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Patents Published on 04/28/1987


See All Patents Issued In 1987


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NumberTitleIssue Date
4660303Rear-access ski boot
This ski boot comprises an inner skipper fitted in a rigid outer shell and the skier's heel is caused to fit in the rear portion of the boot by a pressure plate disposed between the shell and the slipper, on the instep. The pressure exerted by this plate ...
04/28/1987
4660304Athletic shoe with improved pivot cleating
An athletic shoe for field sports having a circular cleat formed on the sole in forward position substantially encompassing the ball-of-the-foot and toe portions of the sole, extending substantially across the width of the sole, and enclosing a surface co...
04/28/1987
4660305Tap dance shoe including integral electromechanical energy conversion means
A tap for attachment to a tap dancing shoe is disclosed. The tap includes pickup means for converting the mechanical vibrational energy generated by the tap striking the floor into a substantially undistorted electrical signal suitable for remote processi...
04/28/1987
4660306Trencher attachment for hydraulic excavators
A trencher attachment for a hydraulic excavator of the truck mounted type enables the excavator to be effectively used in performing trenching functions relative to the construction and maintenance of various underground installations. The trencher attach...
04/28/1987
4660307Cover for film irons
A cover for a film iron used to iron on films on models such as model airplanes and the like. The cover is of natural fiber cloth to provide a controlled heat transfer and provides a relatively soft surface preventing marring of the film surface. The cove...
04/28/1987
4660308Tentering frame for sheet-like members
A tentering apparatus for tensioning a sheet-like member, for example, a membrane used in an electrolyzer. The apparatus includes four clamping assemblies arranged in a frame-shape configuration within an outer frame member, and a fastener, such as a thre...
04/28/1987
4660309Changeable character display device
A plurality of flexible strips are included in a changeable character display device. Each strip has a series of display portions that are longitudinally arranged on a strip. A guide panel of the device includes respective pairs of apertures arranged late...
04/28/1987
4660310Advertising copy display sign and stand combination
Disclosed herein is an advertising display sign and stand combination which comprises a double sided display sign having printed thereon advertising copy and changeable copy display area and a stand member removably attached to the double sided display si...
04/28/1987
4660311Handgun
A handgun such as a pistol or revolver, with a grip for handling the weapon, to be held by the hand using the gun, and with a second, additional grip connected to the weapon for the second hand supporting the weapon, wherein the second grip (13) is locate...
04/28/1987
4660312Rifled gun barrel having smooth bore section
A gun barrel having a rifled-bore section at the breech end thereof and a smooth-bore section at the muzzle end thereof, the sections having a gas tight connection therebetween, the rifled-bore section comprising a first generally tubular body having a lo...
04/28/1987
4660313Duck decoy deployer
A collapsible wire framework to which duck decoys are attachable comprising a central plate with a plurality of spaced connector rods pivotally attached thereto so as to spread radially at equal angles from the central plate, a plurality of slidable sprea...
04/28/1987
4660314Hook sneller and line cutter
A fish hook sneller and line cutter tool for forming a knot from a fishing line on a fish hook and cutting the fishing line is provided and consists of an elongated housing in a size approximating that of a pen/pencil having a sneller mechanism at one end...
04/28/1987
4660315Spear gun having air valve formed by inner and outer barrel
A spear gun preferably operated from the low pressure gas outlet of a diver's air tank. The gun includes a first barrel over which a second barrel is slidably mounted. A gas inlet is mounted on the second barrel which in turn is normally forwardly positio...
04/28/1987
4660316Light signalling fishing accessory
A light signalling fishing accessory device includes a casing containing one or more electrical batteries therein and an electrical lamp connected to the batteries by means of an interrupted electrical circuit. Completion of the circuit is accomplished by...
04/28/1987
4660317Apparatus for supporting and agitating a fishing rod
Apparatus supports fishing rod which extends from a housing secured to gunwale of a boat. The housing has an output shaft with a rod holder which carries the fishing rod. A motor within the housing rotates the output shaft through a variable control devic...
04/28/1987
4660318Angler's lure with keel
An angler's lure having a spinner-blade with fore and aft portions, and defining a fore-and-aft centerline; a keel depending from the aft portion of the spinner-blade; and, a hook anchored in the keel and extending upwardly and rearwardly, through a small...
04/28/1987
4660319Bedding device for an animal leg hold trap
A bedding device for use with an animal leg hold trap includes a platform providing support for the free jaw of the trap when the trap is in its set position. In one embodiment, the platform contains one or more integral channels for releasably retaining ...
04/28/1987
4660320Bait station for small rodents
A tamper proof, non-spilling bait station for small rodents is provided with a generally pentagonal shape suitable for placement in a 90° room corner. Two rodent entranceways located in two outer walls of the container provide rodent access to a single r...
04/28/1987
4660321Climate control in building structures
To improve heat economy in certain building structures, e.g. greenhouses and sports halls, a plastic film is applied which is held in place by evacuating the space between the structure and the plastic film. Periodic excess heat is accumulated in a heat s...
04/28/1987
4660322Revolving door
A revolving door has a plurality of leaves mounted for rotation about a common axis. To permit collapse of the door in an emergency, the leaves are mounted, at each end, by means of mechanisms that permit such collapse. There is provided a mechanism for m...
