Drill motor enclosure
Patent 4402383 Issued on September 6, 1983. Estimated Expiration Date: 
September 1, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 1, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3332504 3599756 3667571 InventorAssigneeApplicationNo. 06/298400 filed on 09/01/1981US Classes:181/202, Electical type devices (e.g., transformers, motors, etc.)173/162.1, INCLUDING MEANS TO VIBRATIONALLY ISOLATE A DRIVE MEANS FROM ITS HOLDER181/207, Mechanical vibration attenuator181/230, Pneumatic type motor (e.g., air hammer, etc.)181/264With baffle or baffle structureExaminersPrimary: Fuller, Benjamin R.Attorney, Agent or FirmInternational ClassesB25D 17/11 (20060101)B25D 17/00 (20060101) H02K 5/24 (20060101) AbstractA drill motor rigid enclosure is provided for a rock drill motor. The drill motor is encompassed within the enclosure such that viration, torque, and thrust produced by the motor is isolated from the rigid enclosure, therefore noise reduction of the drill motor is achieved. | |
