Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 5120188 | Fork stabilizing device An anti-rattle lower hanger is provided for mounting a lift truck fork to the lower carriage member of a lift truck. The lower hanger has a first end mountable to the shank of a lift truck fork and a raised lip spaced apart from the first end to define a ... | 06/09/1992 |
| 5103740 | Vehicle for road and rail operation with air suspension for adjusting weight on both the road wheels and rail wheels A vehicle adapted for operating on roadway and railway includes a frame, a plurality of roadwheels and at least two pairs of retractable railwheels. The rear railwheels are mounted to the frame by means of an adjustable suspension arrangement which is ada... | 04/14/1992 |
| 5104550 | Oxidation and photooxidation process An improved oxidation and photooxidation process for treating water containing an oxidizable contaminant. In one embodiment, the organic compound does not have an electron donating aromatic group. A stochiometric excess amount of a calcium salt is added t... | 04/14/1992 |
| 5102124 | Barbell Exercise apparatus comprises a mounting member in the form of a bar and weights for location at the ends of the mounting member. Each weight has a substantially planar base and a mounting channel above the centre of gravity of the weight. The bar has moun... | 04/07/1992 |
| 5101937 | Self centering elevator cable safety brake An elevator cable safety brake is disclosed. The brake includes a first housing which is slidably mounted in a second housing. The first housing has an opening through which the elevator cables can pass. On one side of the elevator cables is located a fir... | 04/07/1992 |
| 5096197 | Card deck shuffler A card deck shuffling device has a chute for receiving and guiding a deck of cards. The chute has an upper chamber and a lower chamber divided by a gate mechanism. The gate mechanism is moveable between closed, partially open and completely open positions... | 03/17/1992 |
| 5084224 | Method for making hearing aid vent passage A method for producing a vent passage for an in-the-ear hearing aid shell. One or more vent holes are drilled in the shell, and a vent tubing having a copper core is laid against the shell interior wall extending through the vent holes. Electricity is pas... | 01/28/1992 |
