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| Number | Title | Issue Date |
| 4395155 | Reflective highway marker A reflective highway marker mounted within an elongated groove formed in a highway pavement, the groove extending longitudinally of the highway and exposing the reflective highway marker to the headlights of oncoming motor vehicles when their approach dis... | 07/26/1983 |
| 4305423 | Combination stop and pressure reducing valve For purposes of the stop of flow of water and the reduction of excess pressure in potable or sanitary water supply pipe lines, a Combination Stop and Pressure Reducing valve having one bonnet only. This combination valve, of the same size as the conventio... | 12/15/1981 |
| 4304065 | Walking hand puppet A walking hand puppet in the figure of a walking or crawling land or sea animal, bird, insect or the like, comprising a body with finger-insertable appendages, and a non-functional glove on the body, said glove having a passage formed therein through whic... | 12/08/1981 |
| 4286497 | Ratchet-securable toggle retainer In combination with a conventional toggle fastener adapted for insertion into and to secure behind a blind entry, a ratchet assembly adapted to retain the toggle fastener in the blind entry and to adjust for the depth of such entry, the ratchet assembly c... | 09/01/1981 |
| 4284102 | Combination stop and pressure reducing valve For purposes of the stop of flow of water and the reduction of excess pressure in potable or sanitary water supply pipe lines, a Combination Stop and Pressure Reducing valve having one bonnet only. This combination valve, of the same size as the conventio... | 08/18/1981 |
| 4272851 | Hazardous environment suit In a protective garment for insulating a worker from a hazardous environment, a suit manufactured from weldable or bondable material having a double overlapping zipper construction and welded or bonded seams having a binding stitched to the outside of the... | 06/16/1981 |
| 4226045 | Stackable toy A stackable toy comprising a doll having a centrally disposed, vertically movable pin, said pin being recessed within the doll when in retracted position and extending upwardly from the doll when in projected position, a socket being formed within the dol... | 10/07/1980 |
| 4204466 | Plant for the automatic production of Arabic flat bread A plant for the automatic production of Arabic flat bread is provided. It consists basically of a sequence of devices or arrangements for performing the following functions: dough portioning, dough kneading and forming, prefermentation, dough rolling into... | 05/27/1980 |
| 4204559 | Line tap valve A line tap valve for tapping refrigerant lines of refrigeration and air conditioning systems, said line tap valve having a housing which is adapted to be clamped to a refrigeration line, said housing having two non-aligned but communicating valve bodies o... | 05/27/1980 |
| 4197735 | Blood sedimentation rate test means Means for conducting a blood sedimentation rate test in the primary blood collecting vessel. The invention provides a plunger for said primary blood collecting vessel, a calibrated measuring tube connected to said plunger, and pressure actuated, normally ... | 04/15/1980 |
| 4184786 | Earth dam protective covering Method and means for protecting earth dams from failure caused by overflow or internal (tunnel) erosion. The invention provides a barrier between the dam and the impounded water in the form of a water-impervious covering for the vulnerable surfaces of the... | 01/22/1980 |
| 4174376 | Process for manufacturing potassium polyphosphate A method for manufacturing potassium polyphosphate from ammonium bisulfate, sulfuric acid, phosphate rock and water, wherein the phosphate rock decomposition is passed through a gypsum filter, muriated potash and/or potassium sulfate is added to the basic... | 11/13/1979 |
| 4168836 | Internally illuminated spindle for record player turntables An internally illuminated spindle for record player turntables, said illuminated spindle being adapted to guide and facilitate placement of disc records on the turntables. Secondary internal illumination may also be provided in the spindle to illuminate t... | 09/25/1979 |
| 4159149 | Coal mining auger A coal-mining auger having (a) a hollow, tubular auger head with a spiral or helical coal conveyor mounted therein in concentric relation to the axis of rotation of said auger head, (b) a plurality of coal-cutting bits mounted on said auger head, said bit... | 06/26/1979 |
| 4157140 | Retractable automatic self-adjusting clamping means Retractable clamping means for clamping sheet laminates and other forms of work upon the work supporting surface of a table, said clamping means being retractable to inoperative storing position below said work supporting surface, and being movable to ope... | 06/05/1979 |
| 4134420 | Faucet valve for sinks, wash basins and other applications A faucet valve for kitchen sinks, bathroom washbasins and like applications, said faucet valve being adapted to be made of molded plastics, having relatively few operative parts, and designed to minimize the stresses of assembly and use. The invention has... | 01/16/1979 |
| 4129918 | Adjustable sleeve for artists paint brushes An adjustable sleeve for artists' paint brush adapted to adjust the effective length of the hair or bristles. The adjustable sleeve is tubular at its tip to contain the hair or bristles and which is split above the tip to provide a spring biased grip upon... | 12/19/1978 |
| 4114240 | Round back spring binder A round back spring binder having spring clamp elements formed with intersecting end portions which have to be spread apart in order to assemble the spring clamp elements into the binder, thereby pre-loading the back of the binder with an initial spring b... | 09/19/1978 |
