Abstract: In a method generating correlative data from various products of thermal degradation of biological specimens and comprising sequential steps for each specimen of degrading such specimen by heating such specimen so as to cause various products of thermal degradation of such specimen to be evolved, ionizing the products of thermal degradation of such specimen by a technique causing negligible fragmentation, detecting ion currents for such specimen, and recording such detected ion currents, an improvement is attained wherein each specimen is heated in an identical non-isothermal time-dependent heating sequence, wherein a three-dimensional array comprising a large and sufficient number of ion currents, which correspond to substantially all detectible ratios of mass-to-charge within a range at a large and sufficient number of successive instants during the respective heating sequences, are detected and recorded for each specimen, and representative data from the three-dimensional array thus recorded for each one o
Type:
Grant
Filed:
March 14, 1977
Date of Patent:
October 24, 1978
Assignee:
Chemetron Corporation
Inventors:
Terence H. Risby, Alfred L. Yergey, III
Abstract: An iron-chromium-cobalt magnetic alloy characterized by good magnetic quality, improved hot and cold ductility and by a reduction in the minimum temperature for complete solutioning; and processing for producing said alloy. Hot ductility is improved through controlled additions of rare earth elements in conjunction with modified refining. Cold ductility is improved through a rapid cool subsequent to hot working and prior to cold working. Solutioning temperatures are lowered through controlled additions of vanadium and titanium.
Abstract: In treating certain types of steel strip, it passes through a plurality of processes including a salt bath having a driven sink roll therein. In order to by-pass the salt bath means are provided to raise and lower the sink roll and its drive while maintaining them horizontal. This permits changing from one type of strip which is subject to the salt bath to another type of strip which is not subject to the salt bath without rethreading the entire line. A guide roll at the exit end of the salt bath tank is below and out of contact with the strip which has been in the salt bath, but is raised into contact with strip which by-passes the salt bath. A baffle is provided to cover the guide roll in its lower position and uncover it in its upper position.
Abstract: A control station for use with multiple operator power supplies in a semiautomatic welding system is disclosed. The system utilizes a constant-potential multiple operator unit, suitable for gas-metal arc spray transfer welding, to which control stations may be connected to provide satisfactory short-circuiting arc operation for selected operators. The control station comprises a plurality of resistors selectably connectable in specified parallel relationships through switching means and an iron core inductor to provide the required operating characteristics for short-circuit welding.
Abstract: A control circuit is provided for a microwave oven in which a crystal rectifier is responsive to variations in the level of the electromagnetic field within the oven cavity when items of different energy absorption or reflection characteristics are placed in the oven. The electric current developed by the crystal is employed to generate a ramp type electrical signal which is compared with a fixed reference voltage to control the termination of microwave power to the oven. Compensation for the nonlinear relationship between crystal current and the level of the electromagnetic field within the oven is provided. In addition, compensation for the initial temperature of the food item which is placed in the oven is provided.
Abstract: An electromagnetic oven is provided with a control system comprising a ferrite sensor located within the oven, a magnetic property detector coupled to the sensor, and control means responsive to signals from the detector. The sensor is positioned on a tray together with the items to be heated and this assembly is preferably cooled to a uniform low temperature before the tray is placed in the oven. The sensor is thus subjected to the same thermal environment as the items on the tray so that when the tray is placed in the oven the time required for the sensor to reach its Curie point and shut off the oven is dependent upon the thermal "history" of the items on the tray.
Abstract: A process for producing electromagnetic silicon steel having a cube-on-edge orientation. The process includes the steps of: preparing a melt of silicon steel, casting a strip of said steel, hot rolling, cold rolling, decarburizing, and final texture annealing. The cast strip has a thickness of from 0.15 to 1.0 inch.
Abstract: A process for producing electromagnetic silicon steel having a cube-on-edge orientation and a permeability of at least 1870 (G/Oe) at 10 oersteds. The process includes the steps of: preparing a melt of silicon steel containing from 0.02 to 0.06% carbon, from 0.0006 to 0.0080% boron, up to 0.0100% nitrogen, no more than 0.008% aluminum and from 2.5 to 4.0% silicon; casting said steel; hot rolling said steel; cold rolling said steel to a thickness no greater than 0.020 inch; recrystallizing the cold rolled steel at a temperature between 1300.degree. and 1550.degree. F in a hydrogen-bearing atmosphere having a dew point of from +50.degree. to +150.degree. F; decarburizing said steel to a carbon level below 0.005%; applying a refractory oxide base coating to said steel; and final texture annealing said steel. The steel is heated to said temperature range of between 1300.degree. and 1550.degree. F at a heating rate of at least 1500.degree.
