James McLean is issued a patent for a piano.
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| Number | Title | Issue Date |
| 5117961 | Conveying apparatus and article diverter An article diverter is oriented between two belt conveyors and has several pivoted carriages, each mounting two flat powererd diverter belts. A drive belt powers the diverter belts of each carriage from a common drive roller slaved to a power take off fro... | 06/02/1992 |
| 5054121 | Athletic pad A protective pad for body parts comprising an elongate protective outer plate of a substantially stiff but flexible material having a concave inner surface, and an inner ply of padding extending across the inner surface of the plate. A closed loop of stit... | 10/08/1991 |
| 4982828 | Sortation conveyor An improved lever arm for a tilt tray sortation conveyor has formula defined unlatching and tipping cam sections. The tipping cam section imparts a constant angular acceleration of about 20 radians/sec.2 to the tray during positive tipping. Suc... | 01/08/1991 |
| 4941699 | Uncaser finger An uncaser finger for bottle handling apparatus. The finger includes a pair of opposed jaws operable for opening and closing upon the neck or rim of a bottle. Each of the jaws includes a plurality of parallel ridges or lips extending from the planar surfa... | 07/17/1990 |
| 4908880 | Baseball glove or mitt A baseball glove, mitt, or the like having a thumb stall, a finger stall spaced from the thumb stall, and a web secured to and extending between the thumb and finger stalls, the web comprising two outer plies of a flexible material and an inner ply of a r... | 03/20/1990 |
| 4905688 | Portable light weight completely self-contained emergency single patient ventilator/resuscitator A portable light weight completely self-contained emergency single patient ventilator/resuscitating apparatus (10) usable at the scene of an emergency by persons with minimal training. The apparatus (10) includes a housing assembly (12) which supports a s... | 03/06/1990 |
| 4868925 | Football shoulder pads with accordian-hinge flap A shoulder pad for football players, the shoulder pad comprising a left-side member adapted to fit over the left shoulder and a right side member adapted to fit over the right shoulder. Each side member comprises a chest panel and a back panel, adapted to... | 09/26/1989 |
| 4869504 | Football and lacing for footballs A football comprising an outer shell having a central portion and tapered end portions, and a molded plastic lacing assembly extending along the central portion of the shell. The lacing assembly comprises an elongate fastener plate secured to the shell, a... | 09/26/1989 |
| 4853975 | Catcher's mitt A baseball catcher's mitt having front and back walls secured at the periphery of the mitt to form a mitt body. A back panel member is secured to the back wall of the mitt for substantially covering the back of the hand. The back panel member and body of ... | 08/08/1989 |
| 4850056 | Athletic pants A pair of athletic pants comprising a body portion including a waistband and a seat, and two legs depending from the body portion, wherein the seat comprises a plurality of panels shaped and assembled so that when a wearer of the pants assumes a crouched ... | 07/25/1989 |
| 4847915 | Baseball glove with a flexible heel construction The invention involves a baseball glove with a flexible heel construction. The glove comprises a front panel forming the front wall of the glove and a back panel forming the back wall of the glove, the front and back panels being secured together at perip... | 07/18/1989 |
| 4832926 | Chlorine gas filtering material suitable for use in a chemical oxygen generator and method of making A chlorine gas filtering material suitable for use in a high temperature oxygen environment, and a method of making the filtering material. The filtering material is prepared by impregnating a porous manganese dioxide and copper oxide hopcalite catalyst p... | 05/23/1989 |
| 4808803 | Security system A security system that grants access to authorized persons includes a central controller, insertion-type card readers, proximity-type card readers, and an interface module that interfaces between the central controller and the proximity-type readers in or... | 02/28/1989 |
| 4794943 | Fluid control valve assembly A valve assembly (10) for controlling high pressure gas with low controlling gas pressures. The assembly includes a valve housing (12) having a cavity (22), an inlet port (26) and two outlet ports (28, 30). Mounted within the housing in communication with... | 01/03/1989 |
| 4787925 | Gas filter canister housing assembly A gas filter canister housing assembly (20) capable of receiving gas filter canisters (28 or 40) of differing heights. The housing assembly includes first and second housing portions (54, 56) and holding apparatus (60) capable of holding the housing porti... | 11/29/1988 |
