...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5657488 | Decubitus pad system A decubitus pad system includes a peripheral padding positionable about a decubitus ulcer. The padding has an interior layer and an exterior layer. The interior layer has a plurality of foam supports secured thereto. The padding has a plurality of opening... | 08/19/1997 |
| 5657489 | Blanket with head and hand openings A blanket device comprising a rectangular panel having at least one head accommodating opening sized for allowing a head to be inserted therethrough, and at least one pair of hand accommodating openings shaped for allowing a pair of hands to be inserted t... | 08/19/1997 |
| 5657490 | Hat for maintaining a wearer's hairstyle A hat having elongated support members extending from the exterior of the crown of the hat, for supporting the hat upon the head of the wearer, to prevent the hat from causing any undue adverse affect to the wearer's hair style. An alternative embodiment ... | 08/19/1997 |
| 5657491 | Cap having removable adjustment strap and support panel A cap includes a cap band defining a cap base, and a crown is attached to the cap band. The crown has a front portion and a back portion. First and second spaced-apart tabs are attached respectively to the cap band at the front portion of the crown. The t... | 08/19/1997 |
| 5657492 | Protective head device A protective head apparatus that includes a hard, impact resistant outer body portion having a convex outer surface and a concave inner surface. A padding layer, forming a cushioning element, is coupled to the concave inner surface of the outer body porti... | 08/19/1997 |
| 5657493 | Diving mask with quick-release strap attachment A diving mask includes a frame with a front portion and first and second side portions and enclosing at least one lens, a flexible skirt secured to the frame and constructed and arranged to provide a water-tight seal between the frame and the user's face,... | 08/19/1997 |
| 5657494 | Toilet flushing device The flushing device has an actuating device for optionally triggering a complete or partial flushing. A valve body of drain fittings is raised for this purpose. In the case of a partial flushing, the valve body is raised with a weight body, which loads th... | 08/19/1997 |
| 5657495 | trap-forming device and toilet bowl provided with such a device A trap-forming device that includes a hollow body having an upstream orifice situated in a bottom portion of the body for communicating with an upstream length of fluid evacuation pipework, and a downstream orifice situated in the bottom portion of the bo... | 08/19/1997 |
| 5657496 | Two-axis rotating hydrotherapy jet with adjustable nozzle orientations An adjustable rotating hydrotherapy jet that rotates around primary and secondary rotation axes and includes a housing, a water inlet to the housing, and a water nozzle within the housing that forms water flowing through the inlet into a drive jet. A prim... | 08/19/1997 |
| 5657497 | Sleeping bag with overlapping batts A sleeping bag includes batts (17, 18) transversely positioned in a shingle arrangement between outer and inner shells (10, 23). The sleeping bag includes a top flap and a bottom flap (11, 12). The batts in the bottom flap are straight, and overlap enough... | 08/19/1997 |
| 5657498 | Methods and apparatus for acquiring table elevation information Apparatus and methods for determining cradle support elevation in an imaging system are described. In one form, the apparatus includes a support rail secured to and between table support legs of a table arrangement. The support rail is maintained substant... | 08/19/1997 |
| 5657499 | Reduced energy and volume air pump for a seat cushion An efficient pump system for transferring air between sets of bladders in a cushion. The pump system utilizes a reversible piston within a cylinder in conjunction with an equalizing valve in the piston which opens when the piston reaches the end of travel... | 08/19/1997 |
| 5657500 | Spring mattress Foldable spring mattress for divan-beds and the like, comprising at least one pair of elements (1a, 2a, 3a; 102, 103a) which are independent of one another and contain the springs (4) and the padding (6, 7, 8, 9, 10) and which are arranged adjacent to one... | 08/19/1997 |
| 5657501 | Method for the intensification of washing processes In a method for intensifying a washing process by use of a contact material to be added thereto, a noticeable improvement of the cleaning effect is achieved both when washing textiles as well as when rinsing dishes upon saving of cleaning agent, reduced w... | 08/19/1997 |
| 5657502 | Loading lip extender operating mechanisms for edge mounted dock levelers A loading lip extender operating mechanism for edge mounted dock levelers to elevate and lower a bridge plate connected to a dock and loading lip plate pivotably coupled to the bridge plate to follow the movements imparted to the bridge plate. The elevati... | 08/19/1997 |
| 5657503 | Automated rotary mopping, waxing, and light sweeping systems A device for cleaning floors or other hard surfaces is disclosed. The device includes a roller, a shear member, and a pump. The cylindrical surface of the roller contacts a hard surface as it is being cleaned. The roller has an absorbent outer surface ada... | 08/19/1997 |
| 5657504 | Roller mop with wet roller, squeegee, and debris pickup A cleaning mop has a cylindrical roller formed of adjacent disk-shaped rings of resilient foam material which engages and rotates relative to a floor surface to be cleaned to scrub the surface when the mop is pushed in a forward direction and picks up par... | 08/19/1997 |
| 5657505 | Drain cleaning apparatus Drain Cleaning Apparatus for rotating a drain cleaning snake comprises a frame and housing assembly supporting an axially displaceable clutch actuating shaft which supports a first clutch actuator for rotation relative thereto and axial displacement there... | 08/19/1997 |
| 5657506 | Contact lens treatment apparatus A self-contained single-use apparatus for cleaning and hydrating a pair of contact lenses comprises a housing including a pair of hollow snap-lock lens containers in which opposed layers of a deformable relatively hydrophobic reactive material having surf... | 08/19/1997 |
| 5657507 | Windshield cleaning tool A windshield cleaning tool includes a cleaning member which is preferably triangular in shape with rounded corners and a bottom with a corrugated cleaning surface. There is a handle member hingedly connected to the top of the cleaning member. Preferably t... | 08/19/1997 |
