Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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 |
| 7500334 | Access tower An access tower has two mutually spaced side parts extending from a base part to the top part; and inclined cross parts each extending from one side part to the other. The cross parts are arranged one above another and inclined in opposite senses. The cross parts ar... | 03/10/2009 |
| 7299589 | Telescoping boom actuation mechanism formed of concentrically nested tubular boom sections mutually engaged by roller assemblies riding on helical tracks A telescoping boom mechanism for deploying an expandable structure, such a hoop-supported antenna, comprises a plurality of concentrically nestable tubular boom sections, that are mutually engageable with one another by way of roller assemblies and helical tracks fo... | 11/27/2007 |
| 7231741 | Mobile cellular telephone tower A mobile cellular telephone tower comprises a self-propelled base and a tower connected to the base. The tower includes a base segment and at least a first extendable segment operatively connected to a second extendable segment. A winch is connected to the base, and... | 06/19/2007 |
| 7165929 | Load bearing member arrangement and method In the design of load bearing members for use in work machines, it is oftentimes beneficial to minimize the weight of such structures which, in turn, may allow for increased payloads and decreased cycle times of the work machine. A load bearing arrangement for use w... | 01/23/2007 |
| 7062883 | Self guying communication tower A mobile communication tower comprising a trailer comprising a chassis, mounted on two or more wheels, a hitch, a plurality of chassis guy wire attachment points and a plurality of leveling mechanisms; a telescopic tower pivotally mounted on the trailer; a mechanism... | 06/20/2006 |
| 6994171 | Two section mast with self-aligning connections A method of self-aligning connections for a two section mast. The method includes the steps of transporting the elongated bottom mast section to a guide frame adjacent to a well site, the bottom mast section having a pair of front legs and a pair of rear legs. An el... | 02/07/2006 |
| 6951082 | Drilling rig with torque carrier A telescoping rig with an upper mast telescopingly received within a lower mast. A torque carrier is formed of an upper part suspended within the upper mast and a lower part attached to the lower mast. The lower part may be secured to the upper part when the rig is ... | 10/04/2005 |
| 6810937 | Window suspension for vehicle soft top There is disclosed a system for suspending a rigid panel in an opening formed in a barrier structure. The system comprises a sleeve of flexible material having an anchor portion attachable to the perimeter of the opening and a grip portion opposite the anchor portio... | 11/02/2004 |
| 6594960 | Method of folding an articulating mast An articulating derrick having a back face, a pair of opposed sides with each side having at least one leg, and an open face. The back face of the derrick includes a plurality of pairs of back face cross supports. Each cross support has a first and a seco... | 07/22/2003 |
| 5695842 | Entrance grating An entrance grating for office buildings is comprised of a series of closely spaced tread rail elements, forming the upper surface of the grating, and a plurality of support elements underneath the tread rail elements and tightly secured thereto at right ... | 12/09/1997 |
| 5680732 | Lifting and shoring jack assembly A lifting and shoring jack assembly includes a main support assembly having a main column, a jack screw slidably mounted within the main column, and a jack nut engaged with the jack screw and bearing on the end of the main column. A load plate mounted at ... | 10/28/1997 |
| 5634759 | Raising and lowering columns An upper part 30 of a column 28 can be raised and lowered by ram 11 which is normally carried by a counterbalance unit but which can be attached to the column. The rams 11 are mounted on a chassis 10 of the unit by disengageable pivotal mounts 22/23 and a... | 06/03/1997 |
| 5615855 | Telescoping mast with integral payload In an integrated telescoping mast-payload assembly, the payload forms the top telescoping section.... | 04/01/1997 |
| 5524398 | Portable collapsible tower A portable collapsible tower including a frame, at least one stationary tower member fixed to the frame and at least one movable tower member movable along the exterior portion of the stationary tower member relative to the stationary member. A coupling, ... | 06/11/1996 |
| 5168680 | Telescoping tower lock An apparatus comprising a telescoping tower which has a first tubular tower member and a second tubular tower member which are relatively telescoped between an extended position and a retracted position. A first aperture is formed in the first tubular tow... | 12/08/1992 |
| 5152659 | Boom assembly for work machine A boom assembly for a work machine comprising: a pair of first and second members of which one end pivot part is connected pivotally to a base machine and the second end pivot part supports a loading tool pivotally. An inflecting part is provided in the m... | 10/06/1992 |
| 5129199 | Latch for tilting rotatable tower An apparatus comprises a support and a tower pivotally attached to the support and movable relative to said support between a raised and a lowered position. The tower is rotatable to and from a predetermined position about a longitudinal axis thereof when... | 07/14/1992 |
| 4823870 | Cantilever drilling structure A cantilevered drilling structure including a base unit having a side positionable generally adjacent a well head, and a drilling rig mast assembly positioned generally above and supported by the base unit. The base unit has a cantilever member extending ... | 04/25/1989 |
