# US 8,465,347 B2 · Retractable water dispenser arm for grinder/polisher > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,465,347 B2 - Document ID: US8465347B2 - Status: Granted - Kind: B2 - Application number: 12/501,623 - Filed: 2009-07-13 - Published: 2010-03-11 - Granted: 2013-06-18 - Earliest claimed: 2008-09-11 - Assignees: Illinois Tool Works Inc. - Applicants: Michael F. Hart - Inventors: Michael F. Hart - Web page: https://patentgrep.com/patent/US8465347B2 ## CPC - B24B 53/017: Devices or means for dressing, cleaning or otherwise conditioning lapping tools - G01N 1/32: Polishing; Etching - Y10T 137/6918: With hose storage or retrieval means - Y10T 137/6943: Biased to retracted position - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A retractable water dispenser arm system for a grinder/polisher includes a flexible hose formed, in part in a loop and affixed at at least one location to a base of the grinder polisher. A spout is mounted to an end of the flexible hose. A biased tension arm engages the hose at the loop, and is moveable, along with movement of the hose, to maintain the hose in tension. The biased tension arm includes a roller over which the hose traverses. A mount on the base is configured to receive the spout and is further configured for traverse of the hose therethrough. The mount includes a mount roller operably mounted thereto for guiding the hose through the mount. ## Claims ### Claim 1 A retractable water dispenser arm system for a grinder/polisher, the grinder/polisher having a bowl, the water dispenser arm comprising: a flexible hose formed, in part in a loop and affixed at at least one location to a base of the grinder polisher, the flexible hose defining a fixed portion and an extendable/retractable portion; a spout mounted to an end of the extendable/retractable portion; a biased tension arm engaging the hose at the loop, the biased tension arm moveable, along with movement of the hose, to maintain the hose in tension, the biased tension arm including a roller over which the hose traverses, the biased tension arm urging the flexible hose into a retracted state; a mount into which the spout rests and through which the hose traverses; and cooperating movement limiting elements on the spout and the mount to limit rotation of the spout relative to the mount, wherein the spout and extendable/retractable portion of the hose are retracted from the grinder/polisher and wherein the biased tension arm is biased to and retracts the spout and extendable/retractable portion back into the grinder/polisher. ### Claim 2 (depends on 1) The retractable water dispenser arm in accordance with claim 1 including a mount roller operably mounted to the mount for guiding the extendable/retractable portion through the mount. ### Claim 3 (depends on 1) The retractable water dispenser arm in accordance with claim 1 including a biasing element for biasing the biased tension arm. ### Claim 4 (depends on 3) The retractable water dispenser arm in accordance with claim 3 wherein the biasing element is a spring mounted at one end to the biased tension arm and at an opposite end to the grinder/polisher. ### Claim 5 (depends on 1) The retractable water dispenser arm in accordance with claim 1 wherein the cooperating movement limiting elements include a pin disposed in the spout and a notch disposed in the mount to maintain the spout positioned over the bowl. ### Claim 6 (depends on 1) The retractable water dispenser arm in accordance with claim 1 wherein the fixed portion is maintained fixed by a plurality of mounting elements secured to the grinder/polisher. ### Claim 7 (depends on 6) The retractable water dispenser arm in accordance with claim 6 wherein the mounting elements are clips. ### Claim 8 (depends on 2) The retractable water dispenser arm in accordance with claim 2 wherein the mount roller includes a channel therein to direct the extendable/retractable portion through a bore in the mount. ### Claim 9 (depends on 2) The retractable water dispenser arm in accordance with claim 2 wherein the biased tension arm roller and the mount roller are formed from a non-abrading material. ### Claim 10 (depends on 9) The retractable water dispenser arm in accordance with claim 9 wherein the non-abrading material is a plastic.