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 |
| 7565955 | Integrated motorcycle brake and suspension system A motorcycle brake and suspension system comprising: an outer tube, having an upper end and a lower end, a mainspring mounted inside the outer tube, a brake line traveling through the central axis of the outer tube and looped to allow slack, and a braking system act... | 07/28/2009 |
| 7497307 | Hidden brake line suspension A motorcycle brake and suspension system has an outer tube, a mainspring mounted at least partially inside the outer tube. The mainspring has a smaller diameter than the outer tube, a pushrod mounted at least partially inside the mainspring. The pushrod has a smalle... | 03/03/2009 |
| 7243398 | Pivot-action damper A pivot-action damper which for example dampens the impact effect of the closing movement of doors, furniture doors or flaps displays excellent braking force or damping force, even over small angular regions as a result of an outer cylindrical body which encompasses... | 07/17/2007 |
| 6698558 | Safety brake system for garage doors A brake system for garage doors including a piston assembly movable within a longitudinal housing assembly and including a central through opening and a threaded bushing rigidly mounted to the piston assembly. A threaded axle is cooperatively received by ... | 03/02/2004 |
| 5924337 | Drive unit with a hydrodynamic retarder and transmission A drive unit for a vehicle which includes an engine, transmission and hydrodynamic retarder having a rotor and a stator. A retarder shaft is rotatably supported by two bearings and extends through the housing of the transmission. A sealing element provide... | 07/20/1999 |
| 4819774 | Drive arrangement for commercial motor vehicles A drive arrangement for a commercial motor vehicle has a variable-speed transmission in which a brake is provided. The brake is formed as a radial-piston pump in which the piston under the control of the control pressure can be selectively coupled with a ... | 04/11/1989 |
| 4811942 | Playground unit having governor for controlling rotational speed A playground unit having a rotatable horizontally disposed deck adapted to support at least one passenger is provided with a control means operatively connected to the deck to limit the rotational speed thereof. The control means is a hydraulic governor c... | 03/14/1989 |
| 4766982 | Apparatus for supporting and driving wheel angular deceleration sensor In a vehicle having a wheel suspended on a body through a suspension device with a damping facility, a sensor having a flywheel and detecting a wheel angular deceleration is supported on the stationary supporting structure of the suspension device which c... | 08/30/1988 |
| 4721322 | Anti-dive braking apparatus A vehicle anti-dive braking apparatus which prevents dive and increases suspension damping during braking. A rotatably mounted disc brake causes hydraulic fluid to flow from hydraulic reservoirs upon braking to an anti-dive cylinder, secondary damper cyli... | 01/26/1988 |
| 4697825 | Anti-lock braking system for the front wheel of a motorcycle An anti-lock brake system employing an anti-lock control unit between a brake master cylinder and a front wheel brake. The brake system is applied to a damped telescopic front fork and includes an anti-dive device which operates to increase damping force ... | 10/06/1987 |
| 4679664 | Blanking impact absorber A mechanical, vibration-preventing means to be used on mechanical and hydraulic presses, bar cutters, shearing machines and the like preferably cyclicly working machine tools with a pulse-like pressing process is adapted to absorb the stroke at punching a... | 07/14/1987 |
| 4653604 | Suspension and or shock-absorbing device for a support arm of a vehicle wheel Suspension and/or shock-absorber device of a rotary support arm of a vehicle wheel such as the rear wheel of a motorcycle, comprising disposed on one side of the support arm, a three arms lever mounted rotary-wise on a lever axle integral with the chassis... | 03/31/1987 |
| 4625985 | Anti dive devices for motorcycles An anti dive device for a motorcycle having a front wheel supported by front forks, each fork having an inner pipe and an outer case. The outer case of each front fork has two chambers filled with working fluid, at least two working fluid passages of diff... | 12/02/1986 |
| 4623048 | Governor for controlling rotational speed A playground unit having a rotatable horizontally disposed deck adapted to support at least one passenger is provided with a control device operatively connected to the deck to limit the rotational speed thereof. The control device is a hydraulic governor... | 11/18/1986 |
