William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 5528771 | Back support A back support to be worn by sufferers on their bodies comprises a patch of fur having a shape with a contour including an uppermost widest side, two lateral sides extending downwardly from the uppermost side and converging toward one another, and a small... | 06/25/1996 |
| 5528772 | Protective glove A protective device to protect the palm, index finger and thumb which may be worn inside a conventional baseball or softball glove is provided. The protective device comprises a padded catching panel and flexible back panel which are connected along their... | 06/25/1996 |
| 5528773 | Glove with writing on hook and loop A glove having a flap closure attachable to the glove body using hook and loop fastener material both on the flap and the glove body. A writing appears on the outside of the flap closure and a writing appears on or within the fastener material attached to... | 06/25/1996 |
| 5528774 | Earmuff assembly An earmuff assembly is adapted to be secured to a wearer's head in order to cover the wearer's ears. The earmuff assembly comprises a pair of earmuff elements, a band member and a joining means. Each of the earmuff elements has a pair of spaced-apart slee... | 06/25/1996 |
| 5528775 | Women's abdominal support garment A women's' abdominal support undergarment includes a waistband of horizontally elastic material with its ends joined to the side edges of a one piece control panel of horizontally elastic corset elastic different from the waistband material. The waistband... | 06/25/1996 |
| 5528776 | Portable pump operated washing basin The invention provides for a portable washing device which can be used to wash a person's hair. The device has a wash basin which is formed of two parts, and upper and a lower portion. The lower portion of the basin has a slanted inner liner which causes ... | 06/25/1996 |
| 5528777 | Sofa sleeper deck with transverse slats An improved sofa sleeper deck includes a number of pivotal transverse slats secured to a foldable frame. Each slat is pivotally coupled to a linkage so that the slats can pivot between vertical and horizontal orientations in the extended bed configuration... | 06/25/1996 |
| 5528778 | Seat-bed assembly The invention is directed to a seat-bed assembly movable between a seat position and a bed position, and including a seat support, a back support, and a frame having a horizontal support member. A plurality of links, including a first link and a second li... | 06/25/1996 |
| 5528779 | Air-cushioned sleeping bag An air-cushioned sleeping bag comprises a bottom portion and a cover member partially connected on their corresponding edges and partially fastened by zipper on their rest edges. The bottom portion comprises a plurality of the elongate air compartments pa... | 06/25/1996 |
| 5528780 | Mattress pad with frictional holding means A fitted mattress pad has a flat top portion with a skirt portion depending from its sides and edges. At least part of the skirt portion has frictional holding means for holding the mattress pad securely in place over a mattress. The frictional holding me... | 06/25/1996 |
| 5528781 | Dome type feather quilt In a cubic-quilt type feather quilt in which a plurality of compartments are defined by partitioning the interior of the quilt with partition cloths and feathers are filled inside, there is provided a feather quilt which functions to cover up the body, el... | 06/25/1996 |
| 5528782 | Support column for holding a patient support means A support column for holding a patient support means of an operating table has a foot portion (18) and a head portion (46), which head portion is adapted for connection with the patient support means and by means of an adjusting mechanism located inside o... | 06/25/1996 |
| 5528783 | Inflatable head and torso support A device for the positioning and support of the head or the head and torso of a person in a supine or reclined position. This device consists of a wedge shaped inflatable air bladder, a source of pressurized air, and air hose and valves for the controlled... | 06/25/1996 |
| 5528784 | Adjustable support pillow for comfortable repose An adjustable pillow that supports the head and neck of a user when laying on his/her side or in face downward position is described. This pillow has a central base portion and one or more lateral protrusions, particularly including upper lateral protrusi... | 06/25/1996 |
| 5528785 | Attachable couch-cushion confining device for infants A confining device couch converter which converts a seat cushion of a couch into a confining device for a resting baby. The confining device includes a sheet portion, which is flat, for covering a portion of the seat cushion where the baby rests. A wedge ... | 06/25/1996 |
| 5528786 | Toothbrushes A toothbrush comprising an elongated handle, a bristle support member articulately mounted on one end of the handle so as to be constrained, in use, into limited reciprocal movement with respect to the handle and in a direction of longitudinal axis of the... | 06/25/1996 |
| 5528787 | Apparatus for dry cleaning carpets A container for cleaning liquid solution for a carpet dry cleaning apparatus includes an outer wall having a cylindrical front portion and a flat back portion, an annular bottom wall at the bottom edge of the front portion of the outer wall, a top wall ex... | 06/25/1996 |
| 5528788 | Processing device for sheet-like media A processing device for processing sheet-like media via immersion in a special fluid, for example, for renewing a copy sheet by removing printed material such as toner therefrom. The processing device has a tank accommodating a fluid therein; a sheet feed... | 06/25/1996 |
| 5528789 | Robotic duct cleaning apparatus The cleaning apparatus has a body with two wheels on opposite sides of the body which are driven by two electric motors for moving the body forward or rearward or for turning the body. A cleaning device which uses pressurized air is supported by the body ... | 06/25/1996 |
| 5528790 | Pipe scraper assembly A pipe scraper assembly is forced through condenser pipe interiors for scraping residue off the inner wall surface. The scraper assembly is formed with a cylindrical body with a head and a tail end. Several mutually spaced apart rings are coaxially and ro... | 06/25/1996 |
| 5528791 | Wringer floor mop with pivoting head A wringer mop has a mop head housing, an elongated mop cartridge having an absorbent pad and a tubular mop handle. A pivot couples the mop head housing to the mop handle for pivotal movement therebetween. One or more pairs of spaced-apart wringer rollers ... | 06/25/1996 |
