Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7350837 | Door jam security device and method of using same The invention is a special bar assembly that could be easily installed on a steel door of a commercial building. The invention comprises a permanent door piece, door mounting hardware, and a lock piece assembly. The secure bar when in a locked position will keep the... | 04/01/2008 |
| 4964659 | Diaphragm latch mechanism A latching mechanism is provided for enabling perimeter locking for doors and the like. A diaphragm is provided which engages a surrounding frame along the perimeter of the diaphragm. Slots in the diaphragm enable a reduction of the diaphragm perimeter by... | 10/23/1990 |
| 4664431 | Apparatus for closing and reopening the cover for a container For use with a container with a removable cover at the top opening, at least one pair of cover tightening members are pivotally linked with each other and are mounted to the cover so that they can be operated to tighten the cover to the container or relea... | 05/12/1987 |
| 4634158 | Door brace assembly A brace assembly for a door including an elongated brace bar hingedly mounted at one end to the door frame to permit the brace bar to swing about two perpendicular axes, and means for securing the other end of the brace bar to the door frame when the brac... | 01/06/1987 |
| 4498695 | Pressure cooker lid latch and lock A latching mechanism and pressure-operated safety lock for a pressure vessel such as a pressure fryer, the invention positively locks a lid of a pressure fryer over the cooking pot by means of a latch mounted on the distal end of a bar which centrally eng... | 02/12/1985 |
| 4461597 | Valve box cover A cover capable of being both locked in position within a valve box or manhole cover and lifted upwards to assist in its removal, having a rotating bolt therein which maneuvers a lever base upwards or downwards which lever base causes the rotation of a lo... | 07/24/1984 |
| 4322101 | Adjustable spring latch for coke oven doors or the like An adjustable spring latch for doors of coke ovens or the like. The latch includes springs which urge the door into tight engagement with the jamb. The force exerted by the springs can be adjusted by turning a spindle. The latch also includes sight pins w... | 03/30/1982 |
| 4310187 | Door securing mechanism A mechanism for securing a door to a door frame includes a plurality of generally C-shaped clamps rotatably secured about the door's periphery, each of the clamps including a rear radial clamp leg engageable with the rear of the door frame, a forward radi... | 01/12/1982 |
| 4214518 | Meat tumbler Apparatus for treating meat comprises introducing pieces of meat into a tumbling drum rotatable about a horizontal axis and which contains circumferentially spaced rods on the inside of the drum adjacent to its periphery and parallel to the axis of rotati... | 07/29/1980 |
| 4145259 | Closure members A closure for an opening into a combustion chamber or a distillation chamber which tightly seals said opening. The closure has a central portion with a lip at its periphery having at least one sealing surface thereon. A member adjacent to the opening has ... | 03/20/1979 |
| 4089551 | Quick-release gas cap latch retainer device A latch retainer device for preventing the accidental opening of a quick-release gas cap and including a clip for fitting over and engaging the gas cap hinge, a loop for fitting over and engaging the gas cap release handle, a stud attached to the loop and... | 05/16/1978 |
| 4073239 | Closing means for a hatch cover A hatch cover having a locking mechanism comprising a single hand wheel with a shaft threaded to the cover for limited up and down movement as the hand wheel is turned. A locking strap is hinged on one side of the hatch cover, releasably locked on the oth... | 02/14/1978 |
| 4061382 | Door locking mechanism for coke oven door A bolt has an inner end threaded into a door body. A sleeve surrounds the bolt, and a locking bar surrounds the sleeve. A spring is supported by the bolt and urges the sleeve and locking bar toward the outer end of the bolt. A nut is threaded onto the out... | 12/06/1977 |
| 4044918 | High temperature, quick access door for high vacuum chambers A door for an ultra-high vacuum chamber is disclosed which includes a sealing joint that maintains a hermetic seal when it is baked or otherwise subjected to high temperatures, while yet allowing an operator to have quick access into the interior of the c... | 08/30/1977 |
| 3980328 | Doorbar system Improvement in a doorbar device for barring the door of a doorway, the doorway having doorjambs and a door therefor, the door having a doorknob, the doorbar device comprising a doorknob constructed to be affixed to the doorjambs of the doorway to extend a... | 09/14/1976 |
| 3953063 | Coke oven door closure A door closure includes a spring bearing member on a door body. A spring is positioned in the spring bearing member and urges a locking bar and locking bar support outwardly thereof into locking engagement with locking hooks. The spring bearing member is ... | 04/27/1976 |
