1
Thomas P Hedman, John P Kostuik, Geoffrey R Fernie, Brian E Maki: Artificial spinal disc. Health & Research Services, Rogers Bereskin & Parr, July 26, 1988: US04759769 (827 worldwide citation)

An artificial disc for a human spine. The disc has upper and lower members hinged together at their rear portions and biased apart at their fronts by stiff coil springs. Rear stop surfaces limit the opening movement of the members. Vertically projecting tabs at the front and side of each member are ...


2
Robert E Generoux: Drill bit. Lamage, Rogers Bereskin & Parr, December 5, 1978: US04128136 (150 worldwide citation)

A diamond drill coring bit having an annular crown and inner and outer concentric side surfaces. The crown is formed from a number of radially extending composite segments spaced apart circumferentially by a circumferential spacer material, all integrally bonded together. Each composite segment cons ...


3
Reginald D Richardson, Robert H Shannon: Heavy oil recovery process. Rogers Bereskin & Parr, July 10, 1979: US04160479 (136 worldwide citation)

A process incorporating integrated units and combined cycle energy production is provided for the recovery and upgrading of oil containing deposits which are not readily amenable to recovery and upgrading, to produce therefrom a light oil and elemental sulphur. Residual hydrocarbons generated in the ...


4
Thomas S Gale: Three-dimensional sight and sound reproduction apparatus for individual use. Rogers Bereskin & Parr, August 28, 1990: US04952024 (124 worldwide citation)

A three dimensional sight and sound reproduction apparatus for individual use is disclosed. The apparatus includes a headset having a central rib connecting an eye covering portion, a pair of depending lens and a rear portion. The eye covering portion substantially blocks ambient light from being vi ...


5
Albert Stirling: Crimpless coaxial cable connector with pull back cable engagement. Stirling Connectors, Rogers Bereskin & Parr, April 16, 1991: US05007861 (122 worldwide citation)

A crimpless coaxial cable connector is provided which can be secured to a cable simply by pushing the cable into the connector and subsequently pulling it back. The body of the connector has a bushing mounted within it near the cable receiving end having a diameter to closely receive the cable. The ...


6
Donald J Douglas, John B French: Mass spectrometer and method and improved ion transmission. MDS Health Group, Rogers Bereskin & Parr, October 16, 1990: US04963736 (117 worldwide citation)

In a mass spectrometer system, ions travel through an orifice in an inlet plate into a first vacuum chamber containing AC-only rods, and then through an orifice into a second vacuum chamber containing a standard quadrupole. The second vacuum chamber is held at low pressure, e.g. 0.02 millitorr or le ...


7
James Francis Butler: Thin film electrochemical electrode and cell. Rogers Bereskin & Parr, December 13, 1977: US04062750 (111 worldwide citation)

A thin film polarographic oxygen sensor, in which a number of thin film microcathodes are deposited in holes in a thin film layer of silicon dioxide formed on a silicon substrate. A single thin film anode layer is deposited on the insulating layer and is insulated thereby from the cathodes. Preferab ...


8
Michael T Clandinin, Janet E Chappell: Infant formula. The University of Toronto Innovations Foundation, Rogers Bereskin & Parr, June 2, 1987: US04670285 (109 worldwide citation)

The invention provides an edible fat product for incorporation into a formula suitable for feeding infants. The product includes certain fatty acids, namely, at least one of a C.sub.20 or C.sub.22, .omega.-6 fatty acid and a C.sub.20 or C.sub.22, .omega.-3 fatty acid, found to be present in human mi ...


9
Frank T Phipps: Pool liner retainer. Timerax Holdings, Rogers Bereskin & Parr, December 27, 1977: US04064571 (94 worldwide citation)

A swimming pool liner retainer system is shown which includes a holding assembly and a liner bead. The holding assembly is located around the peripheral edge portion of the pool, and the liner bead is formed on the peripheral portion of the swimming pool liner. The holding assembly includes an elong ...


10
Shira Jerry P: Integral hinged wiring raceway. Kyoda Plastics, Rogers Bereskin & Parr, January 15, 1974: US3786171 (90 worldwide citation)

A surface mounting electrical wiring raceway having a back member adapted to be mounted on a wall, and a front cover. The front cover is hingeably connected to the back member adjacent to one lateral edge thereof, and releaseably coupled to the back member adjacent to the opposite lateral edge. The ...