Edward M Nichols

US Patent:

46323040, Dec 30, 1986

Filed:

Feb 28, 1984

Appl. No.:

6/584398

Inventors:

Alfred T. Newell - Birmingham AL
Edward L. Nichols - Clearwater FL

Assignee:

A. T. Newell Co. Inc - Birmingham AL

International Classification:

F23N 520

US Classification:

236 46R

Abstract:

An electronic thermostat for controlling multiple temperature altering apparatus of an animal enclosure or the like employs a linear sensor comprised of an elongate black body, tubular probe containing a semiconductor active element of a current source which produces a sensor current that varies linearly with changes in temperature. A voltage divider to produce a plurality of temperature sensor signals which are used to produce primary of override actuation signals. The set temperature signal is selectable between two set point limits which are selectively variable to calibrate different scales. A plurality of detectors respectively compare the plurality of sensor signals with a common set temperature reference signal to produce a plurality of detection signals at a plurality of preselected temperatures associated therewith. The preselected temperatures at which a first heat control detection signal is produced is different from the preselected temperature of which the first cool control detection signal is produced, so that a dead zone between cycles is created. Primary detectors in both the cooling and heating stages cause actuation of associated cooling and heating apparatus, respectively, only if the detection signal is maintained for a preselected time period to prevent shortcycling.

US Patent:

41651480, Aug 21, 1979

Filed:

Jul 19, 1978

Appl. No.:

5/925737

Inventors:

Paul K. Campbell - Birmingham AL
Edward L. Nichols - Birmingham AL

Assignee:

Square D Company - Park Ridge IL

International Classification:

H01R 508

US Classification:

339276R

Abstract:

This disclosure depicts a ductile metallic electrical and mechanical connector for attachment to one or more electrical cables and formable by a compressible process. The connector comprises at least one bifurcated body member having first and second leg portions initially connected by a reduced cross-sectional thickness portion of the body member to provide a plastically flowable hinge connection. The first and second leg portions define an initial predetermined angle such that the body member can laterally engage an uninsulated section of an electrical cable. The first leg has on the end opposite the reduced thickness portion an axially extending rib member and axially extending inner and outer ridges disposed on either side of the rib member. The second leg has on the end opposite the reduced thickness portion axially extending inner and outer fingers. The rib member, the inner and outer ridges and the inner and outer fingers are oriented such that the outer finger lies between the outer ridge and the rib member and the inner finger lies between the inner ridge and the rib member, when the body member is closed about an uninsulated section of an electrical cable.

US Patent:

43508430, Sep 21, 1982

Filed:

Aug 31, 1978

Appl. No.:

5/938744

Inventors:

Paul K. Campbell - Birmingham AL
Edward L. Nichols - Birmingham AL

Assignee:

Square D Company - Palatine IL

International Classification:

H01R 508

US Classification:

174 94R

Abstract:

This disclosure depicts a novel method and system for crimping an elongated malleable metal connector onto two cables or the like and deforming the connector so that in its final crimped condition it is of generally a semi-cruciform/semi-circular shape in transverse cross-section with offset tap cable lodgment. The method comprises placing the connector between first and second opposed pairs of crimping dies, the first pair each having a nose portion for biting into a tap portion of the connector and one of said second pair also having a nose portion for biting into the tap portion of the connector and the other of the second pair has a nest die for crimping a main portion of the connector; moving the dies simultaneously toward one another for gripping the connector at four locations spaced around the connector; applying pressure to the dies to cause them to crimp the connector and effect deformation of the connector to the generally semi-cruciform/semi-circular shape with offset tap cable lodgment, each of the dies being substantially equidistant from its respective two adjacent dies throughout the simultaneous movement thereof; and relasing the dies when an increase in pressure of the dies on the connector reaches a predetermined value, independent of the extent of die movement, thereby terminating the crimping operation. Apparatus is disclosed for implementing the described method.