Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7328776 | Brake device for a strap-reel frame A brake device for a strap-reel frame is installed on the frame body of the strap-reel frame for braking the inner and the outer disc pivotally fitted on the horizontal shaft of the frame body. The brake device includes a swinging rod having one end pivotally connec... | 02/12/2008 |
| 7287627 | Gravity operated cable brake for an elevator A cable brake has an electromagnet releasably retaining a mass that falls down guide rods under the effect of gravity and impacts a first arm of a trigger lever. Upon impact by the mass, the trigger lever rotates a second arm with a pawl to release a crossbar, where... | 10/30/2007 |
| 6823969 | Braking device for an elevator A braking device acts on a guide rail and consists of a housing that is arranged at an elevator car yoke and serves as a support for spring packets and/or for adjusting packets. The housing also serves as a support and guide for chock guide elements that in turn ret... | 11/30/2004 |
| 6817598 | Gun brake device The present invention provides a gun brake system adapted to slow the descent of a tool string in a well. In one embodiment, the brake system comprises a brake installed within the well and having a snug fitting restriction and one or more fluid channels extending a... | 11/16/2004 |
| 5845746 | Wheelchair dynamic braking system An automatic braking system for wheelchairs which prevents rearward, downhill motion of wheelchairs while having no effect on horizontal or uphill motion. The braking system is made up of circular ratcheted plates which are attached to the axles of the dr... | 12/08/1998 |
| 5199535 | Acceleration-sensitive friction device To eliminate undesired movement of control members, e.g. throttle control levers, subjected to high fore-and-aft accelerations, a mechanism is proposed in which brake pads (229), (231) bearing on a control surface (220) forming part of the control member ... | 04/06/1993 |
| 4681306 | Two chamber engine mount with hydraulic damping A two chamber engine mount with hydraulic damping includes rubber-elastic peripheral walls, a support housing disposed outside at least one of the walls, an orifice plate disposed between the walls defining upper and lower fluid-filled chambers above and ... | 07/21/1987 |
| 4560040 | Brake device for braking the saw chain of a portable motor-driven chain saw A braking device for braking the saw chain of a portable motor-driven chain saw having a safety device which has a mass member, a locking lever being provided which is pivotably mounted on the hand guard lever and bears the mass member at its free, sprung... | 12/24/1985 |
| 4327324 | Anti-theft electric meter A watthour meter with a rotatable metering movement responsive to the flow of energy through the meter includes a gravity activatable contact or stop element to engage the metering movement when the meter is inverted for preventing deregistration of consu... | 04/27/1982 |
| 4234069 | Vehicle speed control apparatus Automatic braking apparatus for controlling the speed of a vehicle travelling downwardly on an inclined slope. The apparatus comprises a wheel housing, a pair of specially designed wheels mounted in the housing for combined rotary and axial motion, and a ... | 11/18/1980 |
| 4195795 | Winding up device for a safety belt A device for winding up a safety belt is locked in response to a change of inertia of the device housing. The device includes two elements at least one of which is a rotatable member having a pulley at one end with a band wound around it. An end of the ba... | 04/01/1980 |
| 4149616 | Deceleration controlled brake A deceleration controlled and limited brake incorporates a deceleration sensor to limit the amount of braking torque which can be manually applied to a disc type brake. The deceleration sensor is a weighted lever which responds to deceleration by tending ... | 04/17/1979 |
| 4103842 | Locking sensor for belt retractor An emergency locking retractor system for storing a length of safety belt incorporates a sensor which includes a multi-directional pendulum device displaceable from its rest position by acceleration. Displacement of the pendulum is utilized to change the ... | 08/01/1978 |
| 4050644 | Inertia responsive control device An inertia responsive control device in which a ball is provided which is supported by a recess therebeneath which is smaller in the lateral direction than the ball. A control element is pivotally supported at a point spaced from the ball and extends over... | 09/27/1977 |
