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In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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| Number | Title | Issue Date |
| 8066027 | Vacuum activated closed loop system The Present Invention enables energy to be extracted from the atmosphere by creating a vacuum into which atmospheric air is drawn through a vacuum operated motor. The motor operates on the pressure differential between atmospheric pressure at the motor inlet and the... | 11/29/2011 |
| 7066586 | Ink refill and recharging system Ink refill systems are disclosed. In general, an ink source comprising a saturated zone and a tubarc porous microstructure for conducting ink from the saturated zone to an unsaturated zone are provided. The ink can be delivered from the saturated zone to the unsatur... | 06/27/2006 |
| 6918404 | Irrigation and drainage based on hydrodynamic unsaturated fluid flow Irrigation and drainage systems are disclosed, including a saturated zone and at least one pipe in communication with the saturated zone. The pipe(s) can be configured to comprise a tubarc porous microstructure for conducting water from the saturated zone to an unsa... | 07/19/2005 |
| 6178984 | Self-priming siphon, in particular for irrigation A self-priming siphon has an inverted U-shaped tube filled with a hydrophilic material where one end of the tube is connected to a smaller diameter tube such that when the other end of the tube is immersed in a liquid, capillary action causes the fluid to... | 01/30/2001 |
| 5970999 | Hydraulic vacuum pump The hydraulic vacuum pump (HVP) uses a centrifugal water pump with unconventional inlet and outlet connections that cause unconventional patterns of fluid flow. Valves are not required for operation. The submerged pump outlet must be kept open and unobstr... | 10/26/1999 |
| 5533935 | Toy motion simulator A toy motion simulating apparatus for imparting motion to an operator controlled by a hydraulic control valve to proportionally direct hydraulic fluid from pitch, roll, and yaw fluid nozzles to respective pitch, roll, and yaw receiving chambers which are ... | 07/09/1996 |
| 5274855 | Siphon flushing mechanism and method A siphon flush mechanism is provided for a conventional commode water storage tank in which a siphon metering valve is utilized to control the level of water contained within the flush mechanism. An arcuate flexible connector tube is lifted by the action ... | 01/04/1994 |
| 4406300 | Roof siphon drain Apparatus for siphoning liquid such as water which accumulates in a ponding area (16) located on a flat roof (12) to a drain (14) is disclosed. The apparatus includes a first liquid conduit (21) which has one end (58) in the accumulated water and a second... | 09/27/1983 |
| 4171709 | Device for siphoning water from a ponding area on a flat roof An apparatus for removing water from a ponding area of a flat roof having a run-off system which is no longer operable to drain water from the ponding area which comprises a structure for directing a quantity of the run-off water flowing in the run-off sy... | 10/23/1979 |
| 4124035 | Self priming siphon A self priming siphon device having a pilot siphon tube which discharges into a priming chamber thereby creating a partial vacuum within the priming chamber sufficient to cause flow through additional auxiliary siphon tubes. The partial vacuum is produced... | 11/07/1978 |
| 4035299 | Method of initiating a fluid flow within a siphon tube between an aquarium and its associated filter tank The present invention comprises apparatus for initiating a fluid flow within a siphon tube from an aquarium to its associated filter tank. The novel apparatus comprises the addition of a vacuum duct with an upturned fluid trap to an otherwise conventional... | 07/12/1977 |
