31
William P Gundy: Core drill. Larson Taylor and Hinds, June 17, 1980: US04208154 (70 worldwide citation)

Improved core drills and core drill elements. The core drill is of the type having a carrying drill tube and at least one cutting element attached to one end of drill tube. In the present invention, structural means are provided on one end surface of the cutting element extending over the entire len ...


32
Herman W Kouwenhoven, Willem H J Stork: Crystalline silicates and process of preparation. Shell Oil Company, Ronald R Reper, June 17, 1980: US04208305 (68 worldwide citation)

Novel crystalline silicates which in dehydrated form having the composition in terms of moles of the oxides: (1.0.+-.0.3) (R).sub.2/n O. [a Fe.sub.2 O.sub.3. b Al.sub.2 O.sub.3. c Ga.sub.2 O.sub.3. y(dSiO.sub.2. eGeO.sub.2)], wherein R is one or more mono- or bivalent cations and a, b, c, d, e, y an ...


33
William J Balka Jr: Automatic ball server. H Hume Mathews, June 17, 1980: US04207857 (67 worldwide citation)

Automatic ball serving apparatus for serving, lobbing, volleying or smashing balls, such as tennis balls, for practice purposes wherein two cans or buckets are vertically stacked to form a lower generally cylindrical compressed air chamber and an upper generally cylindrical ball feed chamber, a ball ...


34
Russell J Diefendorf, Dennis M Riggs: Forming optically anisotropic pitches. Exxon Research & Engineering Co, Joseph J Dvorak, June 17, 1980: US04208267 (66 worldwide citation)

An improved process for preparing liquid-crystal containing pitches comprises extracting carbonaceous isotropic pitches with an organic solvent system to provide a solvent insoluble fraction which when heated for 10 minutes or less and to temperatures in the range of about 230.degree. C. to 400.degr ...


35
William G Deichert, Joseph J Falcetta, Kai C Su: Shaped body of at least two polymerized materials and method to make same. Bausch & Lomb Incorporated, Ronald L Lyons, Frank C Parker, June 17, 1980: US04208362 (66 worldwide citation)

A shaped body is manufactured from at least two polymerized materials with one polymerized material being swellable relative to the other polymerized material. The shaped body is formed having sections of the first material, the second material and a substantially random copolymer of the first and s ...


36
Kazuo Nate, Kyoko Kotsuka, Tokio Isogai: Method for mounting parts on circuit boards. Hitachi, Craig & Antonelli, June 17, 1980: US04208005 (65 worldwide citation)

One or more parts having terminals can be mounted on a circuit board by coating an ultraviolet-curing and thermosetting resin composition comprising an ultraviolet-curing resin, an addition polymerizable monomer, a photosensitizer and a heat polymerization initiator, on the circuit board by screen p ...


37
Thomas H Shepherd: Process for the production of contact lenses. Cushman Darby & Cushman, June 17, 1980: US04208364 (63 worldwide citation)

There is provided a mold comprising a male and a female mold member fabricated from thermoplastic polymeric materials which, in very thin sections are flexible under polymerization conditions, but, under said conditions are sufficiently inflexible in thick sections to retain their shape and surface ...


38
Allan M Sandeman, James D Bell: Flexible bulk container. Tay Textiles, Neil F Markva, June 17, 1980: US04207937 (60 worldwide citation)

A flexible bulk container for carrying up to one ton of material in e.g. granular form. The container includes a bag of woven fabric such as polypropylene. Where necessary for reasons of reinforcement, i.e. where lifting loops are attached, or adjacent seams, the warp of the fabric is of increased s ...


39
Philip H Davies, Franklin M Lohning: Auxiliary offshore rig and methods for using same. Franklin Enterprises, Pravel Gambrell Hewitt Kirk Kimball & Dodge, June 17, 1980: US04208158 (60 worldwide citation)

An auxiliary offshore rig adapted to be used for relieving the primary offshore rig on an offshore platform of well activities relating to tubular member or cable operations. The auxiliary offshore rig includes in one embodiment a truss member mounted for movement along the platform, a racking tower ...


40
Julius J Ceriani: Cushion construction. Tenneco Chemicals, Thomas E Spath, James P Scullin, June 17, 1980: US04207636 (60 worldwide citation)

This invention relates to a new construction for upholstered seat cushions and backs for chairs and sofas, for throw pillows and the like, wherein a resilient, flexible foam material such as polyurethane foam or latex foam rubber, having a convoluted front and rear surface is provided with a wrappin ...