Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7318443 | Pagoda-shaped umbrella A pagoda-shaped umbrella includes a center post, a crown fixed to an upper end of the center post, a runner movable along the center post, a plurality of ribs each coupled to the runner by a stretcher, and a canopy supported by the ribs. A canopy retainer is mounted... | 01/15/2008 |
| 7255119 | Slim safety runner and multiple-fold umbrella thereof A slim safety umbrella runner includes a push button having a pivotal portion formed on a bottom portion of the push button and insertably engaged in a pivotal cavity formed in a bottom rim of the runner, with the push button pivotally biasing a resilient protrusion... | 08/14/2007 |
| 7185665 | Golf bag umbrella An umbrella for use in a golf bag for protecting items stored in the golf bag, the umbrella comprising: a telescopic shaft including an upper sliding tube, and a lower support tube for slidingly receiving a portion of the upper sliding tube, the lower support tube h... | 03/06/2007 |
| 7178535 | Umbrella with improved hub An improved umbrella includes a durable hub including a number of spherical rotating joint knuckles captured in a hub body. The joint knuckles provide rotational movement of rib and spreader elements which support a flexible umbrella cover. The joint knuckles provid... | 02/20/2007 |
| 7174906 | Foldable umbrella frame having six ribs The invention relates to a foldable umbrella frame having six ribs, wherein the first rib, the second rib, the third rib, and the fourth rib are formed to be solid rods with outer flat portion. The ribs are pivoted to form a frame. Branch ribs have inner hooks to co... | 02/13/2007 |
| 7111633 | Pipeline welding shelter and method of use of the same A pipeline welding shelter which includes an umbrella-like framework with a support post which supports the umbrella-like framework. Means is provided for maintaining the support post in a substantially vertical orientation when positioned on or adjacent to a pipeli... | 09/26/2006 |
| 6626198 | Resilient stave support assembly for umbrella An umbrella a fixed ring secured on top of a rod, a middle ring and a lower ring slidably engaged on the rod, a number of main staves having inner ends rotatably securing to the middle ring, a number of upper staves pivotally coupled between the fixed rin... | 09/30/2003 |
| 6234186 | Canopy frame for umbrella of various shapes A canopy frame for umbrellas has a structure adapted for various shapes, making the appearance of umbrellas dexterous and interesting. The frame has a main shaft, an upper sliding notch, a lower sliding notch, multiple positioning ribs, multiple upper spr... | 05/22/2001 |
| 5884645 | Collapsible sunshade A collapsible sunshade includes a frame and a top cover which is mounted on the frame. The frame includes a shaft which has an outer tube and an inner tube that is telescopically inserted into the outer tube. A runner assembly is sleeved on the outer tube... | 03/23/1999 |
| 5878763 | Canopy supporting structure for a bi-section foldable umbrelia An improved canopy structure of a bi-section foldable umbrella is provided with an integrally formed slide block having an upper slider and a lower slider. A fixing mount is integrally connected to the top of the upper slider. The fixing mount, the upper ... | 03/09/1999 |
| 5871024 | Umbrella frame and umbrella for outdoor furniture The umbrella frame is provided with a movable yoke at the upper end and a stationary yoke at an intermediate point. Ribs are pivotally mounted on the movable yoke and struts are pivotally mounted on the fixed yoke while being pivotally mounted to intermed... | 02/16/1999 |
| 5711333 | Umbrella frame and umbrella for outdoor furniture The umbrella frame is provided with a movable yoke at the upper end and a stationary yoke at an intermediate point. Ribs are pivotally mounted on the movable yoke and struts are pivotally mounted on the fixed yoke while being pivotally mounted to intermed... | 01/27/1998 |
| 5533541 | Automatic umbrella with multiple operation modes An automatic umbrella including an inside cap at the top of the umbrella shaft thereof, a top runner mounted around the umbrella shaft, an open control spring mounted between the inside cap and the top runner and compressed to preserve energy for opening ... | 07/09/1996 |
| 5309933 | One-hand openable and closable umbrella There is disclosed a one-hand openable and closable umbrella which does not cause relative rotational movement and displacement between an inner shaft and an outer shaft. The inner shaft has a U-shaped groove extending in the lengthwise direction thereof ... | 05/10/1994 |
| 5305770 | Outdoor umbrella An umbrella which opens into a noteworthy enlarged expanse due to outer fabric-supporting struts being urged through sliding movement along inner fabric-supporting struts, so that the two fabrics cooperate to provide the enlarged expanse to the umbrella.... | 04/26/1994 |
| 5232004 | Automatic umbrella having wind-resistant buffer effect An automatic umbrella includes: a central shaft, a plurality of ribs secured with an umbrella cloth and pivotally secured to the central shaft, an umbrella-opening spring, an umbrella-closing spring, and a control device having a resilient retainer slidab... | 08/03/1993 |
| 5224505 | Automatic umbrella with upwardly and downwardly thrusted push button An automatic umbrella includes: a central shaft, a plurality of umbrella ribs, an umbrella-opening spring, an umbrella-closing spring, and a control device having a push button which may be pushed upwardly for opening the umbrella and may be pushed downwa... | 07/06/1993 |
| 5085239 | Structure of safety umbrella An umbrella, having a cover stretched over a plastic folding radial frame which comprises upper, intermediate and lower nest plates respectively mounted on a main shaft for securing a plurality of ribs. The nest plates are identical in structure, each com... | 02/04/1992 |
| 5063952 | Self opening umbrella An improvement in self-opening umbrella frames having either a one-piece or elescopic stick and a main slide and an auxilary slide on the stick to operate the a frame-rib structure which is opened automatically by a coil spring compressed between these two... | 11/12/1991 |
| 4641675 | Sport's cap umbrella An umbrella configured in the shape of a cap, having a main canopy from which extends about a portion of the lower perimeter a brim canopy when in opened and extended position. The brim canopy folds upwardly against the main canopy as it is closed.... | 02/10/1987 |
| 4105039 | Shortenable umbrella A shortenable umbrella with blades carrying the umbrella canopy, the blades being shortenable by telescoping and/or folding, wherein the innermost blade parts are pivoted on a crown secured on the shortenable rod assembly. The blades are horizontally pivo... | 08/08/1978 |
| 4077421 | Shortenable umbrella A shortenable umbrella with frame or blade parts carrying the umbrella canopy in opened condition, the frame parts being shortenable at least by a factor of two by telescoping or folding, of which the innermost parts are pivoted on a crown secured on a sh... | 03/07/1978 |
| 4007753 | Folding umbrella A folding umbrella of the type in which a lower section closes upon an upper section, as both these sections close upon the umbrella rod, and wherein this closing movement is automatically achieved, i.e. is the result of articulating or pivotal movement o... | 02/15/1977 |
| 3949962 | Collapsible umbrella concrete form A collapsible and reusable umbrella concrete form for casting a concrete shell roof in the form of a dome, the collapsible umbrella form comprising a central stem or column equipped with a base, a jack abutment plate for vertically adjusting the stem in r... | 04/13/1976 |
