51
Michael Culbertson, James E Keller: Drive arrangement for rotary shredding apparatus. Saturn Manufacturing, Klarquist Sparkman Campbell Leigh Hall & Whinston, July 12, 1977: US04034918 (35 worldwide citation)

A rotary shredder for waste materials has a pair of counterrotating cutting shafts, each of which mounts a series of spaced-apart disc-type cutters. The cutters on one shaft extend into the spaces between cutters on the other shaft so that the cutters on the two shafts coact to shred material fed th ...


52
Darm William J: Grease-collecting heat exchanger installation. Klarquist Sparkman Campbell Leigh Hall & Whinston, August 6, 1974: US3827343 (35 worldwide citation)

A heat exchanger with a set of channels through which grease laden air travels. Relatively cool air passes through the heat exchanger in a second set of channels. Washing means including liquid tubes within the first set of channels is provided for washing collected grease from the surfaces defining ...


53
Aaron U Jones, Francis E Allen: Automatic sawmill apparatus. Seneca Sawmill Company, Klarquist Sparkman Campbell Leigh Hall & Whinston, April 8, 1980: US04196648 (34 worldwide citation)

A cant or plank is moved forwardly on a conveyor system, where its irregular leading lateral edge is measured by a plurality of fixed scanners. In response to measurement of the cant, conveyor movement is altered for orienting the cant relative to a fixed saw line to be executed by a movable saw. Th ...


54
James P Petermann, Frederick D Helversen, Jack A Thomas: Automatic spray cleaning apparatus and method. Georgia Pacific Corporation, Klarquist Sparkman Campbell Leigh Hall & Whinston, October 12, 1976: US03985572 (34 worldwide citation)

An automatic high pressure spray cleaning apparatus and method for rapidly and efficiently removing material coated on the surface of an object are described. In accordance with the invention the axis of the cleaning liquid spray forms an acute angle with the object surface and such angle, as well a ...


55
Russell James T: Photographic records of digital information and playback systems including optical scanners. Battelle Development Corporation, Klarquist Sparkman Campbell Leigh Hall & Whinston, April 23, 1974: US3806643 (34 worldwide citation)

An electrical signal recording and playback system is described in which an analog input signal is converted to a digital signal that pulses a light source to form a single, series-recorded track of binary coded digital information including information spots arranged in groups separated by synchron ...


56
Ralph W Lamb: Abrasive or sand blast apparatus and method. Klarquist Sparkman Campbell Leigh Hall & Whinston, November 30, 1976: US03994097 (33 worldwide citation)

Sand blast apparatus is disclosed, which includes a housing with a water inlet nozzle positioned in its rear wall for producing a gradually diverging water jet in the housing, a sand inlet conduit extending obliquely downwardly into said housing, and a discharge nozzle having tapered and cylindrical ...


57
Jay D Hendrickson Jr: Food pellet former. Castle & Cooke, Klarquist Sparkman Campbell Leigh Hall & Whinston, November 16, 1976: US03991440 (33 worldwide citation)

A filling spout supplies a food slurry under pressure to one portion of a rotating drum having molding cavities through its periphery to fill the cavities. An ejector inside the drum applies hot fluid under pressure to the inner ends of the pellets in the cavities to eject them from the drum. The dr ...


58
George C Payne: Ferrous/non-ferrous metal detector using sampling. White s Electronics, Klarquist Sparkman Campbell Leigh Hall & Whinston, August 29, 1978: US04110679 (32 worldwide citation)

A metal detector for detecting and distinguishing between ferrous and non-ferrous objects in an area which may contain a ferrous, mineralized soil background is disclosed. The hysteresis effect is used to distinguish between ferrous and non-ferrous objects by generating groups of transmit current pu ...


59
Edwin C Huie: Small building heating system. Klarquist Sparkman Campbell Leigh Hall & Whinston, March 16, 1976: US03944136 (32 worldwide citation)

A heater unit and draft control adapted to be connected to an existing solid, liquid or gas fueled heating furnace includes a heat exchanger having a stack gas passage connected in series to a stack from the furnace and a blower which forces air through the heat exchanger and into the plenum of the ...


60
John A Cleaveland: Contact lens handling tools. Klarquist Sparkman Campbell Leigh Hall & Whinston, May 31, 1977: US04026591 (32 worldwide citation)

A light passing, contact lens inserting tube having an annular lens holder is inserted through a plunger tube in an extended position and into a friction collar freely slidable in a tubular handle mounted fixedly on the plunger tube which is spring urged to a retracted position relative to an eye cu ...