# US 6,719,085 B2 · Retractable ornament assembly for an exhaust pipe of a vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,719,085 B2 - Document ID: US6719085B2 - Status: Granted - Kind: B2 - Application number: 10/157,316 - Filed: 2002-05-29 - Published: 2002-12-05 - Granted: 2004-04-13 - Earliest claimed: 2001-05-31 - Assignees: Mong-Yu Lee - Inventors: Mong-Yu Lee - Web page: https://patentgrep.com/patent/US6719085B2 ## CPC - F01N 13/082: {of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation (F01N13/20 takes precedence)} - B60K 13/04: concerning exhaust - F01N 2260/06: for improving exhaust evacuation or circulation, or reducing back-pressure - F01N 2290/00: Movable parts or members in exhaust systems for other than for control purposes - F01N 2290/04: driven by exhaust gases - F01N 2450/24: by bolts, screws, rivets or the like - F01N 2450/40: Retrofitting exhaust apparatus - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES ## Abstract An ornament assembly for an exhaust pipe of a vehicle has a sleeve, an axle, a spring and a propeller. The sleeve is secured in an opening end of the exhaust pipe. The axle is moveably received in the sleeve. The axle has a first end exposed from the sleeve and a second and extending into the sleeve. The spring is received in the sleeve and is securely attached between the sleeve and the second end of axle. The propeller is rotatably mounted on the first end of the axle. Accordingly, the propeller will rotate when the waste gases are emitted from the exhaust pipe, and the axle will move relative to the sleeve. This can provide an excellent visual effect to the vehicle, and the appearance of the vehicle is improved. ## Claims ### Claim 1 An ornament assembly for an exhaust pipe of a vehicle comprising: a sleeve adapted to be secured in an opening end of the exhaust pipe; an axle retractably received in the sleeve and having a first end exposed from the sleeve and a second end extending into the sleeve; a spring received in the sleeve and securely attached to the second end of the axle to provide a recoil force to the axle; and a propeller rotatably mounted on the axle at a position exposed from the sleeve, wherein exhaust gases impinge upon the propeller to rotate the propeller radially, and the spring enables axial movement of the axle relative to the exhaust pipe according to the force of the exhaust gases. ### Claim 2 (depends on 1) The ornament assembly as claimed in claim 1 further comprising a stand adapted to be securely attached to the exhaust pipe with a fastener and having a tab for the sleeve being securely attached to the tab. ### Claim 3 (depends on 2) The ornament assembly as claimed in claim 2, wherein the stand has a body with a U-shaped cross section and adapted being mounted around a part of a periphery of the exhaust pipe; the body has a first end adapted for being exposed from the exhaust pipe and a second end adapted for extending into the exhaust pipe; and the tab extends downward from the second end of the body of the stand and adapted to extend toward a center line of the exhaust pipe. ### Claim 4 (depends on 3) The ornament assembly as claimed in claim 3, wherein the tab has multiple bores defined in the tab; a bolt extends through one of the bores in the tab and the sleeve to screw with a nut so as to secure the sleeve to the tab with the bolt and the nut. ### Claim 5 (depends on 4) The ornament assembly as claimed in claim 4, wherein the spring has a first end extending outward from the sleeve and hooked on one of the bores in the tab and a second end securely attached to the second end of the axle, whereby the spring is stretched when the axle moves outward from the sleeve. ### Claim 6 (depends on 1) The ornament assembly as claimed in claim 1, wherein the sleeve has an opening defined in one end of the sleeve; a cap is attached to the end of the sleeve to close the opening in the sleeve; and a central hole is defined in the cap for the axle penetrating through the central hole. ### Claim 7 (depends on 6) The ornament assembly as claimed in claim 6, wherein the spring has a first end abutting the cap and a second end securely attached to the second end of the axle, whereby the spring is compressed when the axle moves outward from the sleeve. ### Claim 8 (depends on 7) The ornament assembly as claimed in claim 7 further comprising a stop attached to the axle to abut the cap so as to limit a travel of the axle relative to the sleeve. ### Claim 9 (depends on 1) The ornament assembly as claimed in claim 1 further comprising a bearing mounted between the axle and the propeller to make the propeller freely rotate relative to the axle. ### Claim 10 (depends on 6) The ornament assembly as claimed in claim 6, wherein the propeller is rotatably mounted on the first end of the axle. ### Claim 11 (depends on 1) The ornament assembly as claimed in claim 1, wherein the sleeve is adapted to be attached to a tail pipe that is attached to the exhaust pipe to enhance the appearance of the vehicle. ### Claim 12 (depends on 1) The ornament assembly for an exhaust pipe of a vehicle of claim 1, wherein the propeller exits and reenters the exhaust pipe as a result of the axial movement.