# US 11,297,988 B2 · Bagged vacuum cleaner > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,297,988 B2 - Document ID: US11297988B2 - Status: Granted - Kind: B2 - Application number: 16/606,757 - Filed: 2018-04-20 - Published: 2020-02-27 - Granted: 2022-04-12 - Earliest claimed: 2017-04-21 - Applicants: Grey Technology Limited - Inventors: Nicholas Gerald Grey; Morteza Ghanizadeh Abry - Web page: https://patentgrep.com/patent/US11297988B2 ## CPC - A47L 9/1427: {Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters} - A47L 5/24: Hand-supported suction cleaners - A47L 9/19: Means for monitoring filtering operation - A47L 9/24: Hoses {or pipes}; Hose {or pipe} couplings (hoses or hose joints in general F16L) - A47L 9/248: {Parts, details or accessories of hoses or pipes (nozzles A47L9/02)} - A47L 9/2884: {Details of arrangements of batteries or their installation} - A47L 9/322: {for hand-supported suction cleaners} - H01M 50/247: specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - Y02E 60/10: Energy storage using batteries - 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) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract This invention relates to a bagged vacuum cleaner, i.e. to a vacuum cleaner in which dirt and debris is collected in a disposable bag. The vacuum cleaner (10) has a body (12), the body having a dirt-collection chamber (26), a motor (14) and an impeller (16). The body also has an inlet duct (30) upstream of the dirt-collection chamber, the inlet duct being connected to an inlet tube (36) adapted to fit to an opening of the disposable bag. A wall (40) of the inlet duct adjacent to the inlet tube (36) is transparent so that a user can look through the wall and into the inlet tube to observe whether or not the bag is full. ## Claims ### Claim 1 A hand-held vacuum cleaner having a body, the body having a carrying handle, a dirt-collection chamber, a motor, an impeller and at least one battery for powering the motor, the body having a housing located at the top of the body and above the dirt-collection chamber, the housing containing an inlet duct which is upstream of the dirt-collection chamber, the inlet duct being connected at one of its ends to an inlet tube which is carried by the housing and which projects from the housing into the top of the dirt-collection chamber and is adapted to fit to an opening of a disposable bag, the inlet duct being connected at its other end to a nozzle which projects from the housing, a wall of the inlet duct adjacent to the inlet tube providing an exterior wall of the housing and being transparent. ### Claim 2 (depends on 1) A vacuum cleaner according to claim 1 in which the at least one battery is mounted in the carrying handle. ### Claim 3 (depends on 1) A vacuum cleaner according to claim 1 in which the motor is located below the carrying handle. ### Claim 4 (depends on 1) A vacuum cleaner according to claim 1 in which the motor and the impeller are located adjacent to the bottom of the dirt-collection chamber. ### Claim 5 (depends on 1) A vacuum cleaner according to claim 1 in which the body has a removable top. ### Claim 6 (depends on 5) A vacuum cleaner according to claim 5 in which the removable top comprises a part of the inlet duct including the transparent wall. ### Claim 7 (depends on 5) A vacuum cleaner according to claim 5 in which the removable top has a pair of finger grips. ### Claim 8 (depends on 1) A vacuum cleaner according to claim 1 in which the transparent wall is adjacent to the nozzle whereby a user can look through the transparent wall and through the nozzle. ### Claim 9 (depends on 1) A vacuum cleaner according to claim 1 having a light to illuminate the inlet duct. ### Claim 10 A vacuum cleaner having a body, the body having a dirt-collection chamber, a motor and an impeller, the body having an inlet duct upstream of the dirt-collection chamber, the inlet duct being connected to an inlet tube adapted to fit to an opening of a disposable bag, a wall of the inlet duct adjacent to the inlet tube being transparent, in which the body has a removable top, in which the removable top has a pair of finger grips, and in which the transparent wall is located between the finger grips. ### Claim 11 (depends on 10) A vacuum cleaner according to claim 10 in which the body has a carrying handle. ### Claim 12 (depends on 11) A vacuum cleaner according to claim 11 having at least one battery for powering the motor. ### Claim 13 (depends on 12) A vacuum cleaner according to claim 12 in which the at least one battery is mounted in the carrying handle. ### Claim 14 (depends on 11) A vacuum cleaner according to claim 11 in which the motor is located below the carrying handle. ### Claim 15 (depends on 10) A vacuum cleaner according to claim 10 in which the inlet tube opens into the top of the dirt-collection chamber and the motor and the impeller are located adjacent to the bottom of the dirt-collection chamber. ### Claim 16 (depends on 10) A vacuum cleaner according to claim 10 in which the body has a nozzle, and in which the transparent wall is adjacent to the nozzle whereby a user can look through the transparent wall and through the nozzle. ### Claim 17 (depends on 10) A vacuum cleaner according to claim 10 having a light to illuminate the inlet duct.