# US 6,295,681 B1 · Rotary brush cleaning device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,295,681 B1 - Document ID: US6295681B1 - Status: Granted - Kind: B1 - Application number: 09/469,734 - Filed: 1999-12-21 - Granted: 2001-10-02 - Earliest claimed: 1999-12-21 - Inventors: Olga H. Dolah - Web page: https://patentgrep.com/patent/US6295681B1 ## CPC - A46B 13/001: {Cylindrical or annular brush bodies} - A47L 17/00: Apparatus or implements used in manual washing or cleaning of crockery, table-ware, cooking-ware or the like (foam-making devices A47K5/14) - A46B 2200/3073: Brush for cleaning specific unusual places not otherwise covered, e.g. gutters, golf clubs, tops of tin cans, corners - A46B: BRUSHES (handles not integral with brushware B25G) - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract A rotary brush cleaning device with interchangeable brush attachments including a power unit adapted for being held in a hand of a user. The power unit comprises a housing adapted for being gripped in the hand of a user, and the housing has an interior. A motor is mounted in the interior of the housing. An attachment mounting member is located in the interior of the housing, and a power source is located in the housing. At least one interchangeable brush attachment is provided for removably coupling to the power unit. The brush attachment includes a brush portion and an attachment base portion for removably mounting to the attachment mounting member of the power unit. The attachment mounting member has a mounting groove formed by an inner wall surface and an outer wall surface spaced from the inner wall surface. The mounting groove is substantially annular and peg members are located at diametrically opposite locations on the annular mounting groove. The attachment base portion of the brush attachment has a sleeve portion for insertion into the mounting groove of the attachment mounting member of the power unit. The attachment base portion has an attachment slot for receiving and engaging the peg member of the attachment mounting member. The brush attachments may include a toilet cleaning brush attachment, a bottle cleaning brush attachment, a sponge brush attachment, a baby bottle nipple cleaning brush attachment, a wire brush attachment, and a scouring brush attachment. ## Claims ### Claim 1 A rotary brush cleaning system with interchangeable brush attachments, comprising: a power unit adapted for being held in a hand of a user, the power unit comprising: a housing adapted for being gripped in the hand of a user, the housing having an interior; a motor mounted in the interior of the housing; an attachment mounting member located in the interior of the housing; a power source located in the housing; and at least one interchangeable brush attachment for removably coupling to the power unit, the at least one brush attachment including a brush portion and an attachment base portion mounted to the attachment base portion for removably mounting to the attachment mounting member of the power unit; wherein the attachment mounting member has a mounting groove formed by an inner wall surface and an outer wall surface spaced from the inner wall surface. ### Claim 2 (depends on 1) The rotary brush cleaning system of claim 1 wherein the power source is removably mounted in the interior of the housing, the power source having a power source case removably insertable through a second opening in a second end of the housing. ### Claim 3 (depends on 2) The rotary brush cleaning system of claim 2 wherein a second end of the power source case has a recess formed therein, and a bar extending across the recess of the second end of the power source case for permitting finger pinching of the bar to pull the power source case from the housing. ### Claim 4 (depends on 1) The rotary brush cleaning system of claim 1 additionally comprising a pair of peg members each extending from the inner wall surface to the outer wall surface. ### Claim 5 (depends on 4) The rotary brush cleaning system of claim 4 wherein the mounting groove is substantially annular and the peg members are located at diametrically opposite locations on the annular mounting groove. ### Claim 6 (depends on 1) The rotary brush cleaning system of claim 1 wherein the attachment base portion of the brush attachment has a sleeve portion for insertion into the mounting groove of the attachment mounting member of the power unit. ### Claim 7 (depends on 6) The rotary brush cleaning system of claim 6 wherein the attachment base portion has an attachment slot for receiving and engaging the peg member of the attachment mounting member. ### Claim 8 (depends on 7) The rotary brush cleaning system of claim 7 wherein the attachment slot has an entry portion extending in the longitudinal direction of the brush attachment and a locking portion extending substantially perpendicular to the longitudinal direction of the entry portion such that rotation of the attachment base portion about the longitudinal axis moves one of the peg members received in the entry portion of the attachment slot into the locking portion of the attachment slot. ### Claim 9 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment includes an elongate intermediate shaft extending between the attachment base and a central shaft of the brush portion. ### Claim 10 (depends on 9) The rotary brush cleaning system of claim 9 wherein an exterior surface of the intermediate shaft has a plurality of annular grooves for facilitating finger gripping of the intermediate shaft for pulling the attachment base from the attachment mounting member. ### Claim 11 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment comprises a toilet cleaning brush attachment, the toilet cleaning brush attachment comprising a splash shield mounted on the intermediate shaft adjacent to the brush portion to block splashing of liquid from the brush portion toward the attachment base, and a plurality of bristles mounted to the central shaft. ### Claim 12 (depends on 11) The rotary brush cleaning system of claim 11 additionally comprising a toilet brush receptacle having an interior for receiving the brush portion of the toilet cleaning brush attachment, the toilet brush receptacle having an upper rim adapted