1
Ewald Frederick C: Joint prostheses. March 26, 1974: US3798679 (208 worldwide citation)

Joint prostheses are disclosed which include a substantially smooth male portion (e.g. a femoral cap or a trochlea) and a mated female portion (e.g. a tibial plateau or an olecrenon). Prosthesis forms may be prepared by forming initially the male portion, pressing the male portion into molding mater ...


2
Cochran William H, Heiling Gerald M: Digitally compensated scanning system. International Business Machines Corporation, Voss Donald F, March 26, 1974: US3800078 (158 worldwide citation)

A self-scanned photodiode array operating in the recharge current mode generates a serial video information output signal as light from a light emitting diode illuminator is reflected from the scanned document and imaged onto the photodiode array. A photodiode sensitivity and illumination variance c ...


3
Vurek Gerald G: Oximeter for monitoring oxygen saturation in blood. The United States of America represented by the Secretary of the, March 26, 1974: US3799672 (121 worldwide citation)

A device for monitoring blood oxygen saturation during extracorporeal bypass procedures comprises a dual wavelength oximeter utilizing an infrared (905 nm) light-emitting diode and a visible red (655nm) light emitting diode to alternately illuminate blood as it flows through a plastic cuvet. The rat ...


4
Fukaumi Masaharu, Mori Toshiyuki: Controllably bendable tube of an endoscope. Olympus Optical, March 26, 1974: US3799151 (118 worldwide citation)

A controllably bendable tube section of an endoscope is connected between the distal end casing and the yieldably flexible main tube of the endoscope. Two pairs of wires extend through the controllably bendable tube section and the flexible tube, the wires in each pair being located at diametrically ...


5
Rollins Richard R: Analgesic apparatus. E I du Pont de Nemours and Company, March 26, 1974: US3799164 (118 worldwide citation)

A hose-linkage device is specifically intended for use in connecting and delivering analgesic gas from a suitable gas supply source to a nasal inhalator which is used in dental work or surgery. The device includes a pair of flexible extension hoses leading away from the gas inlet means on the inhala ...


6
Szpur Roman: Retention catheter. Jacox & Meckstroth, March 26, 1974: US3799172 (99 worldwide citation)

A plurality of circumferentially spaced slits are formed within the inlet end portion of an elongated flexible plastic tube adjacent a resilient tip portion. The slits define links which flex outwardly to expanded retaining positions in response to a pulling force exerted on the tip portion by a sma ...


7
Northcutt Michael E: Device for improving the alignment of the upper and lower sets of teeth with each other. March 26, 1974: US3798773 (85 worldwide citation)

A device and a method for aiding in realignment of teeth where the patient's upper row of teeth lies forward of his lower row of teeth, and the patient has difficulty in achieving an aligned bite. A pair of spring arrangements are provided to assist the patient in moving his upper row of teeth rearw ...


8
Madalin William A, Follis Cecilia A: Insulated covered serving tray. American Hospital Supply Corporation, Dawson Tilton Fallon & Lungmus, March 26, 1974: US3799386 (80 worldwide citation)

A tray assembly for the delivery and service of food, such assembly including a pair of insulated base and cover sections with a plurality of dishes retained therebetween. Handle recesses at opposite ends of the tray section facilitate the carrying and handling of the assembly and indicia means in t ...


9
Fish Raymond M: Auditory display for the blind. The United States of America represented by the Administrator of the, Manning John R, Warden John H, March 26, 1974: US3800082 (76 worldwide citation)

A system for providing an auditory display of two-dimensional patterns as an aid to the blind includes a scanning device, such as a slow scan television camera, for producing first and second voltages respectively indicative of the vertical and horizontal positions of the scan and a further voltage ...


10
Curley John L, Martland Wallace A: Variable masking for segmented memory. Honeywell Information Systems, Prasinos Nicholas, Reiling Ronald T, March 26, 1974: US3800292 (74 worldwide citation)

A variable masking technique and apparatus for simultaneously accessing under program control a variable number of bytes b of information stored in groups of i bytes per group in any of n modules of a storage device that is capable of operating in any of m storage modes. Storage is provided by a mul ...