Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7339755 | Ring device with optical focusing mechanism A ring device is adapted for wearing on at least one finger of a user. The ring device includes a wearable main body portion and an optical member that is moveably affixed thereto. The optical member can be positioned in at least two positions: a viewing position, a... | 03/04/2008 |
| 7287851 | Eyewear frame and storage mechanism The present invention improves existing eyewear frames to provide a secure and convenient means for storage and transport of eyewear when it is not being worn on the face. The eyewear frames contain rimless or semi-rimless lenses, which may be, for example, prescrip... | 10/30/2007 |
| 7277241 | Machine for optical assistance in reading checks A machine for magnifying a check with a freshnel lens, a front cover and back cover hingably connected, to hold a credit card bill or restaurant check, to hold a credit card, to hold a writing utensil, and to illuminate the credit card bill or restaurant check. ... | 10/02/2007 |
| 6775075 | Lines on paper magnifying glass The invention discloses a magnifying assembly that may be clamped on printed sheets or pages in a book. The assembly consists of two part. One part is an elongated magnifying glass having a flat bottom and half circle shape top. The other part is a holding element t... | 08/10/2004 |
| 6721109 | Text magnifying device A text magnifying device including a magnifying cavity having an upper surface, a lower surface, and a pair of sides. The upper surface and lower surface are convex. A pair of elevational bars, each have an inner surface, and are attached to and extend longitudinall... | 04/13/2004 |
| 6144505 | Optical component, method of molding optical component, and mold for optical component This invention provides an optical component free from weld formation in its optical surface and having an excellent optical performance, a method of molding an optical component, and a mold for molding an optical component. For this purpose, an optical c... | 11/07/2000 |
| 5694256 | Optical reading device An optical reading device is provided with a rod-shaped lens body having a first and a second pair of side surfaces extending in the longitudinal direction of the rod and, in pairs, disposed opposite of one another. At least one side surface of the first ... | 12/02/1997 |
| 5369527 | Melanoma detection device An apparatus and method for detecting indications of skin cancer, includes a magnifying glass for magnifying a lesion on an area of skin to be tested and indicia for determining the presence or absence of skin disease indications. The magnifying glass and... | 11/29/1994 |
| 5311365 | Combination tool A combination tool providing an ability to inspect a gem or an item of jewelry under magnification for viewing, appraising and identification of flaws. The combination tool is lightweight, portable, and can easily be held and used with one hand. The tool ... | 05/10/1994 |
| 5218482 | Article with strap for magnifying fingernails and toenails An article for magnifying the visual image of a fingernail or toenail wherein the article comprises a supporting strap for removably securing the article to a hand or foot, a rod having one end connected to the supporting strap and the other end connected... | 06/08/1993 |
| 5191480 | Optical accessory for digitizer cursors An accessory for improving the accuracy, and/or facilitating the use, and/or improving aesthetics and/or ergonomics of digitizer cursors is disclosed. The accessory mounts an optical element to the position-sighting aperture on the cursor. In all embodime... | 03/02/1993 |
| 5183193 | Wrist mounted map holder apparatus An elastomeric sleeve, including a transparent pocket, receives a map therewithin for ease of visual observation by an individual engaged in vehicular transport for example. The invention further includes support apparatus for mounting a magnifying lens a... | 02/02/1993 |
| 5087112 | Optical magnifier apparatus A magnifying assembly of the type employing a lens surrounded by a plastic or metal holding is placed in a light diffuser, which light diffuser is an annular member having an open top which is associated with a peripheral flange upon which the magnifying ... | 02/11/1992 |
| 4147411 | Device for use in threading needles A device to assist in threading needles includes a holder which is manually supported and which provides a support for a magnifying glass. A needle is detachably mounted in the holder with the eye exposed. The device includes means for varying the spacing... | 04/03/1979 |
