Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 5809589 | Shower curtain retainer A shower curtain retaining device which will hold the curtain away from the person using the shower. It has a pair of attachments which are secured to the adjacent portions of a shower stall or bath tub enclosure and to which are attached a sleeve contain... | 09/22/1998 |
| 5782314 | Step ladder organizer A lightweight organizer with upper and lower trays and receptors for supplies and tools which can be mounted on the top platform of a stepladder. No tools are required in the process. The organizer has four sides extending downward and outwardly and opene... | 07/21/1998 |
| 5724992 | Intra-operative body immobilizer A body immobilization and support device including a generally rigid shell having a back portion which is generally contoured to the back of a patient, and having side engaging portions and shoulder engaging portions to immobilize and support the patient ... | 03/10/1998 |
| 5692763 | Swing-powered vehicle A swing propelled vehicle, having a frame set on wheels, a swing device, a steerable axle, and a braking wedge to prevent the wheels from turning in more than one direction. The vehicle is propelled by the momentum generated by the swinging motion, and th... | 12/02/1997 |
| 5692731 | Safety device for hydraulic engine hoist A conventional hydraulic engine hoist equipped with a pair of support arms attached to the frame members of the hoist. One of the support arms is fixedly attached to a vertical frame member and the other support arm is attached to a horizontal fame member... | 12/02/1997 |
| 5692238 | Body comforter A garment having pockets or other enclosures capable of mounting cooling packs such as gel packs therein. Thermally sensitive indicators, such as sensitive color gauge strips, are used to display the packs current effective temperatures. Thermal garment o... | 12/02/1997 |
| 5692234 | Clip-on glasses/shield for caps with bills Eyewear including a clip body adapted to be attached to a bill of a cap and an eyepiece rotatably mounted to the clip body. The eyepiece may be rotated from an in use position to a flipped up storage position and intermediate positions. The eyepiece is al... | 12/02/1997 |
| 5678508 | Easy clean and change litter box machine A pet litter box consisting of a box with a pair of hoppers. One of the hoppers is used to clean the litter box and has a mesh bottom for screening out solid waste from the litter. The other hopper is used for changing the litter and is the same as the cl... | 10/21/1997 |
| 5678474 | Apparatus for making and cooking meatballs An apparatus for preparing meatballs which comprises a meatball forming device and a meatball cooking device. The meatball forming device comprises a housing, which has a top opening communicating with a lower output tube. Between the top opening and the ... | 10/21/1997 |
| 5626443 | Convex-concave hobs A pair of complimentary gear cutting hobs including a convex hob having a plurality of hob teeth, with each hob tooth defining on opposite sides thereof cutting edges having a convex shape. The convex shape is defined by an arc with a center of radius whi... | 05/06/1997 |
