...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 5533232 | Hand lever assembly A hand lever assembly including a plastic handle body molded around a metal insert for rotation of a rotary member such as an axle, spindle, or the like. The upper surface of the insert has a high point and a low point. The upper surface is further dived ... | 07/09/1996 |
| 5524353 | Siding leveling device A leveling device for extending a course of siding around an interior or exterior building corner includes a center link and two elongate planar arms pivotedly attached to the link. The arms are provided with alignment edges for fitting under edges of sid... | 06/11/1996 |
| 5522494 | Reciprocating slat conveyor A reciprocating slat conveyor for loading and unloading a bulk cargo from a stationary or movable receptacle includes a plurality of elongate slats arranged side-by-side along the bottom of the receptacle and grouped into three slat sets each set movable ... | 06/04/1996 |
| 5469978 | Condition indicating system for railway car cushioning unit A system for indicating whether a hydraulic--pneumatic cushioning unit mounted on a railway car to cushion impacts contains sufficient hydraulic fluid to cushion impacts includes a signal assembly mounted on the body of the cushioning device, the signal a... | 11/28/1995 |
| 5470238 | Shielded ribbon cable electrical connector assembly and method A shielded ribbon cable electrical connector assembly includes a shielded cable connector with an overmolded body mounted on the end of the shielded cable and a shielded pin header adapted to be mounted on a circuit board and to mate with the connector. T... | 11/28/1995 |
| 5463835 | Molding assembly A molding assembly including an elongate crown molding member having a trim mounting groove on the outer surface extending along the bottom of the member opposite a mounting surface on the inner surface, and a trim molding member mounted on the crown mold... | 11/07/1995 |
| 5462356 | Bone and dental cement method and preform A bone or dental cement mixing method and preform body are disclosed. An elongate rod is inserted into a cement mixing chamber. Cement powder is poured into the mixing chamber and around the rod to form a preform body in the chamber. The rod is moved late... | 10/31/1995 |
| 5413089 | Wood and coal burning stove A solid fuel burning stove includes a firebox having front side and rear walls, a top and a bottom, and a secondary combustion unit formed from high temperature insulative refractive material mounted on the top and rear wall of the firebox. The unit is co... | 05/09/1995 |
| 5411420 | Solder terminal strip A solder terminal strip stamp formed from thin metal stock includes a carrier strip, a plurality of solder terminals extending to one side of the carrier strip and reverse bend the contact arms on the ends of the terminals away from the strip. A thin sold... | 05/02/1995 |
| 5402878 | Reciprocating slat conveyor A reciprocating slat conveyor for loading and unloading a bulk cargo from a stationary or movable receptacle includes a plurality of elongate slats arranged side-by-side along the bottom of the receptacle and grouped into three slat sets each set movable ... | 04/04/1995 |
| 5395167 | Manual bone cement mixing system A system for mixing bone cement is disclosed. Dry PMMA powder and MMA liquid are mixed in a vacuum chamber by a rotary mixer having a pair of spaced mixing arms. The rotary mixer is manually rotated by a gear drive. The arms of the rotary mixer follow con... | 03/07/1995 |
| 5386675 | Concrete beam connection sleeve A concrete beam connector sleeve has a tubular plastic body with a large dimensional end portion, a funnel portion joining the end portion, a rod guide portion joining the funnel portion, a bolting step joining the rod guide portion and a large dimension ... | 02/07/1995 |
| 5372714 | Storm sewer catch basin and filter The invention relates to a removable filter for buried catch basins. The filter includes a bag located below grade level in the catch basin and looped flaps which extend above grade level and aid in removal of the filter from the catch basin. The filter i... | 12/13/1994 |
| 5368386 | Manual bone cement mixing device A device for mixing bone cement is disclosed. Dry PMMA powder and MMA liquid are mixed in a vacuum chamber by a rotary mixer having a pair of spaced mixing arms. The rotary mixer is manually rotated by a gear drive. The arms of the rotary mixer follow con... | 11/29/1994 |
| 5363728 | Two roll web cutter and method A web cutter includes a knife roll located above an anvil roll, a web infeed conveyor for moving a continuous web to be severed to the nip between the rolls and a segment discharge conveyor for removing segments cut from the web. The roll includes a plura... | 11/15/1994 |
| 5351562 | Hydraulic--pneumatic cushioning device with pressure indicator A hydraulic-pneumatic cushioning device including a pressure indicator mounted on the device or remote from the device and connected to the pressure chamber within the cushioning device. The indicator includes a recess and a small pin extending into the r... | 10/04/1994 |
| 5348391 | Manual bone cement mixing method A method for mixing bone cement by mixing PMMA powder and MMA liquid in a vacuum chamber using a rotary mixer having a pair of spaced mixing arms. The rotary mixer is manually rotated by a gear drive. The arms of the rotary mixer follow continuous paths, ... | 09/20/1994 |
| 5344091 | Apparatus for winding stiffened coreless rolls and method An apparatus and method for winding stiffened coreless rolls which include a spiral wound roll formed from this product paper, conventionally paper having a printed pattern or design on one side, and a spiral stiffener sheet extending completely around th... | 09/06/1994 |
| 5336700 | Dental and orthopedic cement methods and preforms A method of making a rigid body from an acrylic cement powder by first compacting the powder so that adjacent particles are cohesively bonded together and a network of passages extend between the particles and then flowing a solvent vapor through the inte... | 08/09/1994 |
| 5333375 | Substrate lead strip mounting machine and method An apparatus and method for simultaneously mounting lead strip segments onto each side of a rectangular ceramic substrate. Four lead strip mounting assemblies are equally spaced 90 degrees apart around a central vertically oriented substrate support so th... | 08/02/1994 |