Abstract: A process for producing a phosphorus-bearing soft magnetic material. The process includes the steps of: blending iron powder and ferro-phosphorus powder into a mixture containing from 0.4 to 1.25% phosphorus; pressing said blended mixture into a compact; and sintering said compact in a non-oxidizing atmosphere. The iron and ferro-phosphorus powder respectively have no more than 0.02 and 0.2% calcium. The ferro-phosphorus powder has from 12 to 30% phosphorus.
Abstract: There is disclosed a process for producing elongated metal articles by atomizing molten metal in an inert atmosphere and cooling the particles to remove at least some heat of fusion, but not below 40% of the solidus temperature on the centrigrade scale, while they fall onto a bed of particles on a moving support. The particles are then consolidated by means such as passing the bed through rolls to form an elongated metal article.
Abstract: A method and related apparatus for separating carbon dioxide snow from a mixture of carbon dioxide snow and vapor is disclosed. A mixture of carbon dioxide snow and vapor is introduced into a rectangular conduit which has an inlet end, an outlet end, a discharge orifice and continuously increasing cross-section from said inlet end to said discharge orifice. At least a portion of the conduit between the inlet end and the discharge orifice is curved to define a flow path for the mixture such that carbon dioxide snow tends to be concentrated for flow in a concentrated stream through said path. Means for deflecting a portion of the mixture after it passes through said discharge orifice is also provided.
Abstract: Oxide dispersion-strengthened metal having from 18 to 35% chromium, 3 to 7% aluminum, 0.2 to 3.0% of an oxide dispersoid, 10 to 45% nickel and at least 30% cobalt. The oxide dispersoid has a negative free energy of formation at 1000.degree. C of at least as great as that of aluminum oxide.
Abstract: A container for drawing or ironing dies is particularly useful but is not limited to can making. It includes an outer ring having an inwardly extending flange at one end and a disc secured to its other end so as to provide a peripheral space for receiving at least three segments which are resiliently urged against a die ring. The radial length of the slot is greater than the radial length of the segments so that the die ring can be displaced from the normal axis of the die pack. Means co-axial with the normal axis of the die limit inward movement of the segments.
Abstract: A hot workable austenitic stainless steel of improved pitting and crevice corrosion resistance to the chloride ion. The steel consists essentialy of, by weight, from 18 to 20% chromium, 11 to 14% nickel, 3 to 4% molybdenum, up to 2% manganese, up to 0.01% sulfur, up to 0.1% of at least one element from the group consisting of cerium, calcium and magnesium, nitrogen from 0.1% up to its solubility limit, up to 0.08% carbon, up to 1% silicon, up to 1% columbium, up to 0.3% vanadium, up to 0.3% titanium, balance essentially iron.
Abstract: A novel rose variety of the miniature rose class characterized by high centered, heavy petalled, coral pink blooms substantially as shown and described.
Type:
Grant
Filed:
November 25, 1977
Date of Patent:
August 15, 1978
Assignee:
F. Harmon Saville Nor'East Miniature Roses
Abstract: A novel rose variety of the miniature rose class characterized by hybrid tea-like high centered blooms of orange-red to bronze-yellow coloring substantially as shown and described.
Type:
Grant
Filed:
November 25, 1977
Date of Patent:
August 15, 1978
Assignee:
F. Harmon Saville Nor'East Miniature Roses
Abstract: A novel rose variety of the miniature rose class characterized by unusual coloring contrasting scarlet red petals and dark yellow stamens which produce a yellow eye substantially as shown and described.
Type:
Grant
Filed:
November 25, 1977
Date of Patent:
August 15, 1978
Assignee:
F. Harmon Saville Nor'East Miniature Roses
Abstract: A novel rose variety of the miniature rose class characterized by high centered pink blooms, borne primarily one to a stem and with reflexing petals folding individually along the entire margin as they mature.
Type:
Grant
Filed:
November 25, 1977
Date of Patent:
August 15, 1978
Assignee:
F. Harmon Saville Nor'East Miniature Roses
Abstract: A novel rose variety of the hybrid tea class characterized by blooms of bright orange coloring and high centered form, as hereafter shown and described.
Abstract: An electromagnetic oven is provided with a control system comprising a sensor located within the oven, a detector coupled to the sensor, and control means responsive to signals from the detector. In one embodiment, the control means activate a counter which, upon a predetermined number of operations, signals a condition of the load within the oven and may modify subsequent energy inputs to the load.