In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7419458 | Adjustable stationary exercise bicycle A new and unique highly adjustable stationary exercise bicycle is presented incorporating a number of features specifically designed for youthful stationary bicycle users. The improvements over the prior art include infinitely adjustable vertical and horizontal seat... | 09/02/2008 |
| 7351186 | Forearm and wrist exercise device A forearm and wrist exercise device includes a base frame, a handle rod, a driver wheel, a driven yoke, a driven wheel and an adjustable tensioner. The base frame is attached to a stationary object, such as a wall. The handle rod extends from the driver wheel and th... | 04/01/2008 |
| 7282014 | Dual circling exercise method and device An exercise device which uses two generally opposing grips on guides to guide a user through circular movements for exercise of the human body. The grips may be movably mounted to side supports or a central base. Resistance to the user's movement of the grips may be... | 10/16/2007 |
| 7201708 | Machine-assisted exercising An exercise machine in which a fan has a rotor that generates drag by causing air to move in response to exercising by a user. A deflection structure deflects air that the rotor has moved and is adjustable to control the amount of drag generated by the rotor. ... | 04/10/2007 |
| 7108641 | Exercise equipment with multi-positioning handles A handle for an exercise device, the handle attached to an actuating arm of the exercise device and including a connection structure that allows the handle to rotate with respect to the arm, as well as pivot in at least two directions orthogonal to the rotation axis... | 09/19/2006 |
| 7083554 | Exercise machine with infinite position range limiter and automatic belt tensioning system An exercise machine having infinite range limiting capability comprises: a frame; a pivotable exercise arm mounted to the frame configured to engage an exercising user and moveable along a stroke path having a fully extended position and a fully flexed position; a m... | 08/01/2006 |
| 6641507 | Free wheel clutch mechanism for bicyclic drive train An exercise bicycle including a frame having a seat and handlebars, a high-inertia flywheel having a hub at a center of rotation, the flywheel being rotatably supported on the frame at the hub, and a drive train including a drive sprocket, a crank arm att... | 11/04/2003 |
| 6113521 | Construction for exercise weight compartments An exercise belt with compartments for individual exercise bar weights, which is sometimes used with some empty compartments to reduce the exercising effort, the use of elastomeric construction material for each compartment holding by its urgency the bar ... | 09/05/2000 |
| 6053850 | Variable resistance exercise device A variable resistance exercise assembly for runners, football players and the like includes a housing having a pair of opposing spaced side walls with an end wall therebetween. A fixed cylinder is rotatably mounted between the side walls. A cord is wrappe... | 04/25/2000 |
| 5961424 | Free wheel clutch mechanism for bicycle drive train An exercise bicycle including a frame having a seat and handlebars, a high-inertia flywheel having a hub at a center of rotation, the flywheel being rotatably supported on the frame at the hub, and a drive train including a drive sprocket, a crank arm att... | 10/05/1999 |
| 5779600 | Rowing simulator A rowing simulator including a frame, a seat slidably mounted on the frame, a pair of adjustable foot rests, and, on each side of the frame, a rotatably mounted flywheel, a driven wheel secured to the flywheel, a rotatably mounted drive wheel, and connect... | 07/14/1998 |
| 5722918 | Jogger exercise with direction adjustable saddle and handlebar A jogger exerciser in which a saddle is connected to an arm member on support frames by a locating plate and a coupling sleeve and fixed in position by a latch. The locating plate is fastened to the bottom of the saddle and can be rotated between two posi... | 03/03/1998 |
| 5558605 | Motor-less treadmill with stepped-up flywheel A treadmill having a frame with first and second rollers mounted at opposite ends of the frame and an endless tread belt placed about the rollers. The treadmill further including a flywheel attached to the frame and coupled to the first roller for rotatab... | 09/24/1996 |
| 5509879 | Portable exerciser with a constant resistance A portable exerciser having an adjustable constant resistance to employment thereof. The exerciser includes a shaft and a housing slidably disposed on the shaft. A gear in the housing engages the shaft and a member frictionally engages the gear so that mo... | 04/23/1996 |
| 5496241 | Exercise machine An exercise machine of the present invention is transformable between a first mode for simulating an activity such as skiing or rowing involving reciprocating linear motion and a second mode for simulating a cycling activity. The exercise machine comprise... | 03/05/1996 |
| 5490824 | Limb exerciser Disclosed is a limb exerciser mainly including an outer wheel housing and an inner wheel set in the outer wheel housing. With frictional members disposed between the contact surfaces of the outer wheel housing and the inner wheel, as well as actuating mem... | 02/13/1996 |
| 5474512 | Mobil resistance exerciser with a regulatable hydraulic resistance pressure A Mobil Variable Hydraulic Resistance Exerciser which allows a user to be in motion throughout the complete exercise movement. This exercises the muscles of the feet, ankles, knees, hips, spine, legs and trunk of the body by providing a constant resistanc... | 12/12/1995 |
| 5302161 | Flexible line guidance and tension measuring device The present invention provides a flexible line guidance and tension measuring device for use on an exercise apparatus to guide a flexible line from a resistance mechanism to an exercise member and measure tension in the flexible line. A fixed member is op... | 04/12/1994 |
| 5292293 | Programmable physical exercise apparatus with inertia A training machine comprising a frame on which is mounted an element freely rotating about a horizontal axis, and an inertial flywheel coupled to said rotating element. A strap is tightened about the flywheel. The rotating element is mechanically coupled ... | 03/08/1994 |
| 5244446 | Multi-purpose torso exercise apparatus The prevent invention provides an apparatus 100 of a type on which a person exercises. The apparatus 100 includes a support frame 101 and a chair member 102 that is rotatably mounted to the support frame 101. A rotational resistance means 105 is also moun... | 09/14/1993 |
