Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 5845582 | Slot sealing system for a pneumatic transportation system guideway An improved system for sealing a slot (37) in the guideway (13) of a pneumatic transportation system includes two separate pairs of sealing flaps for producing two separate opposed seal interfaces (47, 49) through which a travelling pylon (18) connecting ... | 12/08/1998 |
| 4678128 | Fiber-bale plucker A fiber-bale mill comprises a cutting device which is movable over a row of fiber bales. A collector passage is open on top below the cutting device which travels to and fro. An air passage in a cutting device through which the cut fibers are drawn from t... | 07/07/1987 |
| 4658732 | Pneumatic propulsion system for freight and/or passenger vehicles A pneumatic propulsion system for passenger vehicles is constituted by a structural beam, composed of modular elements end-supported on pillars. The beam supports the trackway and provides an air duct for pneumatic propulsion of vehicles. A longitudinal s... | 04/21/1987 |
| 4587906 | Pneumatic propulsion system for car and passenger vehicles A system for propelling vehicles for carrying passengers or cargo comprises a longitudinal duct, having a slit at the top and a pair of rails or tracks. A vehicle is provided to run on the tracks and has a fin which projects into the duct to substantially... | 05/13/1986 |
| 4574705 | Pressurized air vehicle transportation system An improved transportation system is provided by which vehicles may be propelled along the top of a duct on a cushion of pressurized air. The duct is provided with a grating on its upper surface through which the pressurized air is emitted from the interi... | 03/11/1986 |
| 4365764 | Suction apparatus for removing fiber material A fiber bale opener includes a truck arranged for back-and-forth displacement along a travelling path, an opening mechanism carried by the truck and arranged for removing fiber from the top of fiber bales positioned along the travelling path and a suction... | 12/28/1982 |
| 4347791 | Vehicle guideway system A guideway system for cargo including vehicles is provided wherein a carriage glides on a rail mounted in a channel. The rail has compressed air discharge ports and vacuum intake ports positioned longitudinally therealong. The compressed air ports emit su... | 09/07/1982 |
| 4273031 | Fluid pressure containment actuator A fluid pressure containment device utilizing a new design of pressure seal which accomplishes its purpose by a rotary motion of a tube placed inside a vessel. A helical slot cut into the tube causes the tube to rotate by the camming action of a free floa... | 06/16/1981 |
| 4252285 | Dynamic seal for slotted cylinder An improved dynamic seal for the longitudinal slot in a pressurized cylin of an aircraft catapult system having a shuttle adapted to travel at high speed through the slot. The seal includes a flexible, elongated sealing strip extended along the slot in s... | 02/24/1981 |
| 4126093 | Air supply track for air bearing transporter and the like An air supply track for positioning in a floor, and a probe for mounting on a vehicle which moves along the floor. An air supply track having a slotted conduit with the slot closed by a membrane urged against the slot by air pressure within the conduit. A... | 11/21/1978 |
| 4072355 | Fluid supply duct and pickup for mining machines A duct for use with mine equipment is provided with an elongate aperture normally closed by a displaceable sealing means to retain a fluid, under pressure, within the duct, the sealing means, in use, being displaceable by fluid pick-up means carried by a ... | 02/07/1978 |
| 4067257 | Electrical conduit An electrical power supply conduit comprises an elongate electrical conductor located in the conduit, the latter preferably being pressurized with clean air or an inert gas and having an entry slot extending longitudinally, through which slot, in use, an ... | 01/10/1978 |
| 3995560 | Rail obstruction sensing means for a rail transportation system In a rail transportation system, a sensor assembly is mountable on a rail vehicle for detecting, during the travel thereof, a rail obstruction which would inhibit continued and uninterrupted travel of the vehicle and for transmitting such detection to the... | 12/07/1976 |
| 3930450 | Boat ride for amusement park A boat ride system for an amusement park, which includes a main channel and an auxiliary channel extending under the main channel and isolated from it except along a narrow slot. A boat for carrying people includes a hull floating in the main channel, a p... | 01/06/1976 |