| 5657508 | Apparatus for the extraction of objects immobilized in a pneumatic transfer network Apparatus for the extraction of objects (32) immobilized in sections (19) of a pneumatic transfer network (30). The apparatus includes a flexible pipe (12), a metal-clad or radiation-impervious container (10) and a blower (5). A flange (16) makes it possi... | 08/19/1997 |
| 5657509 | Vacuum extractor The vacuum extractor of the present invention is a self contained system for delivery of hot cleaning solution to a surface and vacuum removal of the spent solution either simultaneous with its application or at a later time through a vacuum system which ... | 08/19/1997 |
| 5657510 | Fluid-filled insulating bushing A fluid-chamber space 21 of an elastic block 20 interposed between an outer cylinder 10 and an inner cylinder 30 is partitioned into two chambers by means of an elastic wall 40, whose inner edges 44 are engaged to an engaging groove of an elastic wall mou... | 08/19/1997 |
| 5657511 | Piston-tpye door closer with adjustable closing speeds An improved multi-stage door closer for automatically closing a door after the door is opened, is disclosed. It contains a cylinder having three sections each with a different diameter, with the middle section having the largest diameter. A pair of speed ... | 08/19/1997 |
| 5657512 | Circular comb for a fiber combing machine A circular comb for a textile combing machine has a comb member formed around a part of the peripheral surface of an essentially cylindrical support member wherein a channel is formed between the comb member and the support member. For the purpose of redu... | 08/19/1997 |
| 5657513 | Cord stopper In a cord stopper, a spherical socket has a central plug-insertion hole, a head-receiving recess at the upper end of the hole, and a pair of diametrically opposed locking tongues projecting centrally from the respective edges of the recess. Also the socke... | 08/19/1997 |
| 5657514 | Angle fit belt clip An angled belt clip for diverse worn articles such as heart rate monitors, swimsuits and the like prevents slippage of the article from the proper location on the wearer's body. The clip is provided with an upwardly or downwardly angled portion which hold... | 08/19/1997 |
| 5657515 | End connector An end connector for an expansible watch band has a plastic insert sandwiched between metallic bottom and top plates. The plastic insert has forwardly projecting mutually spaced lugs enclosed by preformed mutually spaced bottom and top flanges on the bott... | 08/19/1997 |
| 5657516 | Dual structured fastener elements A fastener and a method of fastening articles employing the fastener are provided. The fastener includes a fastener element adapted to be mated in an interlocking arrangement to a complementary fastener element. The fastener element has a plurality of mat... | 08/19/1997 |
| 5657517 | Hook structure for molded surface fastener In a molded surface fastener, a hook has vertical multi-step reinforcing ribs on opposite side surfaces of a stem, and it is therefore possible to make the hook-shape engaging portion adequately soft and to increase the rate of engagement with loops. Furt... | 08/19/1997 |
| 5657518 | Clip for garment hanger There is disclosed a clip for a garment hanger on which clothes are hung directly, and which has front and rear gripping plates which are movable one relative to the other. A locking mechanism, preferably in the form of an arm in a fixed one of the two pl... | 08/19/1997 |
| 5657519 | Safety pin with detachable cap A pin for decorating items comprising a plurality of limbs and a detachable cap. The pin comprises a first limb and a second limb. Each of the limbs comprises a distal end and a proximal end. A distal end of the first limb is attached to a distal end of t... | 08/19/1997 |
| 5657520 | Method for tentering hydroenhanced fabric Woven or knit fabric is pre-tentered (stretched) prior to hydroenhancement treatment to a predetermined width in excess of the desired finished width of the fabric. The pre-tentering width is selected so that the expected shrinkage caused by the hydroenha... | 08/19/1997 |
| 5657521 | Method for manufacturing suede-like woven fabrics A suede-like woven fabric exhibiting a superior resilient elasticity and superior bulkiness may be obtained by a method in which an ultrafine filament yarn, which contains sea and island components having considerably different solubilities to alkali, is ... | 08/19/1997 |
| 5657522 | Coiled electrode assemblies and methods of producing same The present invention relates to coiled electrode assemblies having conductive tabs, methods of attaching the conductive tabs to the coiled electrode, and electrochemical cells employing such assemblies. In the process of the invention, the conductive tab... | 08/19/1997 |
| 5657523 | Positioning mechanism of turret index A positioning mechanism of a turret index which performs index rotation by the use of an index mechanism to transmit output shaft motion and perform positioning by a three-piece toothed coupler. The present invention uses a hydraulic system to control the... | 08/19/1997 |
| 5657524 | Apparatus for handling web roll shafts and cores A portable, manually operated shaft handling apparatus (10), supported by swiveling wheels (12), (13), and (14) having a carriage (60) capable of counterbalancing the weight of the shaft (18) using air springs (50), and (51). The carriage will receive the... | 08/19/1997 |
| 5657525 | Flexible couplings with walk-off detect and lock-on feature A flexible coupling of the type having hubs secured to aligned shafts and connected to one another through the use of a flexible belt surrounding the hubs is improved by forming axial and circumferential grooves on the exterior surface of the belt, each c... | 08/19/1997 |
| 5657526 | Split riding ring for rotary cylinders A method for fabricating and installing a split riding ring for use on rotary cylinders that eliminates the need to remove associated equipment from the rotary cylinders to repair and install a new riding ring. The apparatus consists of a riding ring forg... | 08/19/1997 |
| 5657527 | Methods for making light-weight drainage line units A method for manufacturing preassembled drainage line units comprises feeding a length of perforated vent pipe along a direction of manufacture longitudinally through a tubular mandrel, feeding a continuous sleeve of netting concentrically over the vent p... | 08/19/1997 |