| 4775029 | Collapsible tower boom lift A collapsible boom lift comprised of upper and lower telescoping boom assemblies. The upper boom is pivotally connected to an upright support member which is pivotally connected at its lower end to the lower boom. The upright support member is maintained ... | 10/04/1988 |
| 4684306 | Auxiliary workover rig An auxiliary rig is used in combination with a primary drilling or workover rig. The primary drilling rig typically includes an elongated upstanding drill tower, a base and a crown block. The auxiliary rig of the present invention includes a racking tower... | 08/04/1987 |
| 4655022 | Jointed extendible truss beam A plurality of beams or triangular plates members and beam members form a tetrahedral unit. These units are coupled at their common planes to adjacent facing units to form a foldable, extendible truss beam. Some of the beams are extendible or bendable. By... | 04/07/1987 |
| 4606155 | Angle drilling apparatus Disclosed is an Angle Drilling Apparatus for mobile rotary drills and the like having a mast tower for operating and supporting the drill string. A transferable and adjustable lower pivot support is provided in combination with the normal mast raising cyl... | 08/19/1986 |
| 4594824 | Telescoping tower for floodlighting equipment and the like A telescoping mast assembly for floodlighting equipment or other apparatus is arranged to be raised by admitting pressurized fluid to the interior of the assembly and lowered by releasing the fluid. The assembly is constructed of light metal, such as alum... | 06/17/1986 |
| 4470739 | Auxiliary workover rig An auxiliary rig is used in combination with a primary drilling or workover rig. The primary drilling rig typically includes an elongated upstanding drill tower, a base and a crown block. The auxiliary rig of the present invention includes a racking tower... | 09/11/1984 |
| 4442922 | Adjustable slider bearing assembly The invention provides several embodiments of support assemblies (26,30,32) suitable for use in a lift mast (10). Each support assembly (26,30,32) has two slider bearings (36) for symetrically loading the main loading surface (37) and the inboard and outb... | 04/17/1984 |
| 4420917 | Guyline tension device for communication towers A guyline tensioner for communication towers is provided wherein the towers are of the type having a plurality of nested sections which are raised and lowered by a telescoping action. The device of the present invention provides a guying means so that as ... | 12/20/1983 |
| 4408424 | Telescoping cylinder stabilizer A stabilizer for a telescoping cylinder and rod is disclosed. The stabilizer includes a support body which carries a cylinder rod encircling clamp and a bell crank. The support body and bell crank are moved along a support track by operation of the cylind... | 10/11/1983 |
| 4347692 | Portable drilling rig A portable drilling rig for mounting on a flatbed truck or other carrier vehicle, includes a turntable rotatably mounted on the truck bed; a slide pivotally mounted on the top of the turntable for rotation around a horizontal axis; a hydraulic cylinder in... | 09/07/1982 |
| 4336840 | Double cylinder system Disclosed is a system including two or more fluid pressure piston-and-cylinder assemblies. The cylinders are linked in pairs so that retraction of both piston rods reduces the length of the pair of assemblies to the length of a single assembly. Operation ... | 06/29/1982 |
| 4249600 | Double cylinder system Disclosed is a system including two or more fluid pressure piston-and-cylinder assemblies. The cylinders are linked in pairs so that retraction of both piston rods reduces the length of the pair of assemblies to the length of a single assembly. Operation ... | 02/10/1981 |
| 4231200 | Method and apparatus for assembling a portable tower Method and apparatus for transporting a sectional tower to a selected location and for erecting the tower at the selected location is disclosed. The apparatus includes a mobile trailer bed on which the erection apparatus and the tower sections are transpo... | 11/04/1980 |
| 4185427 | Double cylinder over-center aerial device An aerial device includes a boom support structure, a boom pivotally secured to the support structure, and first and second boom lift hydraulic actuators. The first and second boom lift hydraulic actuators are operated in tandem to raise, lower, and hold ... | 01/29/1980 |
| 4044753 | Solar energy collection system A solar energy collection system including a plurality of energy receivers supported in suspension by an array of radially extending booms above a field of heliostats which serves to reflect a plurality of beams of solar energy toward said receivers. Each... | 08/30/1977 |
| 4027448 | Crane boom with angular side frame reinforcements A particular arrangement of web stiffening members for the extensible and retractable telescoping sections of a crane boom assembly. A series of web stiffening members are secured to each of the side webs of a telescoping boom section, the web stiffening ... | 06/07/1977 |
| 3992831 | Angle drilling apparatus Two pivots are provided on a drill tower support. The drill tower is supported on and positively locked to the upper pivot in the horizontal position. The drill tower can be pivoted about the first pivot from the horizontal position to the vertical positi... | 11/23/1976 |
| 3977139 | Tower having raising and lowering means A tower which is especially useful as a radio antenna tower comprises an elongated antenna pole or mast having reinforcing truss structures on opposite sides thereof comprising triangular trusses at spaced locations. One set of trusses on one side employ ... | 08/31/1976 |
