Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7552975 | Backrest attachment device A backrest attachment device for a chair is disclosed and includes a metal bow with two bends that is designed such that a shorter intermediate piece with a 90° bend is connected to a comparatively long flank, the shorter intermediate piece in turn having connected... | 06/30/2009 |
| 7380879 | Self-leveling furniture leg foot A furniture leg foot includes (a) a body adapted for attachment to a lower portion of a furniture leg, the body having a longitudinal axis and being made from a first material; and (b) one or more resilient inserts disposed within the body, the one or more resilient... | 06/03/2008 |
| 7347499 | Marine seat interchangeable component assembly and method A seat for marine use including a hollow primary seat structure. The primary seat structure has a generally upright back portion and a seat portion formed integrally with the back portion and extending forwardly therefrom. The back portion includes at least a pair o... | 03/25/2008 |
| 7341548 | Ball and frame exercising apparatus A resilient exercising ball is confined within a frame which defines a space around the ball so that the ball has limited universal movement. The ball is normally centered within the frame by elastic members or cords having end portions attached to the frame. The ba... | 03/11/2008 |
| 7334845 | Comfort surface for seating A seating unit includes a perimeter frame, a flexible seating surface supported by the frame, and parallel elongated resilient force-distributing members coupled to the seating surface to control a contour of the seating surface when supporting a seated user. The re... | 02/26/2008 |
| 7293840 | Swimming pool furniture A swimming pool furniture having a vented assembly that can be submerged in an upright, stationary position on the bottom surface of the swimming pool allowing the user to access the furniture with his or her body partially submerged in the pool. The assembly includ... | 11/13/2007 |
| 7275788 | Music posture chairs Chairs for encouraging proper posture for performers, including vocalists and instrumentalists. Chairs allow for maintenance of proper posture by performers seated in engaged and in perched positions. ... | 10/02/2007 |
| 7264311 | Synchrotilt seating unit with comfort surface A seating unit includes a base, a reclineable back, a seat, and a control operably supporting the back and the seat on the base for synchronous movement between upright and recline positions. The control includes a pair of flexible support members and a link that co... | 09/04/2007 |
| 7222915 | Backrest of an automobile vehicle seat The backrest (2) of an automobile vehicle seat includes a framework (21), a padding (3), a padding cover (4) covering the front face and the sides of the backrest and a padding screen (7) for the rear face of the backrest. It inclu... | 05/29/2007 |
| 7114782 | Flexible chair with stiffener inserts and method for forming a chair A chair includes: a hollow frame including, on each lateral side of the chair, a front, a back, a bottom, a front bend arranged between the front and the bottom, and a back bend arranged between the back and the bottom; a seat attached to the front of the frame; a s... | 10/03/2006 |
| 7111906 | Flexible seat mount for chair seat bottom A chair includes a frame and a seat bottom associated with the frame. Flexible seat mounts are used to retain the seat bottom on the frame. ... | 09/26/2006 |
| 7073864 | Stackable chair with flexing frame A stackable chair has supporting side members that comprise two bars that cross one another in non-contacting relation to form a substantially X-shaped configuration, the two bars capable of flexing movement relative to one another, so that the chair can flex in res... | 07/11/2006 |
| 7032971 | Seat backs The core (1) of a seat back, which will be upholstered to form the complete back, is a moulded plastics sheet bowed forwardly and with attachment points (12) near top and bottom for securing to a rigid support. The sheet is constructed to be stiffer ov... | 04/25/2006 |
| 7018329 | Sex aid device A sex aid device for assisting a human male and female couple to engage in sexual intercourse. The device includes a frame and resilient belts attached to the frame for providing a seat for a female above the male lying beneath the frame. The frame includes a pair o... | 03/28/2006 |
| 6974188 | Chair with pivotable chair back A chair comprises a frame, a chair back, and a chair back return device. The chair back is mounted to the frame for pivotable movement away from a home position. The chair back return device is arranged to return the chair back to the home position. ... | 12/13/2005 |
| 6957860 | Stackable chair with glides A stackable chair having a support structure and a seat and a back mounted to the support structure. The support structure includes two horizontally extending runner portions, each with two pairs of grooves. Mounted to the runner portions and engaged with the pairs ... | 10/25/2005 |
| 6934990 | Non-liquid buoyant bedding A bed includes a frame supporting a non-liquid material having a density of about 0.15 of to 1 times the density of water. The material can be formed from pellets. The bed can also include a stretchable sheet disposed over the material. ... | 08/30/2005 |
| 6837539 | Movable tablet assembly and seat A chair and tablet combination has a tablet movable from a generally horizontal, operative position above the seat and in front of the backrest to a vertical stored position beside the chair. The chair may have upright and reclined positions for the occupant, and th... | 01/04/2005 |
| 6604784 | Chair and desk system A furniture construction includes a frame structure made up of a pair of spaced frame sections connected together, and a furniture component mounted to the frame structure. Each frame section includes a lower base section, an upright, and a furniture comp... | 08/12/2003 |
| 6250718 | Support member for a chair back A chair including a seat, a support member, an outwardly extending projection and a chair back. A support member extends upward adjacent a rear portion of the seat. An outwardly extending projection is attached the support member. The chair back includes ... | 06/26/2001 |
