Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7396202 | Lift and carrier assembly for a personal-transportation vehicle A preferred embodiment of a lift and carrier assembly for a personal-transportation vehicle includes a deck frame, a platform, and a trolley assembly mounted on the deck frame. The trolley assembly includes a drive nut, a motor for rotating the drive nut, and a driv... | 07/08/2008 |
| 6902369 | Elevating mechanism, carrier conveying apparatus and heat treatment installation In an elevating mechanism 14 where an elevating mechanism 17 carried so as to rise and fall along a fixed surface 16 is moved up and down through a suspension member 18, a braking mechanism 18 is born by the elevating mechanism ... | 06/07/2005 |
| 6499933 | Elevating mechanism, carrier conveying apparatus and heat treatment installation In an elevating mechanism 14 where an elevating mechanism 17 carried so as to rise and fall along a fixed surface 16 is moved up and down through a suspension member 18, a braking mechanism 18 is born by the elevating mechanism 17 so as to pivot verticall... | 12/31/2002 |
| 6454511 | Adaptive load-clamping system A fluid power load-clamping system includes at least one fluid valve for variably regulating the maximum fluid pressure causing closure of the clamp. Preferably the valve increases the maximum fluid pressure automatically in relation to the measured magni... | 09/24/2002 |
| 6386817 | Apparatus and method for mounting and transporting a wheelchair upon a towing frame of a vehicle A wheelchair carriage in which an upright support post detachably couples to a towing frame of a vehicle. A tubular housing slidably receives an end of the post and is biased against the post. An enclosure for holding a wheelchair includes a base member m... | 05/14/2002 |
| 6244422 | Apparatus for sensing and controlling tipping movement of a semiconductor boat A guard fence is mounted on a transfer arm used to transport a boat carrying semiconductor wafers. The fence limits tipping movement of the boat and includes a plurality of sensors to sense tipping movement of both the top and bottom of the boat, in oppos... | 06/12/2001 |
| 5754105 | Autohandler An autohandler for supplying a lot of feed trays carrying samples and for removing a lot of return trays loaded with tested samples. A loading mechanism has a feed tray elevator containing samples to be tested. An unloading mechanism has a return tray ele... | 05/19/1998 |
| 4955461 | Valve system for preventing uncontrolled descent in fork lift trucks A hydraulic lift valve system for fork lift trucks comprising a three way valve including a spool in a bore having a first neutral position, a second lift position and a third lower position. In the second lift position, the spool functions to apply fluid... | 09/11/1990 |
| 4727962 | Movable sensing apparatus Movable sensing arrangements are prone to damage, unable to position a load engaging device relative to a load for stacking purposes, and unable to controllably position the sensing arrangement. A movable sensing apparatus having a housing and first and s... | 03/01/1988 |
| 4685860 | Apparatus for loading a wheelchair or similar object An apparatus for loading a wheelchair or similar object into a vehicle. When in a stored position, the apparatus and wheelchair are fully contained within said vehicle. A first embodiment illustrates use of the apparatus in a rear compartment of a station... | 08/11/1987 |
| 4632620 | Apparatus for stacking pallets on which articles, preferably large sacks, have been deposited Apparatus for stacking articles, particularly pallets on which articles having a substantially flat surface, preferably large sacks, have been deposited, the apparatus includes spaced apart parallel tines, which constitute lifting arms and are adapted to ... | 12/30/1986 |
| 4595331 | Automated railcar loader and method Disclosed is a system for automatically loading a transport vehicle with unit loads by automatically moving the unit loads from a predetermined loading position to prescribed positions in the transport vehicle. The present invention uses a loading vehicle... | 06/17/1986 |
| 4564085 | Controlling arrangement Controlling arrangements of the type used for aligning a load engaging assembly with a load to be lifted tend to be bulky, costly, unable to accurately position the load engaging assembly with the load to be lifted, and unable to accommodate different typ... | 01/14/1986 |
| 4543031 | Apparatus for sideshift carriage control In a material handling vehicle having an operator platform, a sideshift carriage mounted for lateral movement relative to the platform, a traverse carriage mounted for lateral movement relative to the sideshift carriage and forks mounted to the traverse c... | 09/24/1985 |
| 4540329 | Safety lock for tailgate lift A safety locking mechanism for locking a hoist, such as a power operated tailgate, with repect to its supporting structure comprises: a pair of latch arms which are connected to one another by a flexible cable. A pair of power transmission chains connect ... | 09/10/1985 |
| 4499971 | Material handling vehicle having improved chain monitoring An improved system for monitoring lift chains included within mast assemblies in material handling vehicles disables downward movement of the forks upon detection of a first level of slackness in a lift chain. Since upward movement of the forks is not dis... | 02/19/1985 |
| 4407623 | Lift assembly including a reaction switch A lift system for a transit vehicle includes a stationary main frame secured within a door recess of the vehicle and a side frame that is movable relative to the main frame. An articulated platform including steps pivotally secured to the side frame and s... | 10/04/1983 |
| 4392771 | Lift safety switch system An electrically controlled hydraulic lift, such as wheelchair lifts for vehicles, wherein the hydraulic reciprocating motor for operating the platform of the lift is mounted in a vertical slot so that any obstruction in the downward movement of the platfo... | 07/12/1983 |
| 4364704 | Grab bucket suspended from hoisting installation The disclosure is directed to a grab bucket suspended from the cable of a hoisting means. The hosting means includes a first reversible motor drive means to raise and lower the grab bucket and a second motor drive means is associated with the grab bucket ... | 12/21/1982 |
| 4354568 | Electrically controlled travel drive control system for steerable vehicles, particularly fork lift trucks The invention relates generally to steerable vehicles, particularly fork lift trucks, which include one or more travel drive motors adapted to be controlled in a predetermined manner, and a steerable swivelled wheel assembly. To increase the safety of suc... | 10/19/1982 |
| 4285626 | Fork lift truck with plate glass handling attachment A fork lift truck is equipped with an attachment or fixture for handling a plate glass load. The truck is also equipped with a control system which includes sensing switch means for controlling automatically the operation of the truck to insure safe pick-... | 08/25/1981 |
| 4279562 | Bucket conveyor A bucket conveyor is provided with a frame having upwardly inclined spaced parallel guide rails which support the bucket for up and down movement along the inclined guide rails, a chain-and-sprocket bucket support and drive mechanism is disposed along eac... | 07/21/1981 |
| 4221530 | Force-moment compensating apparatus A force-moment compensating apparatus, particularly adapted for use with load handling apparatus, including stabilizing means, sensing means for sensing a change in value of a force-moment acting on the apparatus, and actuator means responsive to the sens... | 09/09/1980 |
| 4068773 | Lift vehicle with fail-safe overload protective system An overload protective system continuously monitors the forward overturning moment on a counterbalanced lift truck and prevents further raising of the carriage or further forward tilting of the mast when the overturning moment is excessive. Resistance str... | 01/17/1978 |
| 3993166 | Overload signalling system for fork lift trucks and the like An electrical alarm system, which responds to improper and/or unsafe loading of a fork-lift truck or other load-sustaining apparatus equipped with a suitable sensing transducer, is controlled by a high-gain electronic differential switch whose comparisons... | 11/23/1976 |
| 3960286 | Automatic overload control for a counterbalanced lift truck When the load moment on a counterbalanced lift truck exceeds a predetermined magnitude, a blocking valve automatically prevents forward tilting of the mast and elevation of the load. The load moment is sensed by the pressure differential across the tilt j... | 06/01/1976 |
