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Patents Published on 05/23/1989


See All Patents Issued In 1989


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NumberTitleIssue Date
4831664Garment for protecting against environmental contamination
A protective garment for protecting the wearer against adverse effects of chemical, biological and like environmental contamination including a body garment defined by a pair of legs, a pair of arms, a body and a hood with the latter including a transpare...
05/23/1989
4831665Protective face visor of a filament mesh
A protective face visor which prevents solid particles, such as wood or metal shavings, from passing through the visor and contacting the wearer's face. The visor is constructed of filaments of wire or plastic. The spacing between the filaments of the mes...
05/23/1989
4831666Garment especially adapted for protecting the knees while gardening
A garment or pant specifically adapted for providing protection to a person's knees in kneeling position while performing gardening or like chores, is disclosed. The garment has a pair of legs, and a pocket affixed to the exterior of each leg. A padded cu...
05/23/1989
4831667Glove and method for producing the same
A glove and method for manufacturing a glove which uses a plurality of panels designed and arranged to be seamed in-the-flat to each other....
05/23/1989
4831668Padding structure for use in protective headgear
The jaw pad is formed of resilient material having a uniform thickness and formed in a curved shape corresponding to the curvature of the earflaps of the headgear. Four female snap members are secured to its back face, capable of engaging the three male s...
05/23/1989
4831669Plunger splash guard for a toilet bowl
A splash guard for the open upper end of a toilet bowl to prevent water or similar liquid material from splashing out of the toilet bowl when unclogging the toilet by the use of a plunger, generally known as a "plumber's helper". The splash guard includes...
05/23/1989
4831670Automatic flushing apparatus for toilets
An apparatus for automatically flushing toilets includes an electric motor driven tripping mechanism, including a gear train with an arm for tripping the flush valve, and a control circuit having a first sub-circuit activated by weight on the toilet seat ...
05/23/1989
4831671Portable toilet cabana
A portable toilet cabana is formed of four, wide, relatively resilient sheet plastic walls whose adjacent vertical edges are connected together by narrow sheet plastic panels that are roughly a quarter of the width of the walls to form an octagon-like enc...
05/23/1989
4831672Floor-level adjusting device for a pool
An improved floor-level adjusting device for a pool is particularly designed to be incorporated in an existing pool at low cost without the destruction thereof. The floor-level adjusting device for a pool has a movable floor disposed in a pool for vertica...
05/23/1989
4831673Apparatus for holding articles to a bed
An apparatus for holding articles to a bed having a mattress, box spring and bed frame is provided and consists of a receptacle member formed to back of a channel shaped clamp member that can be attached to side of the bed frame. The receptacle member has...
05/23/1989
4831674Drilling and threading tool and method for drilling and threading
A combined drilling and threading tool comprises a shank having a conical front portion defined by hole-cutting edges, and spirally curved ribs disposed rearwardly of the edges. A row of thread-cutting teeth is disposed along the leading edge of each rib....
05/23/1989
4831675Orthotropic steel plate deck bridge with a double rib system
The orthotropic steel plate deck bridge with a double rib system, is a structural steel member with a steel plate deck welded to a closed steel rib which further is welded to an open steel rib. The double rib system has the capacity to transfer the loads ...
05/23/1989
4831676Dental prophylaxis device
A pair of absorbent core members, saturated with dental cleansing material, are enclosed in a spaced-apart disposition within a saturable covering layer having a roughened surface. The core members are flexible but capable of retaining their shape, said c...
05/23/1989
4831677Sponge mop
A mop of the "butterfly" type has a flat sponge releasably secured to the lower faces of a pair of base plates mounted for pivotal movement relative to the mop handle, a slide is telescopically sleeved on the handle, a yoke-shaped compression member is pi...
05/23/1989
4831678Cleaning tool
A cleaning tool with a bristle body has bristle sets on its underside. On its top side a handle is removably fixed. In order to attain a varied use of cleaning tool, less weight of the bristle body and a simple fastening of the handle, the bristle body ha...
05/23/1989
4831679Wiper arm assembly for motor vehicles
The invention relates to a wiper arm assembly for motor vehicles, comprising an oscillating mounting head (1), a rod (2) rigidly secured to the mounting head (1), a slidable element (3) pivotally (12) secured to a channel (4) and arm extension (7) and cap...
05/23/1989
4831680Windshield wiper having an auxiliary lever arm
A windshield wiper blade holder has an auxiliary lever arm having first and second free ends. Each one of the free ends presses against the back of a windshield wiper blade for increasing the force applied to the windshield wiper blade when the curvature ...
05/23/1989
4831681Sponge supporting device with guide rod springs
A device for supporting a sponge has a container filled with liquid, a sponge supporting plate in the container, and a resilient member urging the supporting plate with the sponge away from the liquid and depressable by a user into the liquid to moisten t...
05/23/1989
4831682Protective cover for floor treating machine
A protective cover for a vacuum cleaner or other floor treating machine to prevent marring furniture, base boards, and any other object or fixture likely to come in contact with the machine; the cover including a portion over the lateral and/or upper surf...
05/23/1989
4831683Vacuum cleaner
There is disclosed herein an upright vacuum cleaner comprising a main body having a suction opening, and a handle body pivotally attached to the main body. A lifting assembly for the main body comprises a pair of wheel assemblies pivotally attached to the...