for resting the splash shield of the toilet cleaning brush attachment. ### Claim 13 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment comprises a bottle cleaning brush attachment, the bottle cleaning brush attachment includes a plurality of bristles mounted to a central shaft of the brush portion. ### Claim 14 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment comprises a sponge brush attachment, the sponge brush attachment including a plurality of radially-extending sponge arms mounted to the central shaft. ### Claim 15 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment comprises a baby bottle nipple cleaning brush attachment, the baby bottle nipple cleaning brush attachment including a plurality of bristles mounted to the central shaft, the plurality of bristles having a diameter that tapers smaller toward a free end of the central shaft. ### Claim 16 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment comprises a wire brush attachment, the wire brush attachment including a bristle mounting flange mounted to the intermediate shaft opposite the attachment base, the bristle mounting flange extending outwardly from the intermediate shaft, and a plurality of wire bristles mounted to the mounting flange, the wire bristles extending generally parallel to the intermediate shaft. ### Claim 17 (depends on 1) The rotary brush cleaning system of claim 1 wherein the brush attachment comprises a scouring brush attachment, the scouring brush attachment including a mounting flange mounted to the intermediate shaft opposite the attachment base, the mounting flange extending outward from the intermediate flange, and a scouring brush filament mounted to the mounting flange. ### Claim 18 A rotary brush cleaning system with interchangeable brush attachments, comprising: a power unit adapted for being held in a hand of a user, the power unit comprising: a housing adapted for being gripped in the hand of a user, the housing having an interior; a motor mounted in the interior of the housing; an attachment mounting member located in the interior of the housing; a power source located in the housing; at least one interchangeable brush attachment for removably coupling to the power unit, the at least one brush attachment including a brush portion and an attachment base portion mounted to the attachment base portion for removably mounting to the attachment mounting member of the power unit; wherein the power source is removably mounted in the interior of the housing, the power source having a power source case removably insertable through a second opening in a second end of the housing; and wherein a second end of the power source case has a recess formed therein, and a bar extending across the recess of the second end of the power source case for permitting finger pinching of the bar to pull the power source case from the housing. ### Claim 19 A rotary brush cleaning system with interchangeable brush attachments, comprising: a power unit adapted for being held in a hand of a user, the power unit comprising: a housing adapted for being gripped in the hand of a user, the housing having an interior; a motor mounted in the interior of the housing; an attachment mounting member located in the interior of the housing; a power source located in the housing; and at least one interchangeable brush attachment for removably coupling to the power unit, the at least one brush attachment including a brush portion and an attachment base portion mounted to the attachment base portion for removably mounting to the attachment mounting member of the power unit; wherein the brush attachment includes an elongate intermediate shaft extending between the attachment base and a central shaft of the brush portion; and wherein an exterior surface of the intermediate shaft has a plurality of annular grooves for facilitating finger gripping of the intermediate shaft for pulling the attachment base from the attachment mounting member. ### Claim 20 A rotary brush cleaning system with interchangeable brush attachments, comprising: a power unit adapted for being held in a hand of a user, the power unit comprising: a housing adapted for being gripped in the hand of a user, the housing having an interior; a motor mounted in the interior of the housing; an attachment mounting member located in the interior of the housing; a power source located in the housing; and at least one interchangeable brush attachment for removably coupling to the power unit, the at least one brush attachment including a brush portion and an attachment base portion mounted to the attachment base portion for removably mounting to the attachment mounting member of the power unit; wherein the brush attachment comprises a toilet cleaning brush attachment, the toilet cleaning brush attachment comprising a splash shield mounted on the intermediate shaft adjacent to the brush portion to block splashing of liquid from the brush portion toward the attachment base, and a plurality of bristles mounted to the central shaft. ### Claim 21 (depends on 20) The rotary brush cleaning system of claim 20 additionally comprising a toilet brush receptacle having an interior for receiving the brush portion of the toilet cleaning brush attachment, the toilet brush receptacle having an upper rim adapted for resting the splash shield of the toilet cleaning brush attachment. ### Claim 22 A rotary brush cleaning system with interchangeable brush attachments, comprising: a power unit adapted for being held in a hand of a user, the power unit comprising: a housing adapted for being gripped in the hand of a user, the housing having an interior; a motor mounted in the interior of the housing; an attachment mounting member located in the interior of the housing; a power source located in the housing; and at least one interchangeable brush attachment for removably coupling to the power unit, the at least one brush attachment including a brush portion and an attachment base portion mounted to the attachment base portion for removably mounting to the attachment mounting member of the power unit; wherein the brush attachment comprises a sponge brush attachment, the sponge brush attachment including a plurality of radially-extending sponge arms mounted to the central shaft.