| 4107815 | Tray having paint transfer roller for pad painters Paint applicator means for applying paint to a pad painter, comprising a conventional paint tray, a paint transfer roller, and mounting means for rotatably supporting the paint transfer roller on the conventional paint tray in partial immersion in the pai... | 08/22/1978 |
| 4069820 | Intubating pharyngeal airway A intubating pharyngeal airway having a side access for passage of a tube on the said airway comprising a flanged stop at the proximal end, a curved airway central tubular member and a distal ball tip adapted to fit into the vallecular. The side opening m... | 01/24/1978 |
| 4068658 | Intubating pharyngeal airway A intubating pharyngeal airway having a side access for passage of a tube on the said airway comprising a flanged stop at the proximal end, a curved airway central tubular member and distal ball tip adapted to fit into the vallecular. The side opening may... | 01/17/1978 |
| 4067331 | Intubating pharyngeal airway A intubating pharyngeal airway having a side access for passage of a tube on the said airway comprising a flanged stop at the proximal end, a curved airway central tubular member and a distal ball tip adapted to fit into the vallecular. The side opening m... | 01/10/1978 |
| 4054135 | Intubating pharyngeal airway A intubating pharyngeal airway having a side access for passage of a tube on the said airway comprising a flanged stop at the proximal end, a curved airway central tubular member and a distal ball tip adapted to fit into the vallecular. The side opening m... | 10/18/1977 |
| 4052925 | Expansion stud An expansion stud for use in a blind bore hole or the like formed in a concrete anchorage or like support, wherein an expansion sleeve is caused to expand radially in perpendicular relation to the longitudinal axis of the expansion stud and to the bore ho... | 10/11/1977 |
| 4050772 | Unitary socket terminal for electronic circuits A unitary socket terminal for electronic circuits, said socket terminal having lead ingress guide means and internal lead gripping means. The guide means provides unimpeded ingress to the lead gripping means. The socket terminal may also be provided with ... | 09/27/1977 |
| 4046929 | Attenuation spot filters manufacturing process An attenuation spot filter adapted to extend the light intensity range of usefulness of cameras, particularly television cameras, by attenuating the input light intensity in accordance with reduced iris aperture, comprising an optical element having at it... | 09/06/1977 |
| 4023522 | Attenuation spot filters and manufacturing process An attenuation spot filter adapted to extend the light intensity range of usefulness of cameras, particularly television cameras, by attenuating the input light intensity in accordance with reduced iris aperture, comprising an optical element having at it... | 05/17/1977 |
| 4018076 | Fin comb with interchangeable heads A fin comb for combing, straightening and cleaning fins of heat exchangers, such as fin-type condensers and evaporators used in refrigeration and air conditioning systems. The fin comb comprises a handle and a plurality of fin combing heads which are inte... | 04/19/1977 |
| 4017931 | Liquid filled insoles A hollow insole provided with non-communicating compartments which are filled with liquid to form individual foot-supporting cushions. Included in the invention is a method of making the insole.... | 04/19/1977 |
| 3981522 | Book holder A book holder for enclosing and holding books, said book holder having a pair of cover panels, a back panel hingedly connected between said cover panels, book holding means on the cover panels, and a transverse spring element mounted in and across said co... | 09/21/1976 |
| 3971929 | Safelight filter The invention comprises a darkroom safelight having (a) a light filter consisting of negative color film which has been exposed to a white light source (such as a generally continuous, uninterrupted light-reflective surface illuminated by white light) and... | 07/27/1976 |
| 3955528 | Industrial mop-treating machine A generally portable industrial mop treating machine which draws mop treating liquid directly from a shipping and storage container and sprays same upon mops which are driven through the machine. The spray means is actuated by the passing mops and becomes... | 05/11/1976 |
| 3949834 | Safety net and adjustable support therefor For use in conjunction with building construction, a safety net intended to be supported outwardly of the edges of the floors of the building, comprising a net fabric supported at its inner end by a bracket secured to the upper of two adjacent floors, and... | 04/13/1976 |
| 3947140 | Connector for telescoping tubular stick members A crutch construction for underarm and forearm crutches, wherein the handgrip is mounted, at least in part, forward of the longitudinal axis of the crutch, and the arm support is mounted, at least in part, rearward of said longitudinal axis. The arm suppo... | 03/30/1976 |
| 3946870 | Collapse-resistant paperbox packaging Collapse-resistant paperbox packaging for small articles, comprising an outer paperbox shell and an inner corrugated paperboard sleeve removably encased within said paperbox shell, said corrugated paperboard sleeve having a transparent plastic skin lamina... | 03/30/1976 |
| 3930507 | Adjustable oral airway An adjustable oral airway comprising a superior section and inferior section joined at their inner ends by a hinge member, and slidably secured relative to each other at the mouthpiece end, as by a tongue and groove slidable joint. The superior and inferi... | 01/06/1976 |