Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7252310 | Pipe coupling with tongue and groove sealing sleeve A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside the band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the co... | 08/07/2007 |
| 7228935 | Attachment pin for an exhaust-gas muffler The invention relates to an attachment pin (1) for fixing an exhaust-gas muffler (2) in an apparatus part (4) of a portable handheld work apparatus (5) driven by an internal combustion engine. The exhaust-gas muffler (2) includes e... | 06/12/2007 |
| 7055868 | Corrugated tube fitting A fitting for an end of a length of corrugated tubing forms a gas-tight metal-to-metal seal by rolling and folding an endmost corrugation into a axially extending annular groove in the fitting body. A ridged retainer grips the tubing corrugations above the endmost c... | 06/06/2006 |
| 7025393 | Pipe coupler with tongue and groove sealing sleeve A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside to band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the con... | 04/11/2006 |
| 6908114 | Pre-assemblable, push-in fitting connection for corrugated tubing Fitting connections for corrugated metal tubing. The connection includes a body having an externally-threaded end, a nut or other fastener which is threadably engageable with the body end, and a collet which is receivable coaxially within the fastener. The collet is... | 06/21/2005 |
| 6202369 | Universal anchor system An anchor system for alternate types of signage includes an elongated anchor member and an attached, lowermost formation engageable with an underlying foundation to firmly support the anchor member in a substantially vertical disposition. A bore within th... | 03/20/2001 |
