Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 4694505 | Upper body protector for off-road riders An upper body protector is provided primarily for use by off-road racers and is comprised of a substantially rigid louvered polypropylene exoskeleton with a padded lining. Rather than comprising in essence a front and rear body shield held together by sho... | 09/22/1987 |
| 4694506 | Foldable eyeshade The eyeshade includes a headband and a visor of flexible sheet material, such as cardboard, each having aligned, centrally disposed fold lines. The visor additionally has two pairs of acutely angled fold lines that are laterally spaced from the centrally ... | 09/22/1987 |
| 4694507 | Welder's hood having a chin operated window closure A mechanism for opening and closing a window closure member (12) in a welder's helmut (10) by movement of the welder's chin. The helmet is provided with a chin engaging member (18), (20) which is attached to one end of an arm (24) by a rod (26). The arm (... | 09/22/1987 |
| 4694508 | Fingertip protectors for work gloves A fingertip protector for use with a work glove including a cap adapted to be detachably fitted on a fingertip of a user covering and protecting the fingertip, and a cushion member of a desired thickness secured to both the inner and the outer surfaces of... | 09/22/1987 |
| 4694509 | Non-pucker necktie In a preferred embodiment, a necktie and method of making, inclusive of outer ornamental material and a wool or wool-containing lining, the outer ornamental material and the wool lining being pieces cut on the same pattern tied-together adjacent their edg... | 09/22/1987 |
| 4694510 | Bib with teething surface A cloth bib having teething means on the bottom of the bib to enable a child to pick it up and bite on it.... | 09/22/1987 |
| 4694511 | Combination garment and protective seat cover Disclosed is a versatile article of manufacture for use by persons engaged in recreational activities such as those associated with the beach. The article, typically made of fabric, has a tubular upper half attached to a depending panel equipped with ties... | 09/22/1987 |
| 4694512 | Plumbing mixing circuit control apparatus for a combination set In order to achieve a fully automatic, electronic adjustment by means of a process for controlling a plumbing combination set with a multi-disc mixing valve for hot and cold water, whereby temperature is adjusted by making a comparison between the actual ... | 09/22/1987 |
| 4694513 | Drain A drain for a tile-covered concrete floor over a plywood form base. The drain has an annular internally screw-threaded base member with a bottom flange that can be nailed or screwed to the form base, an annular body member threadedly received in the base ... | 09/22/1987 |
| 4694514 | Convertible sofa mechanism A three-section convertible sofa mechanism installed in a convertible sofa. The convertible sofa has a pair of curved channels in which the head section of the sofa rides. As the mechanism is pulled outwardly from the sofa frame, the head section is guide... | 09/22/1987 |
| 4694515 | Self-inflatable air mattress in a foldable support An air mattress comprising an inflatable and deflatable flexible body enclosing an air chamber having a resilient means urging the opposite upper and lower walls of the body apart while being yieldable to permit the body to be folded and deflated. In one ... | 09/22/1987 |
| 4694516 | Playpen sun cover Disclosed herein is a playpen sun cover designed to fit over an existing playpen and have adjustability both to accommodate to different sized playpens and also to enable the adjustment of the angle of pitch of the sides of the roof thereof. The device in... | 09/22/1987 |
| 4694517 | Universal couch An improved universal couch characterized by comprising two sets of bed-frame, three sets of base-frame, two positioning rods and supporting rods, two connecting frames and couch-surfaces, wherein three sets of base-frame consist of two separated elements... | 09/22/1987 |
| 4694518 | Cabinet having a retractable bed A cabinet having a retractable bed formed from the two major components of a bed frame and a cabinet having a chamber therein for pivotally receiving the bed frame. The structure for pivotally mounting the bed frame is a pair of coiled torsion springs. Th... | 09/22/1987 |
| 4694519 | Corner bracket A corner bracket for a spring mattress support into which the ends of two angle irons are set at a right angle, and parts of the bracket are bent and crimped over onto the angle irons to secure these parts together with no actual fasteners.... | 09/22/1987 |
| 4694520 | Patient support apparatus An improved patient support system including a fluid inflatable support for receiving a patient thereon; a fluid supply source in communication with said fluid support, a detector associated with said fluid support means for monitoring the degree of infla... | 09/22/1987 |
| 4694521 | Human body supporting device A device for supporting a human body includes a mat having an upper layer of porous elastic material with fine particles mixed therein and a lower layer of porous elastic material. Air is blown through the mat from the lower layer, through the upper layer... | 09/22/1987 |
| 4694522 | Transfer bridge A transfer bridge for bridging across railroad tracks. The transfer bridge includes a bridge plate that can be pivoted from a vertical rest position into a horizontal operative position, in which the free end of the bridge plate rests upon a platform next... | 09/22/1987 |
| 4694523 | Tire scrubbing machine for automatic car washers A machine for scrubbing the sidewalls of tires on motor vehicles in automatic car washing facilities has a swing frame presenting a track for a carriage on which is mounted a pickup roller to be engaged by the tread face of a tire, a rotary scrub brush ar... | 09/22/1987 |
| 4694524 | Clamping head for replaceable string mop A replaceable string mop element is clamped between the mating toothed jaws of a selectively openable clamp which when clamped to the mop may be inserted into a longitudinal T-slot socket in a base fixed to the mop handle and selectively locked therein by... | 09/22/1987 |
| 4694525 | Hairbrush In a hairbrush having a base portion for implantation of bristles and a grip portion, bristles are implanted to extend from a center axis in the radial direction viewed in a cross-sectional plane of said implantation portion, in such a fashion that the cu... | 09/22/1987 |
