In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 8061062 | Modular snow travel system for common footwear A snowdeck includes a latching mechanism for detachable mounting to a traction component such as a boot. The latching mechanism includes a base member which is mounted to the snowdeck and which has a recess for accommodating a longitudinal slider which is movable lo... | 11/22/2011 |
| 8020321 | Snowshoe footbed pivot system A snowshoe having a pivot axle for pitch rotation of the footbed platform relative to the snowshoe frame is supported from the frame in a manner that provides for significant lateral flexing, i.e. pivoting on the roll axis, to accommodate use of snowshoes on side hi... | 09/20/2011 |
| 7984572 | Snow shoes of the type whose webbing includes a stretched fabric in the interior of a frame A snowshoe (1) whose webbing includes a flexible wall (4) maintained in tension inside a framework (2) by portions of the flexible mounting wall which define flexible mounting projections. Supplemental protection parts (8) are disposed su... | 07/26/2011 |
| 7937855 | Snowshoe The snowshoe defines opposite front and rear ends, opposite first and second sides and opposite top and bottom surfaces and comprises a rigid peripheral frame member comprising a top portion corresponding to the top surface of the snowshoe and a bottom portion corre... | 05/10/2011 |
| 7908773 | Snowshoe of the type in which the decking includes a peripheral frame A snowshoe (1) made of a frame (2) holding a deck (3) meant to hold the user's boot, the aforementioned boot being held on the deck by a binding, characterized in that the snowshoe includes a transverse retaining element (4) extending tra... | 03/22/2011 |
| 7716855 | Mounting for retaining a boot on a snowshoe A snowshoe (1) includes a binding (4) intended to retain the boot of the user and a plate pivoting around a transverse pivot axis (X, X′) including a retaining assembly for the boot. A longitudinal position of the rear retaining assembly is adjustabl... | 05/18/2010 |
| 7661207 | Snowshoe binding without heel strap A snowshoe binding engages the sole of the user's boot in a region between the arch and the widest part of the sole, gripping the sole laterally and sufficiently firmly that the boot will not pull out of the binding during use of the snowshoe, even in the absence of... | 02/16/2010 |
| 7509757 | Single-pull binding for a snowshoe A boot binding for a snowshoe, suspended within the snowshoe for flexibility of the boot relative to the snowshoe in the pitch direction, has a binding footbed that is flexible and allows bending of the boot in the pitch directed, as steps are taken by the user.... | 03/31/2009 |
| 7493709 | Snowshoe An improved snowshoe (49, 138, 220) having a binding (105) attachable to a flotation platform (51). The snowshoe (49, 138, 220) may be adjusted to accommodate to changes in snow conditions and terrain while on a snowshoe excursion. Certai... | 02/24/2009 |
| 7472497 | Snowshoe binding with flexible footbed A boot binding for a snowshoe, suspended within the snowshoe for flexibility of the boot relative to the snowshoe in the pitch direction, has a binding footbed that is flexible and allows bending of the boot in the pitch direction, as steps are taken by the user. | 01/06/2009 |
| 7461471 | Snowshoe binding A binding for securing the boot of a user to a snowshoe has a semi-rigid base with integral boot toe and boot heel control members and flexible upper members of a softer and more compliant material then that of the base connected to the base for embracing the boot u... | 12/09/2008 |
| 7331129 | Snowshoe frame with varied cross section A snowshoe of the type with a peripheral frame formed of metal tubing and a stretched and suspended deck connected to the frame has different regions of the frame partially flattened into an approximate elliptical cross section, the major dimensions of the ellipses ... | 02/19/2008 |
| 7308767 | Perfected device for walking on snow or ice A perfected device for walking on snow or ice consisting of platforms (1) that are fitted on the upper face of the rackets (20) and have a swivel mechanism (6) formed by a spherical or similar piece equipped with axles (22) at the heel en... | 12/18/2007 |
| 7216889 | Bindings for ski boots for snowboards A binding (2) which retains a boot (11) on a snowboard (1) includes a base member (4). Rear walls (8a, 8b) and a rear arch (9) with a rear portion (21) of the base member support a heel of the boo... | 05/15/2007 |
| 7194825 | Snowshoe The snowshoe includes an opened U-shaped frame supporting a semi-rigid decking having a toe hole and a harness pivotally attached to the decking near the toe hole. The absence of a rear tail portion on the frame forms a gap that helps prevent the dragging effect of ... | 03/27/2007 |
| 7150464 | Configurable snowshoe and ski device A device and method are disclosed for a configurable snowshoe and ski device. The device may include a base member having a bottom for traversing over snow, and a plurality of wings rotatably coupled to the member, the wings convertible between a skiing configuratio... | 12/19/2006 |