| 4579189 | Two-wheeled motor vehicle anti-lift device A two-wheeled motor vehicle anti-lift device which utilizes the braking torque produced by the rear brake, via a link structure mechanism installed on the body of the vehicle, as anti-lift force. The anti-lift control mechanism produces anti-lift force on... | 04/01/1986 |
| 4572534 | Front wheel suspension for motorcycles A front wheel suspension for a motorcycle in which the nose-diving during braking is reduced; for that purpose, an auxiliary spring is additionally connected with the spring element of the spring system during the braking operation. In a preferred embodim... | 02/25/1986 |
| 4552373 | Front wheel suspension system for motorcycle or the like An anti-dive device for the telescopic front fork assembly of a motorcycle includes a contraction regulator mounted on the forward face of the bottom case. The bottom case carries the axle for the front wheel. Braking torque causes the movement of a membe... | 11/12/1985 |
| 4515384 | Front wheel suspension system for a motorcycle A front wheel suspension system for a motorcycle including a telescopic hydraulic shock absorber mechanism which provides an anti-dive function upon braking of a front wheel of the motorcycle. In addition to a main oil passage which is intercepted upon br... | 05/07/1985 |
| 4511156 | Wheel suspension for a motorcycle A wheel suspension is disclosed, particularly for the front wheel of a motorcycle. Upon braking resulting in compression of the suspension and consequent rearward movement of the wheel, the compression produces displacement of a rod which in turn expels a... | 04/16/1985 |
| 4506751 | Tilt cab truck with anti-dive and anti-sway control Disclosed is a tilt cab truck having a shock absorber assembly in which a path of fluid communication between the fluid reservoir and the interior of the shock absorber assembly is automatically blocked both when the brake is applied and when a roll-angle... | 03/26/1985 |
| 4414930 | Kinetic engine control An internal combustion engine in which the displacement in the cylinders is automatically varied to match the power output of the engine to power requirements. One or more kinetic controllers external to the cylinders connect engine piston cross-shafts to... | 11/15/1983 |
| 4367882 | Suspension apparatus Suspension apparatus (10) for the front end of a motorcycle, bicycle, or like vehicle (11), having a brake (12) on the front wheel (13), comprising a suspension device (14) comprising a pair of telescopic members (27,28) connected to permit relative movem... | 01/11/1983 |
| 4353570 | Oil brake device for use in bicycles This disclosure provides an oil brake device for use in the bicycle in which a saddle support is resiliently suspended independent of a main body frame so as to prevent the transmission of shock and vibrations of front and rear wheels in bicycle riding. T... | 10/12/1982 |
| 4295658 | Front end shock absorbing apparatus for wheeled vehicle A telescopic shock absorber (14) disposed between a front wheel (19) and frame (12) of a motorcycle (11) is formed with first and second fluid chambers (38), (39), hydraulic fluid flowing from the first chamber (38) to the second chamber (39) upon compres... | 10/20/1981 |
| 4159123 | Motorcycle braking mechanism including means for controlling telescoping action of the front fork means A motorcycle braking mechanism includes a brake plate that is rotatably mounted on a front axle and a torque arm is secured to the brake plate. A rod has one end pivotally connected to the torque arm and the other end is pivotally connected to a clamp tha... | 06/26/1979 |
| 4152000 | Vehicle suspension stabilizing system A vehicle suspension stabilizing system having a frame, a wheel assembly having a wheel rotatable about an axis, the wheel assembly being pivotally connected to the frame offset of the axis, a brake assembly associated with the wheel assembly, the brake a... | 05/01/1979 |
| 4023657 | Device for damping a perpendicularly oscillating mass A device for damping a perpendicularly oscillating primary mass comprising a perpendicularly oscillatory reference mass supported by a piston in a pressure fluid chamber of an adjusting member. The pressure in the fluid chamber compensates for the weight ... | 05/17/1977 |
| 3989261 | Motorcycle front-wheel suspension with means for restraint of compression of a telescopic front upon braking A brake on the front wheel of a motorcycle is associated with a member which is arranged for angular displacement relative to a front fork upon application of the brake. Torque exerted on this member upon braking is utilized, as through a leverage mechani... | 11/02/1976 |