04/28/1987
4660323Hollow door sealing wedge
A durable, resilient, hollow sealing wedge extending all along the entire width of a door comprises a solid outer body portion including three outwardly extending projections and an empty interior. When squeezed into the space between the door edge and th...
04/28/1987
4660324Door opener
A door opener is secured to a door jamb on the hinge side. A radius arm extends from a vertical-axis shaft, and overlies the door. Force is transferred to the door by a roller mounted at the outer end of the arm on an axis parallel to the shaft....
04/28/1987
4660325Flexible window regulator assembly
This disclosure deals with a window regulator assembly as a unit such as for vehicles and specifically vehicle doors, which doors have rigid frames so that the assembly may be installed in any type or shape of door, and the three parts of this assembly th...
04/28/1987
4660326Apparatus for hydromechanical cleaning and polishing
An apparatus, consisting of a movable casing connected to a drive mechanism. A chamber is arranged in the movable casing and filled with working medium. The movable casing has a diaphragm connected with a mechanism for backward and forward movement. The m...
04/28/1987
4660327Glass plate grinding apparatus
A glass plate grinding apparatus has a press conveyor disposed on one side of a glass plate where a grinding wheel is disposed and a support conveyor disposed on the other side of the glass plate, the press conveyor being constituted by a caterpillar conv...
04/28/1987
4660328Rotatable holder for plural grinding spindles
A grinding spindle holder accommodates two or more grinding spindles and is mounted on, or adapted to be fitted to a feed slide of a grinding machine. The spindle holder has a stationary base part and a movable part which accommodates the grinding spindle...
04/28/1987
4660329Powered abrading tool
A portable abrading or polishing tool including a motor which drives orbitally a head carrying a working pad to which sandpaper or the like may be attached, with the motor of the device driving a carrier about a first axis, and with the carrier mounting t...
04/28/1987
4660330Bevel tool
Described is a novel "bevel tool" and associated technique for holding prescribed magnetic head workpieces and placing them in prescribed constant angular relation with a rotary lapping means; this tool preferably including a workpiece-receiving pocket ad...
04/28/1987
4660331Concrete-filled structural tube with cantilevers, particularly for balcony floors
A structural tube (10) with cantilevers (11) is provided with a plurality of openings (14) corresponding to the number of cantilevers. Each cantilever has at its fixing end an embedment means with at least one embedment arm (12A) extending into the respec...
04/28/1987
4660332Prefabricated folding structure
A prefabricated structure, illustratively a residential dwelling, having a prefabricated central core and a plurality of prefabricated floor, wall and roof members that pivotally fold inwardly about the central core to produce a compact folded structure w...
04/28/1987
4660333Gutter system
A gutter system is disclosed for waterproofing basements and the like by channeling seepage water around the perimeter of the basement to either drain or open pit which may contain a sump pump. The gutter system is provided in kit form which includes a pl...
04/28/1987
4660334Theta blast cell
An underground blast shelter for providing short and long term protection against nuclear detonations for its occupants. The shelter consists of a cell to house the occupants and a command station interfacing with the ground surface. The cell and command ...
04/28/1987
4660335Spiral staircase arrangement
A round or spiral staircase is formed from post pieces and treads with the treads each having a collar portion which cooperates with the post pieces to form a complete post. The collars are rotatable relative to the post portions to allow the treads to be...
04/28/1987
4660336Storage tank construction
This invention relates to an elevated liquid storage tank and a method of constructing same. An upright, hollow, cylindrical concrete shaft is constructed having a closed upper end portion forming a tank support floor. An upper, outer ledge is formed arou...
04/28/1987
4660337Grain storage unit and method of use thereof
Grain storage is provided by a unit having a aboveground retaining wall structure, a floor liner and a cover liner. The wall structure is preferably formed from an earthwork berm and typically has a generally rectangular shape having two parallel side wal...
04/28/1987
4660338Sealing element for components of buildings
A sealing element for use with components of buildings, such as wall and floor elements, doors or the like, comprises an at least partly enclosed barrier strip consisting of a material which is self-foamable under the action of heat, e.g., a sodium silica...
04/28/1987
4660339Wall system
A wall system includes a grid constructed of horizontal main support channels mounted on a fixed wall and a plurality of spaced vertical standards secured to the channels at the front thereof. Each channel has a U-shaped cross-section with rearwardly exte...
04/28/1987
4660340Grain silo
A grain silo comprises a wall body having an inner wall surface and a lining coated on the inner wall surface. The lining comprises at least one protective layer which includes hydrophilic urethane resin of one-can type....
04/28/1987
4660341Composite structure
An open web joist system and a composite concrete structure incorporating said open web joist system wherein the top chord comprises two spaced-apart angle bars held in spaced-apart relationship by bar stock of an open web member and a closure member for ...
04/28/1987
4660342Anchor for mortarless block wall system
An anchor for use in association with a mortarless block wall system for attaching facing to the outside of a wall. The wall includes a series of blocks placed in linear courses or rows with each block containing a pair of parallel sidewalls that are conn...
04/28/1987
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