| 5528792 | Axially pivotable dual configuration shower brush A shower brush with a handle at one end and a group of bristles located upon one face at the other end has an axial pivot medial to two ninety degree bends taken with respect to the longitudinal axis of the shank. U-shaped and a S-shaped configurations ar... | 06/25/1996 |
| 5528793 | Multi-purpose squeegee with deflector A multipurpose squeegee intended for use in removing snow, slush, water and other liquids from automobile surfaces and various other surfaces. The squeegee comprises a downwardly open U-shaped base within which are secured two layers of polyethylene foam ... | 06/25/1996 |
| 5528794 | Utility vacuum cleaner tool caddy and wheel mount A utility vacuum cleaner tool caddy for utility vacuum cleaner drums as well as an axleless wheel mount are disclosed. The tool caddy has rear and front wheels with integral rear and front bumpers at least partially overlying the rear and front wheels. Th... | 06/25/1996 |
| 5528795 | Handle structure with a swingable curved grip element particularly for luggage containment means The handle includes a curved grip element having, at its opposite ends, elements for articulation to respective components for coupling to the bag. Respective accordion-like or bellows-like trimming components are associated with the ends of the grip elem... | 06/25/1996 |
| 5528796 | Hinged connection for a tilt up device A hinge assembly removably connects two bodies for pivotable movement relative to one another. The hinge assembly includes a first convex arcuate surface and a first concave arcuate surface on one body and a second convex arcuate surface and a second conc... | 06/25/1996 |
| 5528797 | Device to swivel a traversing flat can on a textile machine which delivers a fiber sliver A device for imparting swivelling motion to a traversing flat can of a textile machine includes a traversing mechanism configured to drive the flat can between return points along a back-and-forth traversing path relative to the textile machine. The trave... | 06/25/1996 |
| 5528798 | Draw frame and process for the operation of a draw frame responsive to silver sensing A process for controlling the operation of a textile draw frame wherein a plurality of fiber slivers are fed to the draw frame at a predetermined desired delivery speed includes monitoring the presence of individual fiber slivers delivered to the draw fra... | 06/25/1996 |
| 5528799 | Thread-guiding component with improved surface Described are thread-guiding components for apparatus for producing, treating and processing fiber materials, having a surface which comes into contact with the fiber materials defined by certain values of the maximum averaged roughness depth Rz | 06/25/1996 |
| 5528800 | Combination eyeglasses and interchangeable fashion accessory Eyeglasses having eyeglass accessories releasably attached to the temple pieces of the eyeglasses to allow a fashion accessory such as headgear to be interchangeably interconnected to the glasses are provided. The connectors joining the headgear to the ey... | 06/25/1996 |
| 5528801 | Stringer tape and slide fastener incorporating the same A slide fastener comprising a pair of stranger tapes, each including an elongated tape body including a plurality of warp threads and a beaded longitudinal edge portion provided on one longitudinal edge of the elongated tape body, the beaded marginal port... | 06/25/1996 |
| 5528802 | Lockable slider for slide fasteners A lockable slider for a slide fastener includes a locking key composed of a lock bar, a grip lever provided at one end thereof so as to extend radially outwardly therefrom and a locking prong provided at an intermediate position thereof so as to extend ra... | 06/25/1996 |
| 5528803 | Double locking cinch sack winch lock There is described a winch lock assembly which serves to cinch a sack and its contents closed, thereby locking said contents inside said sack, and at the same time, containing the cinch cord within the winch lock assembly. The winch lock includes a crank ... | 06/25/1996 |
| 5528804 | Teaseling and/or fluffing machine for fabric and knitwork A teaseling and/or fluffing machine for fabric, including a load-bearing structure having two sidepieces supporting at least one drum which rotates about a central shaft and supports on its two lateral endpieces two series of teaseling and/or fluffing rol... | 06/25/1996 |
| 5528805 | Cranking mechanism for a needle board for needling a nonwoven web An apparatus which serves to needle a nonwoven web and comprises at least one needle beam for carrying at least one needle board, a rocker, which carries the needle beam and comprises at least two parallel arms, which are pivoted to a frame, and a slider-... | 06/25/1996 |
| 5528806 | Tunable composite longitudinal vibration mechanical filter manufacturing method A composite longitudinal vibration mechanical filter for delivering out a supplied high-frequency signal in a predetermined frequency range includes a plurality of vibratable bodies including input and output longitudinal vibratable tuning bars with piezo... | 06/25/1996 |
| 5528807 | Cross-tie pre-plating system A machine for fastening rail plates to cross-ties, utilizing spikes or the like, and method therefore, is disclosed in the present invention. The preferred apparatus of the present invention teaches a system wherein there is provided a conveyor for convey... | 06/25/1996 |
| 5528808 | Wire installation tool An installation tool for stringing a tensioned wire between an anchor point and a retaining point, including a sleeve having a slidably mounted pin inside. A tip of the pin holds a loop end of the tensioned wire (such as a coronode in a corotron wire asse... | 06/25/1996 |
| 5528809 | Dual-sided bushing installation tool for vehicle transmissions A dual-sided, reversible bushing installation tool having two support cylinders for receiving bushings thereon. The cylinders are disposed upon opposing surfaces of a circular stopping flange and extend outward therefrom. Each cylinder has a substantially... | 06/25/1996 |
| 5528810 | Method and apparatus for renovating water coolers A method of reducing the expense and labor of renovating different brands of used water coolers. In one of its aspects, the method comprises providing new front panel elements that are substantially identical to each other, and are shaped and adapted to r... | 06/25/1996 |