...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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 |
| 7178806 | Cinchpac self-loading rotary shaft seal A seal for a conveyor drive which has an elastomer which is compressed between a cap ring and a housing. ... | 02/20/2007 |
| 7070017 | Rotating apparatus for construction machine A swing mechanism for a construction machine having a grease bath seal. A grease bath can be disposed on a vehicular base carrier of the machine, and can be coupled with a swing frame. The grease bath seal can then act to prevent intrusion of pollutants or other for... | 07/04/2006 |
| 6467964 | Self cleaning bearing assembly for use in a dehydrator or washer for particulate solids A self cleaning bearing assembly for use in a dehydrator washer for particulate solids which comprises a feed reservoir for water and particulate solids and an inclined main screw conveyor having a projecting shaft lower end portion submerged in the reser... | 10/22/2002 |
| 6296990 | Gas bearing and lithographic apparatus including such a bearing A gas (air) beating in a ceramic body is made using a separate restriction member to define the air restriction feature. The separate member may be a metal bushing in which an insert is fitted, the insert having an opening defining the actual restriction ... | 10/02/2001 |
| 5437509 | Bearing and seal assembly for trencher endless chain drives The disclosure is directed to a bearing and seal assembly apparatus for a endless chain drive for trenchers. The disclosure is particularly directed to the use of such an apparatus in trenchers used in rock or hard packed soils. The apparatus of the prese... | 08/01/1995 |
| 5085521 | Squeeze film damper seal Shaft damper bearing utilizing spaced apart piston ring seals to seal off an annular squeeze film space between the rings, includes diagonal surface cross-section ring grooves in the bearing housing with diagonal cross-section rings in the housing grooves... | 02/04/1992 |
| 5011301 | Auxiliary sealing system An auxiliary sealing system generally includes a flexible sealing ring, with an optional restraining element, such as a metal band, secured therearound for further fastening same to a given circular member. Such circular member may comprise an extension o... | 04/30/1991 |
| 4854743 | Rear seal assembly for a chamber holding a partially frozen beverage The present invention includes a rear seal assembly that holds and seals a rotatable shaft extending through the cooling chamber and extending axially outboard through a rear wall in the cooling chamber. In the interior of the cooling chamber, the seal as... | 08/08/1989 |
| 4600318 | Thrust bearing and seal assembly Accelerated wear of the seal in a thrust bearing and seal assembly is avoided by the provision of a bearing having a thrust bearing pad engaging a shoulder on a shaft with the inner diameter of the bearing being spaced from the shaft sufficiently to defin... | 07/15/1986 |
| 4556239 | Arrangement at a shaft seal An arrangement at rotating shafts with a wheel fixedly mounted to the shaft, which wheel rotates in a housing surrounding the wheel, an essentially pipe-shaped element surrounding the shaft, an with essentially axially sealing surface provided sealing dev... | 12/03/1985 |
| 4368933 | Housing of a bearing with a pressure-compensating arrangement In a housing bearing composed of two parts connected to each other to form a chamber receiving a bearing a pressure-compensating valve is provided which includes an enclosure secured to the housing and having an internal wall, and a cover connected to the... | 01/18/1983 |
| 4200345 | Large-diameter dust guard for a locomotive axle bearing The axial gap between the rotatable hub of a locomotive wheel and the relatively stationary thrust flange of an adjacent axle bearing is covered by a dust guard comprising an annular band of elastomeric material firmly secured to the circumference of the ... | 04/29/1980 |
| 4076345 | Sealed joint construction A sealed joint including a first member having a shaft affixed thereto, a second member having a bore receiving the shaft, an annular groove in the first member about the shaft and facing the second member, an annular seal in the groove, a sleeve within t... | 02/28/1978 |