1
Gravlee Leland C, Barringer Hulbert V: Dilating apparatus and method. Becton Dickinson and Company, Kane Dalsimer Kane Sullivan and Kurucz, May 21, 1974: US3811449 (138 worldwide citation)

To accurately dilate tissue preparatory to introducing medical instruments therein, an elongated, flexible probe of uniform diameter having a rounded insertion tip is employed to sound the tissue. An elongated, hollow, flexible dilator is then slidably passed over the probe to coaxially abut the pro ...


2
Larnerd John D, McGarigle Donald M, Samuelson Carl E: Method of aligning and attaching circuit devices on a substrate. International Business Machines Corporation, Johnson Kenneth P, May 21, 1974: US3811186 (127 worldwide citation)

Method for aligning and supporting micro-circuit devices on substrate conductors during attachment thereto in which shaped, flexible, insulative material is placed between the devices and their respective conductors to support heat fusible terminals of the devices in alignment with mating heat-fusib ...


3
Heller Jorge, Baker Richard W: Bioerodible ocular device. Alza Corporation, Ciotti Thomas E, Mandell Edward L, Sabatine Paul L, May 21, 1974: US3811444 (103 worldwide citation)

An ocular insert for the continuous controlled administration of a predetermined therapeutically effective dosage of drug to the eye over a prolonged period of time. The insert comprises a drug formulation dispersed through a body of selected hydrophobic polycarboxylic acids which erode in the envir ...


4
Gartner Klaus W: Electronic combination lock including sequential signal generator and signal display. Miketta Glenny Poms & Smith, May 21, 1974: US3812403 (93 worldwide citation)

A manually-actuated electronic combination lock is provided in which the combination code consists of certain preselected digital signals out of a field of many such signals. Circuit means provide for generating a sequence of digital signals constituting the field in response to sustained manual eng ...


5
Flournoy Kenoth H, Cardenas Ricardo L, Haferkamp Gilbert L, Shupe Russell D: Surfactant oil recovery process usable in formations containing water having high concentrations of polyvalent ions such as calcium and magnesium. Texaco, Whaley T H, Reis C G, May 21, 1974: US3811505 (87 worldwide citation)

A dual surfactant system usable in the presence of from about 500 to about 9,000 parts per million polyvalent ions, such as calcium and/or magnesium, and a method of using said surfactant system for recovering petroleum from subterranean formations, said surfactant system comprising a water soluble ...


6
Bauer Robert, Rosenfield Richard Gordon, Rupe Chauncey Orvis: Test device for detecting low concentrations of substances in fluids. Miles Laboratories, May 21, 1974: US3811840 (83 worldwide citation)

Test device for detecting low concentrations of substances in test fluids comprising an absorbent wick having a substantially flat surface portion enclosed in a fluid impervious sheath having an aperture of predetermined limited area formed therein, the aperture being contiguous to and exposing a pr ...


7
Ohringer Jack G: Slit diaphragm valve. Sciascia R S, Curry Charles D B, May 21, 1974: US3811466 (81 worldwide citation)

A slit diaphragm valve having a slit diaphragm and a control plate retained in facial contact. The slit diaphragm is a circular sheet of rubber having a centrally positioned elongated slit. The control plate is a flat perforated circular metal plate with a centrally positioned control opening. Fluid ...


8
Burrell Harry, Miller Jr Robert C: Printing method for forming three dimensional simulated wood grain, and product formed thereby. Inmont Corporation, Arvidson Phillip R, May 21, 1974: US3811915 (80 worldwide citation)

A printing method, the ink used therein and the product formed thereby.The printing method is a method for producing simulated wood grain, or other patterned surfaces, preferably comprising the steps ofA. coating a substrate with a ground coatB. applying to the dried ground coat a graining ink compr ...


9
Redemske Richard K: Plastic modular furniture. Faber Irving, May 21, 1974: US3811728 (79 worldwide citation)

This invention relates to a new concept for plastic modular furniture using a unique system to combine individual modular components into a plurality of combinations for seating, sleeping, or storage. The invention comprises a plurality of individual molded plastic base modules having a plurality of ...


10
Ohta Wasaburo, Kasuya Kazuhiko, Fujimoto Sakae, Yamauchi Masayuki: Process and device for heating and fixing an image upon a recording medium. Ricoh, Cooper Dunham Clark Griffin & Moran, May 21, 1974: US3811828 (78 worldwide citation)

An endless belt arranged to travel around a source of infrared radiation is used in fixing an image on a recording medium as the recording medium is advanced past the belt. The belt, driven in the direction of advance of the recording medium by a drive roller spaced away from the infrared radiation ...