Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Application No. | Application Title | Issue Date |
| 20100320224 | System for Avoiding Excessive Pressure while Discharging Compressed Gas Cylinders A system and method of safely discharging hydraulic fluid from a compressed gas cylinder, comprises filling first and second compressed gas cylinders with compressed gas. A compressed gas dispensing system has a pump that pumps hydraulic oil into the compressed gas cyli... | 12/23/2010 |
| 20100059138 | Method of Pressurizing a Gas Cylinder While Dispensing from Another A fixed and/or stationary modular unit consists of a hydraulic fluid tank and a pressurization pump. A compressed gas transportation system consists of a set of cylinders. Each cylinder has a charging port and a dispensing port. A valve is connected at the dispensing po... | 03/11/2010 |
| 20090293988 | System for Charging and Purging a Compressed Gas Cylinder A fixed and/or stationary modular unit consists of a hydraulic fluid tank, a pressurization pump, and a compressed gas transportation system consisting of a cylinder or set of cylinders. Each cylinder has two ends, a charging end and a dispensing end, with actuated valv... | 12/03/2009 |