1
Joseph C Allen: Method for recovering subsurface earth substances. Barber Heavy Oil Process, Bard & Groves, March 24, 1981: US04257650 (139 worldwide citation)

This invention relates to methods and systems for recovering high viscosity oils, petroleum substances and other minerals from subsurface earth formations. In particular, one or more large diameter shaft holes are provided which preferably terminate in an enlarged subterranean chamber. A plurality o ...


2
Eugene N Scarberry: Emergency resuscitation apparatus. Bard & Groves, November 4, 1980: US04231365 (137 worldwide citation)

An emergency resuscitation apparatus is provided by an endotracheal tube having a tracheal obturator and a second expandable cuff for sealing against the pharyngeal tissues to provide an alternate sealing means for respiratory fluids if the blind intubation is not successful. A laryngeal tube passes ...


3
Rainer Kuenzel: Thread protector apparatus. Bard Groves Sroufe & Bishop, April 12, 1983: US04379471 (99 worldwide citation)

A thread protector apparatus is disclosed for drill pipe. The apparatus is similarly constructed for both male and female threads. The apparatus utilizes an encircling tubular member which is spaced away from and concentric with the threaded portion of the drill pipe. At the edge of the tubular port ...


4
Joseph C Allen: Method for recovering high viscosity oils. Heavy Oil Process, Bard Groves Sroufe Bishop & Berger, October 18, 1983: US04410216 (81 worldwide citation)

Improved methods and apparatus are provided for recovering high viscosity oils from sub-surface earth formations. In particular, a large diameter shaft hole is employed and a plurality of substantially horizontal drill holes extend radially from the shaft hole into the formation. It is a feature of ...


5
John F Jordan, Curtis M Lampkin: Solar cell array. Photon Power, Bard & Groves, January 6, 1981: US04243432 (80 worldwide citation)

An array of photovoltaic cells in a back wall-type configuration supported by a rigid transparent vitreous substrate, such as glass, for admitting incident radiation to the cells. A plurality of cells are interconnected into a desired electrical configuration by one or more layers of electrically co ...


6
Ross G Baker Jr, Richard Van Calfee: Tachycardia arrester. Intermedics, Bard & Groves, July 28, 1981: US04280502 (75 worldwide citation)

A method and apparatus are provided for detecting and arresting a condition of tachycardia. Stimulating pulses are provided in a search routine within a selected time interval after a tachycardia beat. The heart is monitored after each pulse application and the search is terminated when a normal hea ...


7
Harry Kilberis: Keyless chuck. Bard & Groves, July 7, 1981: US04277074 (68 worldwide citation)

Apparatus is provided for opening and closing the jaws of a chuck without the use of a key. This invention is particularly suitable for improving a standard drill chuck so that tools can be easily and rapidly changed without the use of a drill chuck key. In one embodiment of the invention, the first ...


8
Joseph C Allen: Method and apparatus for recovering high viscosity oils. Heavy Oil Process, Bard Groves Sroufe Bishop & Berger, March 6, 1984: US04434849 (63 worldwide citation)

Improved methods and apparatus are provided for recovering high viscosity oils from a sub-surface earth formation utilizing horizontal well apparatus. A plurality of horizontal drill holes extend from a large diameter vertical shaft hole into the formation of interest. Steam may be injected into the ...


9
Robert A Walters: Pacemaker with circuit for pulse width modulating stimulus pulses in accordance with programmed parameter control states. ARCO Medical Products Company, Bard Groves Sroufe Ryerson & Jackson, January 26, 1982: US04312354 (62 worldwide citation)

An implantable pacemaker having circuit means for indicating, by pulse width modulation of the delivered pacing pulses, the programmable control states which control the selected pacemaker operating perameters. The circuitry includes a parallel to serial shift register adapted to receive the control ...


10
Edgar H Pavia: Apparatus for emergency water purification. Bard & Groves, April 1, 1980: US04196081 (55 worldwide citation)

A method and apparatus for the purification of water in emergency situations is provided, comprising a manually operated pump having a discharge port connected to a plurality of series-connected treatment filters. Each filter is chosen for its ability to perform a desired purification function in a ...