatch.

Abstract: A universal dust shroud is mountable to many high speed gas powered concrete cutting saws while remaining strong and stable. The dust shroud is adjustable to properly fit the saw and effectively collect dust and debris.

Abstract: A dust shroud for rotary tools includes a front half and a back half which are attachable together along an axis thereof to form a dust shroud. The dust shroud is mountable to a rotary power tool after mounting a mandrel in the power tool, and includes one or more openings to allow a person to lock the shaft of the tool while the dust shroud is mounted thereto to allow a person to change a worn out abrasive pad. The dust shroud is particularly suited for use with die grinders and similar rotary tools.

Abstract: A dust shroud for gas powered circular saws allows for mounting to a circular saw and for use therewith out hindering the use of the saw. The shroud does not interfere with the ability to operate the saw or set the saw on the ground, and effectively collects dust and debris without reducing the depth of cut.