| 4694526 | Apparatus for heat treatment of a textile web An apparatus for the treatment of a textile web supported on a tenter by contact with a heated treatment medium is disclosed. The apparatus includes a nozzle box or boxes having openings directed toward a fabric web to be treated. A by-pass opening is pro... | 09/22/1987 |
| 4694527 | Mask washing apparatus for production of integrated circuit This invention relates to a mask (reticle) washing apparatus for use in the production of semiconductor integrated circuits (IC), and in particular, to cleaning a mask without the use of a strong oxidizing agent or a strong alkaline agent. The mask washin... | 09/22/1987 |
| 4694528 | Convertible vacuum-blower A convertible vacuum-blower which includes a housing having an air inlet and an air outlet is disclosed. A motor and an impeller are supported in the housing. The impeller is supported for rotary motion and is driven by the motor. The impeller is in fluid... | 09/22/1987 |
| 4694529 | Suction device An extension device for vacuum cleaner specifically directed to dust removal from under household appliances and pieces of furniture having a small ground clearance. The device includes a main hollow blade portion and a socket portion for connection to th... | 09/22/1987 |
| 4694530 | Device for controlling opening and closing of movable objects, in particular doors and drawers in motor vehicles, having mutually cooperating stator and rotor The device comprises a rotor having a central pin a plurality of concentrically arranged cylinders and a sprocket wheel, adapted for mesh engagement with a rack fixed to the sidewall of a drawer compartment. The device also comprises a stator adapted for ... | 09/22/1987 |
| 4694531 | Suspended overhead hollow track support system A coupler for structurally joining opposing ends of overhead support rails is disclosed herein having a pair of elongated splice plates carried on opposite sides of the rail ends so as to overlap the abutment of the ends. Each splice plate of the pair is ... | 09/22/1987 |
| 4694532 | Rod support system having end brackets and auxiliary support brackets The present invention relates to an improvement in the supports for draperies, curtains, and the like, and more particularly, to improvments in the supports for coverings of bay windows wherein multiple treatments of the bay window can be achievewd by a c... | 09/22/1987 |
| 4694533 | Hinge and sectional panels on a frame enabling assembly and disassembly thereof The hinge enabling articulation of sectional panels (30) on a frame (10) consisting of a lip (11) forming swivel pin, integral with the frame, and at least one retaining member (20), such retaining member being fitted onto a projecting part (12) of the fr... | 09/22/1987 |
| 4694534 | Apparatus for electrically stunning poultry The present invention provides a saline solution containing elongated trough which is mounted at the end portions of four non-electronically conducting ports. The trough has an ingress funnel arrangement designed to control the thrashing of to-be-electric... | 09/22/1987 |
| 4694535 | Post stunner for poultry A vertically adjustable ladder contactor for a post stunner has two fluidic piston and cylinders for raising and lowering the ladder contactor. Four parallel support rods suspended from the conveyor track are formed of an electrical insulator to prevent s... | 09/22/1987 |
| 4694536 | Compound pump mechanism for meat encasing machines and the like A compound pump mechanism is provided adjacent the inlet ends of concentrically positioned inner and outer stuffing horns or tubes of a meat encasing machine. The first pump mechanism is in communication with a source of conventional meat emulsion, and is... | 09/22/1987 |
| 4694537 | Process and device for the fixture of suspension elements to sausages The process and device for the fixture of suspension elements, particularly suspensions loops, to sausages by means of sealing components, e.g. clamps. The sausage sheath is be restricted by a binding tool (12) which can be set to three positions. The bin... | 09/22/1987 |
| 4694538 | Feed apparatus for cards, carding engines, and the like In a chute feed apparatus for carding engines, cards and like machines, there is disclosed means for changing the widthwise configuration of sheet material being fed and exiting the apparatus by changing the deformation of a constituent wall of the delive... | 09/22/1987 |
| 4694539 | Method and device for exchanging empty cans with cans filled with sliver A method of exchanging empty cans with cans filled with sliver at a spinning machine having set locations for the cans wherein a mobile transport device is automatically driven along a floorlike travel path at the spinning machine includes placing empty c... | 09/22/1987 |
| 4694540 | Can coiler A can coiler with sliver inlet opening (1) on its head side, which opening is arranged in a rotating plate (11) and is flanked by calender rolls (16) the drive for which is derived from the rotary motion of the rotating plate (11) in the head of the can c... | 09/22/1987 |
| 4694541 | Elastic tie-down with rope adjustment means An elastic tie-down comprises as inelastic rope having enlargements thereon that are captured by an elastic sleeve. The elastic sleeve is shorter than the spacing between the rope enlargements. Pulling the rope ends causes the rope enlargements to bear ag... | 09/22/1987 |
| 4694542 | Foldable closure for flexible bags comprising flat sheet with integral axial hinge groove, lead in notch, and gripping aperture A flat bag closure (17) of the type having at its edge a V-notch (12) which communicates at its base with a bag neck gripping aperture (14). The closure is made of a non-frangible material so that it can fold along an axis (20) aligned with said notch and... | 09/22/1987 |
| 4694543 | Sheet gripping assembly A sheet gripping assembly for thin pliable sheet material, such as plastic film, having a channel shaped base member with a side opening through which may be inserted a fold of the sheet material to be secured, and innerlock and gripping bar members inser... | 09/22/1987 |
| 4694544 | Releasable connector A releasable connector having a male member with spaced prong ends and a tubular female member having an open end for receiving said prong ends and divided at said open end into legs by axially extending slots and a unitary locking means removably interpo... | 09/22/1987 |
