1
Sidney T Fisher, Charles B Fisher: Exraction of hydrocarbons in situ from underground hydrocarbon deposits. R H Barrigar, August 3, 1976: US03972372 (59 worldwide citation)

A method of extracting hydrocarbons in situ from an underground hydrocarbon deposit (such as petroleum or lignite). A selected part of the deposit is heated by electrical induction to temperatures high enough to drive off hydrocarbon fractions as gases or vapors, which are then collected. The deposi ...


2
Luis Bate, Wendell E Dawson: Poultry feeder. University of Prince Edward Island, R H Barrigar, Lynn S Cassan, P Scott Maclean, May 21, 1996: US05517944 (12 worldwide citation)

A feeder for poultry comprising a feed tray, a feed supply stack secured on the tray and audio conveying means to facilitate dispersion of feeding behavior enhancing sounds from the stack a feeding period.


3
Darren Koretz: Ice fishing rig. R H Barrigar, Lynn S Cassan, May 28, 1996: US05519958 (5 worldwide citation)

There is an ice fishing rig and a kit for the same. The rig is selectively adjustable between `tip-up` and `rod-and reel` configurations. The kit comprises a handle, an elongated reel securable to the handle, and a rod selectively securable to the handle in a forwardly projecting position or a rearw ...