Bizarre Patents
System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 4155287 | Hydraulically operated impact devices Hydraulic actuation of a device for delivering impact energy to a load, such as a pile driver, is provided by a hydraulically operated oscillator having a piston which is reciprocal in a cylinder under hydraulic forces developed by pressurized hydraulic f... | 05/22/1979 |
| 4143585 | Impact tool An impact tool is described which is capable of developing percussive forces for rock drilling, pile driving, seismic exploration and other repetitive high force applications. The tool contains a hammer and a valve which may be hydraulically actuated so a... | 03/13/1979 |
| 4005637 | Hydroacoustic apparatus and valving mechanisms for use therein Impact tools are described which are capable of developing percussive forces for rock drilling and other repetitive high force applications. A hydroacoustic oscillator contained in such tools includes a hammer and a valve mechanism which is actuated by th... | 02/01/1977 |
| 3991655 | Hydroacoustic apparatus and valving mechanisms for use therein Impact tools are described which are capable of developing percussive forces for rock drilling and other repetitive high force applications. A hydroacoustic oscillator contained in such tools includes a hammer and a valve mechanism which is actuated by th... | 11/16/1976 |