| 5332264 | Book pull tab with retractable gripping member The base of a pull tab is adhesively attached to the spine of a book. The tab includes a U-shaped grip connected to the base by a pair of hinges and is rotated between an extended position located within the base and a pull position extending outwardly fr... | 07/26/1994 |
| 5328323 | Stack making machine A stack making machine includes an infeed conveyor for moving successive web segments to an orbital stacker which pushes the segments down from the infeed conveyor and onto one of two pairs of stack support members located to either side of the infeed con... | 07/12/1994 |
| 5323680 | Device and method for automatically tuning a stringed musical instrument A device and method for very rapidly and accurately tuning each string of a guitar by contacting the string perpendicularly in order to change the tension in the string. The device is located at a position between the bridge of the guitar and the end of t... | 06/28/1994 |
| 5317759 | Surgical glove A barrier surgical glove for protecting surgeons and health care workers from bacterial or viral infections, such as hepatitis B and autoimmune deficiency syndrome (AIDS). The glove includes an inner layer, an outer layer overlying the inner layer and a p... | 06/07/1994 |
| 5316134 | Conveyor guidetrack segment A modular conveyor includes a frame made up of a number of series-oriented guidetrack segments and a conveyor belt is mounted on the frame including an upper article-carrying run on the top of the frame and a lower return run located within the frame. The... | 05/31/1994 |
| 5292245 | Plastic hand held candle holder A plastic hand held candle holder having an integral body made from polypropylene which includes a tubular handle having a closed end, an open end and a cup extending upwardly from the open end of the handle. A plurality of elongate ridges extend longitud... | 03/08/1994 |
| 5272987 | Lock for railway hopper car unloading gate The invention is a resilient lock for a gear drive railway car hopper gate. The lock prevents undesired opening of the gate and spilling of the contents of a railway hopper car. A resilient locking member is located between teeth of one gear and engages t... | 12/28/1993 |
| 5263883 | Miniature disconnect terminal A miniature disconnect terminal stamp-formed from thin sheet metal stock includes a mounting plate, a bridge, terminal tails extending to either side of the plate and bridge and a pair of hook-shaped spring members extending to one side of the bridge. The... | 11/23/1993 |
| 5259442 | Method of adding alloying materials and metallurgical additives to ingots and composite ingot Metal ingots are mold cast at a smelter with a solid, unmelted alloy or metallurgical additive body placed in the mold so that the molten metal in the ingot solidifies around the body. The metal and body in the ingot are melted at a foundry to freshly dis... | 11/09/1993 |
| 5255493 | Package assembly machine and method A package assembly machine and method for continuously placing articles in open hollow containers to form packages. A transport unit mounted on an endless conveyor moves an article from a pick up station to a package assembly station where the article is ... | 10/26/1993 |
| 5256365 | In-molding labeling method A method of labeling mold cavities in a blow-molding machine using an in-mold labeling system including first and second label magazines, first and second rotary members each having a label transfer unit with a suction cup, and using the steps of rotating... | 10/26/1993 |
| 5253415 | Method of making an integrated circuit substrate lead assembly A lead assembly and method for forming electrical connections between pads on an integrated circuit chip and pads on a circuit board includes small diameter wires adhesively bonded to a supporting tape. The wires may be inwardly fanned to form connections... | 10/19/1993 |
| 5245806 | Concrete beam conduit guide A concrete beam conduit guide includes a hollow open ended prismatic body with a downwardly sloping roof, an upward sloping floor, sidewalls and seal flanges at the open ends of the body.... | 09/21/1993 |
| 5236971 | Dental and orthopedic cement method and preforms Dental and orthopedic acrylic cements are mixed by forming cement powder into a body in which adjacent particles are bonded to each other while defining a continuous open network of passages extended throughout the body and then brining the body in contac... | 08/17/1993 |
| 5219897 | Dental and orthopedic cement method and preforms Dental and orthopedic acrylic cements are mixed by forming cement powder into a body in which adjacent particles are bonded to each other while defining a continuous open network of passages extending throughout the body and then bringing the body in cont... | 06/15/1993 |
| 5213533 | Electrical connector block assembly An electrical connector assembly includes a pair of elongate connector blocks with a plurality of terminals in each block, latch members on the ends of one block and a latch assembly on the ends of other block. The latch assemblies include rotary latches ... | 05/25/1993 |
| 5193322 | Molding assembly A molding assembly including an elongate base molding, a trim recess extending along the length of the base molding, a trim molding fitted within the recess and retention inserts in the base molding holding the trim molding in place.... | 03/16/1993 |
| 5188249 | Plastic bottle having a linerless closure with collapsible flange and method An integral blow molded bottle having a neck, a thread surrounding the neck and a collar at the top of the neck. A circumferential flange is provided on the outside of the top of the collar and a support column is provided on the inside of the collar for ... | 02/23/1993 |
| 5176240 | Indexing machine with roller cam drive An indexing machine includes a continuous chain having a run extending between a pair of movable sprocket gears. Work carriers are provided at spaced intervals along the chain and a plurality of fixed work stations are located at equal intervals along the... | 01/05/1993 |
| 5176036 | Parallel shaft drive and indexing machine A parallel shaft drive controls rotational and translational movement of a driven hub. The drive is useful in indexing and other types of machines.... | 01/05/1993 |