Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4204299 | Replaceable tip for desoldering tools A replaceable tip assembly for desoldering tools includes an end cap and a nozzle tip in the end cap. The end cap has a frustoconical front portion and a rear cylindrical portion, both being concentric with the central axis thereof. The end cap has a cent... | 05/27/1980 |
| 4193160 | Solder evacuation unit A solder evacuation system for removing molten solder from multiple holes in a printed circuit board. The system comprises a hollow cup assembly adapted to contact the printed circuit board. The cup assembly includes a resilient mouth adapted to contact t... | 03/18/1980 |
| 4184226 | Apparatus for discharging drilling debris, drilling dust and the like, more particularly during the drilling operation in the case of hand drilling machine A device is provided for use with a hand drilling apparatus having a drill bit for discharging the debris formed by drilling into an object, said device comprising a chamber means positioned with respect to said drilling apparatus such that said chamber m... | 01/22/1980 |
| 4180887 | Vacuum-cleaner attachment A vacuum-cleaner attachment includes a mouthpiece and a suction nipple which communicates with a suction space bounded by the mouthpiece. Two stub shafts mount the mouthpiece on the suction nipple for relative pivoting, and an elastic element is interpose... | 01/01/1980 |
| 4163650 | Portable electronic precipitator A portable electronic precipitator includes a two-stage type electrostatic percipitator mechanism mounted in a portable cabinet such as a wheel-mounted cabinet. The two stage type electrostatic percipitator is mounted in a vertical position with the inlet... | 08/07/1979 |
| 4161802 | Drapery and drapery pleat cleaning tool head The hand-held tool head assembly comprises a housing connected to a flexible vacuum hose to a source. The housing has an elongated front wall with a plurality of openings defining a suction surface. An intermediate portion of this wall is cut-out and form... | 07/24/1979 |
| 4151628 | Cleaner bottom plate configuration A cleaner bottom plate is provided by a one piece molded configuration which includes an integral front sealing bead and a double flanged rear wall.... | 05/01/1979 |
| 4120070 | Cleaning system A cleaning system comprises a conveyor and an air knife having a number of side-by-side, closely-adjacent slots which provide communication from an internal chamber to a forward edge. As a result, air charged into the chamber issues from the slots as a sh... | 10/17/1978 |
| 4114230 | Deflator-inflator attachment A nozzle attachment for use in combination with a vacuum cleaner to inflate or deflate air expandable articles, a portion of the nozzle having a relatively large diameter for coupling with the free end of a flexible hose, a relatively small extended tip p... | 09/19/1978 |
| 4084525 | Method of forming a hermetically sealed container and the tools used therewith A method and tools for forming a hermetically sealed container from a previously used can characterized by removing a portion of a top of a can radially inward of an inward edge of an annular depression of the top to form an opening, placing a continuous ... | 04/18/1978 |
| 4053962 | Suction-cleaning dust retriever A vacuum-cleaner nozzle attachment comprises an elongated tube having an oblong cross-sectional shape over an outer, working section thereof and a round cross-sectional shape over an inner section. At an outer working tip thereof an opening defines an ang... | 10/18/1977 |
| 4011624 | Cordless vacuum cleaner A battery-operated vacuum cleaner is described which includes a first module including a source of power such as a plurality of battery cells and a second module including a motor, fan, filter and dirt receptacle. The first module may alternatively includ... | 03/15/1977 |
| 3971098 | Gutter cleaning nozzle In abstract, a preferred embodiment of this invention is a device for cleaning gutters without having to use stepladders or other elevating means. This invention is in the form of a novel nozzle used in conjunction with wet/dry vacuum systems.... | 07/27/1976 |
| 3949442 | Vacuum cleaner heads A head of a vacuum cleaner of the type adapted for cleaning the floor and walls of pools such as swimming pools by movement of the head over, whilst being slightly spaced from, the floor of the pool whilst subjected to suction, having at least one section... | 04/13/1976 |
| 3940817 | Anti-clamping suction head for sweeping swimming pools A suction head for use in vacuum cleaning a swimming pool bottom intended to avoid clamping of the sweep to the pool bottom. A generally rectangular flexible platform is supported for forward and backward motion perpendicular to the longitudinal axis of t... | 03/02/1976 |