| 6224159 | Flexible chair which can be disassembled to a flat configuration A flexible chair which can be easily disassembled to or assembled from a flat or substantially flat configuration for storage or shipment. The chair includes a pivoting seat and back assembly and a frame supporting the seat and back assembly. The seat and... | 05/01/2001 |
| 6116692 | Chair construction A chair construction having a molded plastic shell that is interconnected with a tubular supporting structure in a manner that simplifies the manufacture of the chair and at the same time produces a durable construction that can withstand continuous, norm... | 09/12/2000 |
| 6109696 | Chair with chair back attachment A chair having a support member secured to a chair back without fastening devices. The support member having a top portion extends upward from a rear portion of the seat. The projecting surface is attached to the top portion of the support member. The cha... | 08/29/2000 |
| 6056361 | Articulated support chair An articulated support chair has a frame, a seat cantilevered from the frame, and a back hanging from the frame, with a lower end of the back hinged to an underside of the seat. A lumbar support extends from the seat and pivots to maintain supporting cont... | 05/02/2000 |
| 6003948 | Chair construction A chair construction having a molded plastic shell that is interconnected with a sled-base type supporting structure in a manner that simplifies the manufacture of the chair and at the same time produces a durable construction that can withstand continuou... | 12/21/1999 |
| 5997094 | Stackable chair with lumbar support An ergonomic chair having a shell that defines a seat and a back. The shell includes a lower back support that extends upwardly from the rear of its seat to about the middle of the back of the chair. An upper back support also extends upwardly from the re... | 12/07/1999 |
| 5823626 | Mechanism for reclining chairs A reclining chair has a seat and a chair back both tiltably carried on a base. The chair back is provided with lever means for tilting the seat as the chair back is tilted. The lever means contacts the seat at a point which moves in response to the tiltin... | 10/20/1998 |
| 5626394 | Tubular chair frame A flexible chair frame includes symmetrical sides having at least a first crossbar affixed between the rear portions of the sides at seat level. The seat bottom portion of each side is angled upwardly near its end and includes a stacking insert with a tab... | 05/06/1997 |
| 5383712 | Flexible chair A high density stacking flex chair is disclosed. A frame has a seat attached thereto, and a back pivotally attached thereto. The back is curved and can tilt backwards, but is limited by the frame which, through the back, has a lesser radius of curvature a... | 01/24/1995 |
| 5123702 | Interaction-high density stacking chair A high density stacking chair having a unique construction permits interaction between a frame member and a chair shell. The frame member is formed of a unitary construction, and the chair shell is formed of a singled piece of molded plastic material. The... | 06/23/1992 |
| 5110186 | Back assembly for wire rod office furniture stacking chair A wire rod type stacking office furniture chair comprising, including a separate chair seat and back for same, a pair of endless rodding members each defining along the left and right sides of a chair a lower quadrilaterally contoured base frame having lo... | 05/05/1992 |
| 5064247 | Wire rod office furniture stacking chair A wire rod type stacking office furniture chair comprising, including a separate chair seat and back for same, a pair of endless rodding members each defining along the left and right sides of a chair a lower quadrilaterally contoured base frame having lo... | 11/12/1991 |
| 4869554 | Elastomeric woven mat seat suspension A thin vehicle seat assembly having a tubular seat and back rest frame, seat and back rest cushion in the form of woven mats and means for attaching the mats to the seat and back rest frames. The woven mats comprise Hytrel elastomeric filaments extending ... | 09/26/1989 |
| 4660887 | Ergonomic support An ergonomic support in the nature of chairs, sofas and the like, includes flexible and resilient posterior and lumbar supporting portions having non-planar, contoured shaped surfaces which comfortably conform to the body. The supporting portion is shaped... | 04/28/1987 |
| 4548441 | Stacking chair A chair is provided that includes first and second integral tubes that define the front legs, seat perimeter, and back perimeter of the chair. An integral rod is provided which cooperates with openings in the first and second tubes to provide the rear leg... | 10/22/1985 |
| 4545614 | Thin elastomeric seat The disclosure relates to a vehicle seat assembly comprising a tubular frame means for a seat and backrest, a seat and backrest comprised of side by side elastomeric filaments prestretched across the seat frame and backrest frame and secured to the frame ... | 10/08/1985 |
| 4542938 | Flexible chair A chair construction having a movable seat and back includes a pair of chair sides. Said chair sides are mirror images of each other. A substantially horizontal seat is positioned between said chair sides, and a substantially vertical back is also positio... | 09/24/1985 |
| 4526422 | Sitting device A sitting device for freely chosen or fixedly attached mounting on a floor and on a subframe, or for attachment to vertical surfaces, said device comprising an array of supporting faces consisting of at least two such faces, neighboring supporting faces h... | 07/02/1985 |
| 4456301 | Furniture construction A furniture construction includes a plurality of flexible closed loop plastic sections of webbing stretched across a pair of spaced-apart rigid frame members. A plurality of outwardly extending retaining ears positioned in opposing pairs extend outwardly ... | 06/26/1984 |
| 4318556 | Chair and seat-back unit therefor A seat-back unit for a chair utilizes pre-flexed sheets of sinuous spring wire material connected to relatively rigid side support members which afford flexibility, but provide a frame for the unit. The two L-shaped side support members are held apart by ... | 03/09/1982 |