Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4175581 | Apparatus for removing a fitting Apparatus is provided to move a fitting relative to a hole provided through the wall of a water main or the like. The apparatus includes a housing provided with an internal chamber communicating with the atmosphere through two openings. The housing is mou... | 11/27/1979 |
| 4153067 | Method and apparatus for providing removable Service to connections to a high pressure main A sacrificial top tap T and the method of using such a T to tap into a main supply pipe in such a manner that the T may ultimately be plugged and the greater portion thereof removed from the main supply pipe in such a manner as to protect the remaining T ... | 05/08/1979 |
| 4144909 | Apparatus for closing side openings into pipelines In one exemplar embodiment, a combination closure conduit and closure plug are provided for closing a side opening into a pipeline. The closure stub or conduit is attached to the pipeline around the side opening and has an interior annular shoulder. A clo... | 03/20/1979 |
| 4141378 | Pressure pipeline structure and method This invention relates to a pressure/vacuum system apparatus; one part of such apparatus being an economical fitting, another part being operating mechanism, another part being a means to join such fitting to such operating mechanism in a substantially fl... | 02/27/1979 |
| 4128107 | Surface irrigation gate An outlet fitting construction for thin-walled, flexible plastic tubing for fluid distribution systems. The outlet fitting includes first and second outlet members that in the preferred embodiment are threadedly engaged and have aligned axial passageways.... | 12/05/1978 |
| 4127141 | Method and apparatus for stopping fluid escape from pipe mains A method and apparatus are provided for sealing the opening in the sidewall of a fluid carrying main during replacement of a service tee or the like comprising a gate valve, means on end of said gate valve for engaging the end of a service tee remote from... | 11/28/1978 |
| 4122869 | Closure plug assembly The closure plug assembly is used for pressure testing of fluid drain and vent systems. The assembly comprises an inflatable body portion or bulb connected to a rigid holder portion. The rigid holder portion includes a stem section and a plug section. The... | 10/31/1978 |
| 4119115 | Stopping fluid flow in pipes An apparatus for cutting into and stopping the flow of fluid in a plastic pipe including a cutting blade that is forced downwardly into a pipe by a hydraulic force. The blade is slightly larger than the internal diameter of the pipe and thus when located ... | 10/10/1978 |
| 4119100 | Surgical device for discharge of faecal matter from the colon A surgical device for discharge of faecal matter from the colon comprises a bent drainage duct whose inner end lies within the lumen of the colon and is surrounded by an inflatable bag for filling the lumen, the outer end of the duct projecting through th... | 10/10/1978 |
| 4108194 | Method and apparatus for a tapered pipeline seal A method and apparatus for a tapered pipeline seal includes a means for enabling a line to be sealed with a rotatable tapered sealing plug or apparatus.... | 08/22/1978 |
| 4067353 | Pipeline tap and connecting device An invention relating to a device adapted to connect a branch line to a main pipeline without interrupting flow of fluid through the mainline. The device includes a pair of tubular, cutter-containing portions and a branch line connection. The device furth... | 01/10/1978 |
| 4064912 | Gas main stopper The stopper includes a tubular cylindrical housing which seats on a gas main portion provided with a tap hole. A slidable tubular rod extends into the housing through the other end of the latter, and has connected to its lower end by a pivotal link, a sto... | 12/27/1977 |
| 4040450 | Pipe sealing apparatus A drain pipe sealing device wherein a sealing head is supported at the end of a support arm whereby the sealing head can be orientated so as to facilitate entry of the sealing head by way of a vertical riser and then re-orientated to assist in sealing.... | 08/09/1977 |
| 4019541 | Removable plug for pipe junction, and method and apparatus for installing A conical plug adapted to be seated on a conical seat in a pipe and locked in seated position, and an apparatus for seating and locking, or unlocking and unseating, the plug, and a method of doing so.... | 04/26/1977 |
| 3991791 | Bayonet-type closure for line stopper fittings An assembly for closing a side opening in a pipe and including a fitting attached to the pipe and having a tubular portion aligned with the opening and a completion plug inserted into the tubular portion to seal the opening from the exterior of the pipe. ... | 11/16/1976 |