| 4761815 | Speech recognition system based on word state duration and/or weight A low cost, speaker independent, limited vocabulary, word recognizing microcomputer. The microcomputer divides each spoken word into a series of word states, determines the length of each state and classifies each state as fricative, vowel-like, or silent... | 08/02/1988 |
| 4746225 | Instrument assembly support An instrument assembly for use with a wire rack. The assembly is constructed so that the case structure may be rotated closer to or further away from the base portion of the stand. The assembly may be firmly secured to the wire rack by clamping one of the... | 05/24/1988 |
| 4744205 | Case packing head A case packing head for the packing of rectangular containers into cases. In a first embodiment of the invention, the containers are passed through arcuate paths on skid blades such that the containers fan apart above the top edges of the cross fingers of... | 05/17/1988 |
| 4720875 | Baseball glove with adjustable web and finger stalls A baseball or softball glove comprising front and back walls joined together to form thumb and finger stalls, a web between the thumb and the first finger stall, upper lacing interconnecting the thumb stall, web and finger stalls at their upper ends, and ... | 01/26/1988 |
| 4720959 | Continuous case packer A continuous case packer for receiving an ongoing stream of cases and containers and causing the containers to be deposited into the cases. The cases are fed on a conveyor assembly comprising an in-feed section, a staging section, and an out-feed section.... | 01/26/1988 |
| 4688608 | Filling valves for cans and like containers A filling valve mechanism for cans is presented. The valve includes a sleeve slidably mounted on a pair of pins and limited in downward motion by means of a stop. The sleeve carries an O-ring circumferentially thereabout for engaging within the throat of ... | 08/25/1987 |
| 4669496 | Liquid proportioner The present application discloses a liquid mixing method and apparatus which can mix two or more liquids in selected proportions. Each constituent fluid is introduced in a chamber provided with liquid level controlling devices that establish a liquid free... | 06/02/1987 |
| 4666094 | Ball winding apparatus A ball winding apparatus is described for winding string on a core to form the inner baseball including a ball spinning mechanism against which the core is held by a free spinning holding device where the spinning device imparts a wobble pushing the ball ... | 05/19/1987 |
| 4581597 | Electromagnetic actuator An electromagnetic actuator is presented wherein a pair of permanent magnets are sandwiched between respective pairs of pole pieces. The pole pieces communicate with an armature to effect the state of actuation of the actuator. A pair of electromagnets, c... | 04/08/1986 |
| 4558470 | Shock attenuation system A shock attenuation system useful in protective headgear is disclosed wherein shock is attenuated by the axial compression and lateral deflection of elastomeric columns. Cushioning material occupies the spaces between the columns.... | 12/17/1985 |
| 4544832 | Card reader with buffer for degraded mode There is disclosed herein an improved card reader for a security system utilizing a central controller and a plurality of card readers for controlling traffic through critical doors in a facility. The improved reader includes means for improving the syste... | 10/01/1985 |
| 4541524 | Case packer Case packer apparatus including endless driven conveyor, article gripper, and carrier bars for the article gripper which depend therefrom and where the conveyor has a downwardly extending reach connecting a pickup station to an article deposit station, th... | 09/17/1985 |
| 4538056 | Card reader for time and attendance There is disclosed herein an improved card reader for a security system utilizing a central controller and a plurality of card readers for controlling traffic through critical doors in a facility. The improved reader includes means for improving the syste... | 08/27/1985 |
| 4462590 | Inflatable padded game ball An inflatable padded game ball comprising an inner bladder assembly and an outer carcass enclosing the bladder assembly. The carcass comprises an outer cover of relatively tough durable material, padding on the inside of the cover, and a liner on the insi... | 07/31/1984 |
| 4445307 | Scaffold joint for a scaffold structure A scaffold joint for connectng the ends of horizontal scaffold members to vertical scaffold members. Spaced pairs of ring support members are fastened to the vertical scaffold members by welding or other suitable means. End connector assemblies are fasten... | 05/01/1984 |
| 4383617 | Vehicle outrigger support system An outrigger support system to provide lateral stability for vehicles such as fire engine ladder trucks employs extensible legs that are angled out sidewardly from the vehicle and movable downwardly into engagement with the ground. The legs are provided w... | 05/17/1983 |