05/23/1989
4831684Cleaning vehicles
A self-propelled sweeper vehicle (10) has front steerable wheels (16) mounted on a centrally pivoted axle assembly (28) which also carries the nozzle (30) and brush gear (24) whereby these assemblies are steered in unison with the vehicle. The nozzle fron...
05/23/1989
4831685Wet and dry vacuum cleaner
A filter, separator and seal arrangement is disclosed for a wet and dry hand held vacuum cleaner. A cup-shaped filter is provided which is elongated to provide a large area for enhancing sustained air performance of the cleaner with the filter being dispo...
05/23/1989
4831686Vacuum cleaning tool
A combined vacuum cleaning tool comprises two mutually movable parts, such as a flat surface nozzle (12) and a brush nozzle (10) which are alternatively adjustable between working and non-working positions, the flat surface nozzle being resiliently actuat...
05/23/1989
4831687Door closer with a concealed mounting
A door closer includes a plate-shaped mounting bracket and a closer body. The bracket is secured to a door. The closer body is secured detachably to the bracket by a particular tongue and groove engagement and a fastener. The closer body has an opening wh...
05/23/1989
4831688Door stop
A mechanism which prevents a door from closing by blocking the door hinge from closing....
05/23/1989
4831689Vertically slidably mounted brake for a resiliently supported caster wheel
A wheel fixing device for a wheel assembly of a baby carriage including: a hollow shaft element at the extream end of the shaft; a rotatable seat rotatable with respect to the wheel assembly being rotatably connected with a lower part of the hollow shaft element; t...
05/23/1989
4831690Carrying handle having L-shaped members each including a foot portion engageable with corrugated cardboard
A handle for attachment to a carton to facilitate carrying the carton. The elongated handle has the upper end of the leg portion of each of two L-shaped members connected to the same end of the handle so each foot portion of the members projects parallel ...
05/23/1989
4831691Compact carding apparatus with sliver thread-up and method
A compact carding apparatus is disclosed which includes a pair of upstanding carding cylinders (B) and (C) carried in a self-standing manner on a base frame (260). Cylinder (C) is carried generally atop cylinder (B) by mounting plates (272, 274) which all...
05/23/1989
4831692Hook for releasably attaching to at least one end
Hook adapted to be easily, quickly and securely attachable on both ends of an elastic cord which is used to tie objects up is disclosed; the present hook is structured to have two symmetric round ends, i.e., the right cord-fixing end and the left hook end...
05/23/1989
4831693Clamp for sheet material articles
The clamp comprises an inverted U-shaped base having spaced apart legs defining an entrance with a clamping element mounted on one leg of the base for displacement towards and away from a clamping surface on the other leg of the base for clamping a sheet ...
05/23/1989
4831694Buckle having external finger grip
A side-release type buckle is provided with a sliding member arrangement that enables the buckle to be easily released using only one hand, even if the engagement of the two parts of the buckle are being subjected to a strong pulling force in the directio...
05/23/1989
4831695Apparatus for the production of short warps especially for cloth designs in multicolor weaving
A winding drum particularly adapted for the production of short warps, such as cloth designs in multicolor weaving, which includes a winding drum having an exterior peripheral surface upon which thread is wound, the winding drum including an axis of rotat...
05/23/1989
4831696Component insertion machine apparatus
Apparatus for loading components into a component insertion machine. The apparatus comprises structure releasably mounted on component magazine loading apparatus to retain components in component magazines received by and aligned in the component magazine...
05/23/1989
4831697Method of making integrally foam-molded seats
In a method of making an integrally foam-molded seat by disposing a surface cover in a molding cavity of a mold used for molding a polyurethane foam and having a seat surface pattern embossed on its inner wall of the molding cavity, injecting a polyuretha...
05/23/1989
4831698Method of attaching a female element to a panel
A method of attaching a female element having an annular riveting portion to a panel and the installation apparatus. The method includes driving a punch through the female element into a panel supported on a die member forming an unsupported cone-shaped p...
05/23/1989
4831699Process for making curved walls starting with a flat prefabricated panel formed from three-dimensional metal screen with formed plastic filling
A flat prefabricated panel formed from a three-dimensional metal screen and from a reference layer of foamed plastic is converted into a curved panel suitable for the formation of a curved wall by cutting said screen along parallel lines on one face of th...
05/23/1989
4831700Method for making a fuel injector
The airblast fuel injector capable of accommodating high fuel temperature at the injector tip without deleterious fuel vaporization problems and resultant combustion instability in a gas turbine engine includes an annular spring valve mounted on an annula...
05/23/1989
4831701Method of making a corrosion resistant aluminum heat exchanger using a particulate flux
A method of treating a heat exchanger made of aluminum or an aluminum alloy comprising applying onto the surface of the aluminum heat exchanger a noncorrosive flux having a flux core with an outer coating of zinc or a zinc alloy formed by vacuum vapor dep...
05/23/1989
4831702Method for fixing boiler tubes during replacement of same
A method and apparatus for facilitating removal of spent tubes from boilers or heat exchangers in environments where access to one side of the wall through which the tube extends is limited. The apparatus includes a jaw assembly that is movable between a ...
05/23/1989
4831703Apparatus and method for plugging a tube
Both an apparatus and method for plugging a conduit, such as a tube in the tubesheet of a nuclear steam generator, is disclosed herein. The plugging apparatus generally comprises an inelastically expandable plug that contains a fluid-receiving cavity, and...
05/23/1989
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