| 5195937 | Multi-exercise apparatus A multiple exercise unit capable of providing a user with a wide range of strength and conditioning exercises. The exercise unit provides resistance through an isokinetic device which utilizes a clutch mechanism. Lines extend out of the isokinetic device ... | 03/23/1993 |
| 5147265 | Rotation-activated resistance device A straight back side chair has a seat cushion and a back member, and includes a low resistance loading device that is operated through a system of cords and pulleys from handgrips. The pulleys are supported on arms that are mounted to the back of the chai... | 09/15/1992 |
| 5145472 | Physical fitness exercise machine An upper body exerciser having a frame which supports a rotatable head that has an axis of rotation. The head has two end plates with radially extending slots in which cross rods are reciprocably radially movable. A track mounted to the frame below the ax... | 09/08/1992 |
| 5060938 | Rope climbing exercise apparatus Rope climbing apparatus comprises a support, a length of rope and a rope accumulator supported by the support for storing a variable length of rope. The accumulator includes a dancer and means for force-loading the dancer to a maximum storage position. A ... | 10/29/1991 |
| 5039091 | Exercise machine having flywheel with variable resistance An exercise machine that enables an exerciser to perform golf club swings, baseball bat swings, canoeing strokes, football kicks, tennis serves, ball throwing, weight lifting, bike exercise, and numerous other athletic motions with preselected amounts of ... | 08/13/1991 |
| 5029846 | Control device for simulating road cycling for an exercising apparatus A control device which is provided on an upper end of an exercising apparatus includes a lever arm, and a cylinder which has a profile of hills. A belt which is provided around the wheel is controlled by a slidable engagement between the lever arm and the... | 07/09/1991 |
| 5027794 | Exercise device An exercise device for working one's arms or legs is disclosed. The exercise device includes a crank assembly with a stationary frame and a rotating crankshaft attached thereto. The crankshaft is fitted with either handgrips or shoe plates to which an ind... | 07/02/1991 |
| 5007631 | Structure of climbing exerciser with a counter-weight freewheel mechanism Disclosed is a structure of climbing exerciser, which comprises a freewheel mounted on the frame body thereof and driven to alternatively rotate forward and backward by two driving cords which are connected between the freewheel and two pedals which are m... | 04/16/1991 |
| 4986537 | Sidewinder exerciser The present invention is an exerciser for a user. It has a main body that includes a main frame, a top portion, a bottom portion, and an intermediate portion. The bottom portion contains only one single lower belt rung and only one second lock pin. The si... | 01/22/1991 |
| 4880227 | Variable exerciser An exercise apparatus having an upright support frame upon which is mounted an adjustably weighted pull cable, an exercise lever, a rotary hand crank assembly and a rotary pedal crank assembly, all spaced within reach of a person seated or standing in fro... | 11/14/1989 |
| 4842272 | Exercise apparatus An exercise apparatus having a pair of arms which are rotatable about a horizontal axis permitting a user to grasp handles attached thereto and to windmill the user's arms so that the arms of the machine will rotate about an axis extending through the sho... | 06/27/1989 |
| 4718665 | Exercise device An exercise device having a pair of pivotally interconnected lever arms coupled to a braking mechanims by a planetary gear system to resist pivotal movement between the lever arms. A brace mounted on each of the lever arms secures the lever arms to respec... | 01/12/1988 |
| 4673177 | Resistance freewheel mechanism A resistance freewheel mechanism useful with bicycle type exercisers in which a crank operated drive shaft is positively interlocked with an inertially weighted flywheel by a first positive acting clutch system for rotatably driving the flywheel in one di... | 06/16/1987 |
| 4647035 | Rowing exercise device A wheeled platform to be attached to the feet of an exerciser and rolled back and forth along the ground in front of the exerciser while he or she pulls on handles against resistance. The handles are attached to cords which wind around pulleys which are r... | 03/03/1987 |
| 4611807 | Exercise apparatus having a pair of spaced apart rotating discs Exercise apparatus includes a pair of spaced apart discs journaled for rotation on a frame with adjustable tension elements for varying the force required to rotate the discs. Handles are used to rotate the discs and the handles may be secured to the disc... | 09/16/1986 |
| 4595198 | Centrifugal brake for exercise machine An exercise machine primarily used in exercising and strengthening muscles and ligaments not normally affected by the standard dynamic and/or isometric approaches. The machine causes the user to work against a centrifugally operated brake which increases ... | 06/17/1986 |
| 4576372 | Turntable exercise machine A cylindrical body houses a disc-like pressure plate between a bottom of the body and a disc-like top plate. Ball bearing races are disposed between the body and pressure plate and between the pressure plate and top plate. A reversable ratchet mechanism i... | 03/18/1986 |
| 4558861 | Drive system for exercise apparatus or the like A drive system for an exercise apparatus or the like. The system includes a rotatable member mounted on a frame together with a mechanism for rotating the rotatable member through a drive pulley operatively associated with the rotating mechanism and a dri... | 12/17/1985 |
| 4518163 | Exerciser with electrically controlled resistance An exercise apparatus equipped with an electrically controlled brake may be used for providing resistance force to movement of a holder bar by a user. A rotational transducer is provided to control the brake so that the magnitude of resistance force is va... | 05/21/1985 |
| 4483532 | Exercise machine An exericse machine primarily used in exercising and strengthening muscles and ligaments not normally affected by the standard dynamic and/or isometric approaches. The machine causes the user to work against a centrifugally operated brake which increases ... | 11/20/1984 |