Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 4387295 | Pneumatic penetration sensor for oil drilling A device for accurately measuring the position of a traveling block in a drilling rig or the like which is supported by means of a cable wrapped around a drum winch assembly. A pneumatic sensor coupled to the drum provides a predetermined number of output... | 06/07/1983 |
| 4295123 | Analog-to-digital converter An analog to digital converter device is disclosed. The device includes a plurality of serially connected stages representing bits, each stage including generally a source of current or fluid and a second current or fluid source of opposite polarity, a cu... | 10/13/1981 |
| 4208576 | Automatic reader of processing condition data for articles to be processed in an automatic processing system A pneumatic apparatus used for reading punch cards containing processing condition data for articles being processed in an automatic system. The apparatus has a pneumatic reading head for reading the punch cards, and the head has a plurality of air condui... | 06/17/1980 |
