Other

Flexwatt Corporation

Usm Corporation

Frederick G Grise

Walter C Lovell

Paul H Bodensiek

John A Marstiller

John A Martstiller

Paul A Cunningham

William C Stumphauzer

John S Kelley

Demetrius Maikantis

Ray E Heck

Kalman Prescott

Carlton D Adams

Wink Grise

Lawrence Morgan

A truck trailer or similar bulk storage area is heated by providing electrical resistance heaters in longitudinally-extending metal ducts extending from and to a short distance below the floor level. Electrical sheet resistance heaters are attached to the underside of the metal plate forming the duct top, each duct is placed between a longitudinally-extending pair of wooden floor boards, and a pair of ducts are placed side-by-side near each edge of the trailer bed or floor of the storage area.

Electrical heating

An electrical resistance device includes a conductive metal pattern carried on an insulating surface. A portion of the conductive metal pattern includes a two-dimensional array of areas devoid of conductive material ('voids') within a mesh of conductive material. Typically, the voids are hexagonal and are arranged such that the adjacent edges of adjacent hexagons are parallel to each other and spaced apart a distance not more than about 0.10 in. The hexagonal voids typically are arranged so that the centers of sets of three adjacent voids lie on the corners of equilateral triangles.

Electrical resistance device

An electrical heater, to be powered from an automotive-type cigarette lighter socket, includes a heating element, a plug configured to be inserted into the cigarette lighter socket, and a pair of conductors permanently connecting the heating element to the plug. The plug has a flat substrate and a pair of conductors mounted on the substrate. An electrical plug, for a lighter socket of the kind having an inner wall of a predetermined diameter and a pair of electrical contacts, includes a flat assembly having a flat dielectric base having a width corresponding to the predetermined diameter, and a pair of flat conductors attached to the base for touching the pair of electrical contacts in the socket.

Electrical heater and plug

An electrical heater, to be powered from an automotive-type cigarette lighter socket, includes a heating element, a plug configures to be inserted into the cigarette lighter socket, and a pair of conductors permanently connecting the heating element to the plug. The plug has a flat substrate and a pair of conductors mounted on the substrate. An electrical plug, for a lighter socket of the kind having an inner wall of a predetermined diameter and a pair of electrical contacts, includes a flat assembly having a flat dielectric base having a width corresponding to the predetermined diameter, and a pair of flat conductors attached to the base for touching the pair of electrical contacts in the socket.

An electrical heater including a semi-conductor pattern (e.g., colloidal graphite ink) printed on a substrate. A conductive ink (e.g., a silver ink) is deposited on the semi-conductor pattern. The conductive ink migrates into the semi-conductor material, provides a superior electrical contact between the conductor (e.g., the silver ink) and the underlying semi-conductor material (e.g., the semi-conductor graphite ink), and essentially eliminates interface resistance. In some embodiments, the semi-conductor pattern is printed on one side of a woven cloth substrate and the conductive ink is printed on the other side.

Electric resistance heater

Heating devices, in which a semi-conductor pattern is carried on an insulating surface and a pair of spaced apart electrodes are electrically connected to the semi-conductor pattern, are characterized in that the semi-conductor pattern in at least one heating area of the device defines a two-dimensional array of areas that are devoid of semi-conductor material ('voids') within a continuous 'mesh' of semi-conductive material. Preferably, the voids are hexagons arranged with the sides of adjacent hexagons parallel to each other, the centers of adjacent hexagons are at the corners of equilateral triangles, and the overall direction of current flow in the device is not parallel to any of the sides of the triangles.

Semi-conductive electrical heating device with voids

Process of making an electrical resistance device

Combined knife and fork

This invention discloses a fiber optic lens holder and lamp assembly for use in lighting systems used beneath carpets and other types of floor or wall coverings. The lens assembly includes a housing having a cavity for receiving the lamp, an optically transparent web portion adjacent to the lamp cavity, and an annular end portion for receiving a bundle of optical fibers. The optical fibers are fused together at one end, preferably in a point, and are secured in the housing at the other within the annular section. The lens and lamp assembly is installed, typically with a flat cable conductor assembly, on the floor prior to laying of the carpet. Holes are cut in the carpet corresponding with the locations for the fiber optic bundles. The fiber optic bundles are passed through these holes as the carpet is laid down. After the carpet is laid down, the fused end of each bundle is cut off, freeing the fiber ends from fusion with each other so that the fiber ends are flush with the surface of the carpet. Thus, the invention provides an unobtrusive and durable means for providing emergency or decorative floor illumination.

Fiber optic lens and lamp assembly and method for installing same under

An electrical heater including a semi-conductor pattern (e.g., colloidal graphite ink) printed on a substrate. A conductive ink (e.g., a silver ink) is dposited on the semi-conductor pattern. The conductive ink migrates into the semi-conductor material, provides a superior electrical contact between the conductor (e.g., the silver ink) and the underlying semi-conductor material (e.g., the semi-conductor graphite ink), and essentially eliminates interface resistance. In some embodiments, the semi-conductor pattern is printed on one side of a woven cloth substrate and the conductive ink is printed on the other side.

The heater includes a paper or plastic substrate on which is printed a semi-conductor pattern (typically a colloidal graphite ink) having (a) a pair of longitudinal stripes extending parallel to and spaced apart from each other and (b) a plurality of identical bars spaced apart from each other and extending between and electrically connected to the stripes. A metallic conductor (typically copper stripping) overlies each of the longitudinal stripes in face-to-face engagement therewith, and the conductors are held in tight engagement with the stripes by a sealing layer that overlies the metallic conductors and is sealed, at opposite sides of the semi-conductor stripe associated with the particular metallic conductor, to portions of the substrate that are free from the printed semi-conductor pattern.

Electrical resistance heater

A flat, multi-cable assembly is provided by laminating a multiplicity of flat tinned-copper strip conductors between a pair of organic plastic insulating sheets, both of which adhere tightly to each other but at least one of which is not adhered to the copper strip conductors. The copper strip conductors are typically parallel to and spaced-apart (not less than about 1/8 inch) from each other, and the distance between adjacent conductors is typically about equal to (or a major fraction of) the width of the conductors. One of the conductors includes a plurality of electrically isolated portions each of which is electrically connected to a respective one of the other conductors. The latter connections are provided by a plurality of conductor connecting patterns carried on one of the plastic insulating sheets (typically printed thereon using a conductive graphite, nickel or silver ink).

Multi-conductor cables

A heater including a substrate having semiconductor bus stripes along each edge of one face. The semiconductor stripes are connected by a plurality of identically oriented bars. The bars include a feeder segment at each end and a divided segment connecting the feeder segments. The feeder segments are spaced 1/4 inch apart. The divided segment is divided into equally spaced heating elements, each having a width equal to the width of the space between adjacent heating elements. The width of each heating element is 1/16 inch.

Electrical semiconductor resistance heater

A jar or bottle lid or cap remover or opener comprising only two conical members, i.e. a relatively hard outer pressure cone and an inner elastomeric insert, and a space between the two.

Jar opener

An electrical heating device comprises a substrate, a pair of parallel, spaced apart elongated conductors extending longitudinally of the substrate, and a semi-conductor pattern carried on the substrate and electrically connected to and extending between the conductors. The semi-conductor pattern produces a thermal image for an infrared target. In some embodiments, the thermal image is irregular or circular in shape and the semi-conductor pattern includes a plurality of transversely-spaced bars having relatively wide portions outside, and relatively thin portions within, the area producing the thermal image.

Growing community of inventors

Osterville, MA, United States of America

Frederick G Grise