Boots – shoes – and leggings
Patent
1982-06-07
1985-07-09
Wise, Edward J.
Boots, shoes, and leggings
73 613, 374 27, B01D 342
Patent
active
045286353
ABSTRACT:
A microprocessor controlled distillation analyzer for petroleum products performs, computes, displays and records distillation data. An interactive/keyboard display and printer system reports and records test conditions and prompts user inputs to define test parameters. Before the initial boiling point, the heater is automatically controlled in two time intervals. Following the initial boiling point, the heater is controlled to keep the monitored distillation rate within a predetermined range. Upon attaining an automatically calculated volume of distillate, the final heat is incremented to a programmed level. In one mode, the end point is automatically detected by monitoring vapor temperature for a decline, followed by the cessation of meniscus movement to terminate the test. After measuring the residue, the analyzer automatically recomputes temperatures at a series of percentage volumes of evaporated sample. An IR beam meniscus detector is driven by a stepping motor screw-drive mechanism actuated via the microcomputer to find the initial meniscus position and track the rising meniscus. The vapor temperature sensor emergent stem error is compensated for by a platinum resistive element with opposite nonlinearity. Thermometer-like temperature lag is created by software.
REFERENCES:
patent: 3239432 (1966-03-01), Rhodes et al.
patent: 3364731 (1968-01-01), Hook
patent: 3732723 (1973-05-01), Goolsby et al.
patent: 4250739 (1981-02-01), Audeh et al.
patent: 4348259 (1982-09-01), Jensen
patent: 4417311 (1983-11-01), Ryan
Brochure entitled "Standard Method of Distillation of Petroleum Products", ASTM D 86-78, 19 pages, Oct. 1978.
Product brochure entitled "Precision", including cover showing ADA II and pp. 11-15 relating thereto, GCA/Precision Scientific Group, 1978.
Instruction Manual entitled "Automatic Distillation Apparatus II", Item No. TS-7007-AN-1, pp. 1-65 and Appendices A-X.
ADA II Drawings Nos. W534673 & 534674, (4 sheets); X534886; X534888; X534890; 535947, (2 sheets); D537243; 538611; and 539057.
Juodikis Peter
Martinich Steven J.
GCA Corporation
Pahl Jr. Henry D.
Wise Edward J.
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