| 7131660 | Ice carver ski An outrigger edge enhances ability to turn and maintain control of a ski or snowboard on ice or snow. The outrigger edge is provided outside and above the normal edge of a ski so it only makes contact with the snow or ice when the ski is tilted through a sufficient ... | 11/07/2006 |
| 7080850 | Configurable snowshoe and ski device A device and method are disclosed for a configurable snowshoe and ski device. The device may include a base member having a bottom for traversing over snow, and a plurality of wings rotatably coupled to the member, the wings convertible between a skiing configuratio... | 07/25/2006 |
| 7047673 | Step-in snowshoe binding system A step-in binding system (20, 220) including a binding (24, 224) and an engagement member (26, 226) for securing a snowshoe to footwear (22). In one embodiment, the binding includes a pivotable latch (78) and a fixed latch (80 | 05/23/2006 |
| 6981294 | Carpet slide for recreational use A carpet slide for use as a recreational entertainment device includes a first member having a predetermined shape and a predetermined size. The first member is formed from a flexible sheet of material having an upper surface and a bottom surface. An at least one st... | 01/03/2006 |
| 6980881 | Software for improving the accuracy of machines Large machines, especially those having working envelopes in excess of fifteen feet, exhibit unacceptable errors because of thermal expansion and mechanical misalignments between the axes. The errors have traditionally been minimized by enclosing the machine in a th... | 12/27/2005 |
| 6931769 | Snowshoe pivot axle pad A snowshoe has a frame and a pivot axle assembly extending across an opening in the frame for pivotally supporting a boot binding assembly for limited front and rear rotation, a resilient pad is disposed between the pivot axle assembly and the boot binding assembly ... | 08/23/2005 |
| 6898874 | Snowshoe with two degrees of rotational freedom A snowshoe has a pivoted mounting on its boot harness, for rotation about a pitch axis for a first degree of freedom in movement of the user's boot relative to the snowshoe; and provision for a second degree of freedom of motion along a roll axis, allowing the user'... | 05/31/2005 |
| 6814360 | Snowshoe binding A snowshoe binding has a body member which is molded from an elastomeric synthetic material which easily conforms to the contour of a wide range of boot configurations and incorporates a pair of ladder cinch buckles mounted on synthetic straps positioned over the in... | 11/09/2004 |
| 6772542 | Ski system A ski system for allowing a ski to slide in forward motion and grip in backward motion for a variety of people in a cost effective manner. The ski system includes a flat base member having an upper surface and a lower surface, a plurality of gripping members extendi... | 08/10/2004 |
| 6763617 | Inflatable snowshoe An inflatable snowshoe. In its deflated state, it can be flattened and rolled, which allows a pair of these snowshoes to be stored inside the cowling of a snowmobile. The snowshoe consists of a web flotation deck that has a tubular shaped air bladder frame. When inf... | 07/20/2004 |
| 6725576 | Snowshoe with molded tail piece A snowshoe having a tubular frame supporting a flexible deck has a molded tail piece connecting the tail ends of the tubular frame. The tail piece has two dowel members which are angled to form a rear apex, such that the tail ends of the tubular frame extend over th... | 04/27/2004 |
| 6694646 | Snowshoe harness A harness for a snowshoe has straps, buckles and strap slip connections configured such that a single pull will snug the harness down to the boot, both at the toe and at the top of the arch, firmly engaging over the shoe or boot. The straps, which may be ... | 02/24/2004 |
| 6694645 | Lace binding for a snowshoe A binding for a snowshoe has a base secured to a footbed connected to the snowshoe frame, and a tongue piece above the footbed, connected at front to the footbed in a flexible hinge and positioned to engage the top of a user's boot, from the toe to the ar... | 02/24/2004 |
| 6684534 | Step-in snowshoe binding system A step-in binding system (20, 220) including a binding (24, 224) and an engagement member (26, 226) for securing a snowshoe to footwear (22). In one embodiment, the binding includes a pivotable latch (78) and a fixed latch (80), each having a pair of catc... | 02/03/2004 |
| 6564478 | Compactible snowhoes A snowshoe having both a compact stored configuration and a usable configuration is disclosed. A frame of the snowshoes includes a plurality of segments which can be disconnected from each other, folded upon each other, or telescopically inserted into one... | 05/20/2003 |
| 6453581 | Snowshoe crampon system A snowshoe crampon system has toe and heel crampons which are fabricated from strong, hard abrasion resistant material such as stainless steel, titanium, or tool steel, the toe crampon having a depending formed skirt and a trio of tooth pairs depending an... | 09/24/2002 |
| 6401367 | Load-bearing apparatus having shovel A load-bearing apparatus including a raised front portion, the so-called shovel, that maintains the direction of the apparatus while allowing gliding. The lower surface of the shovel includes a protuberance that is oriented substantially along a longitudi... | 06/11/2002 |
| 6401310 | Snowshoe buckle A strap buckle, particularly for use in a snowshoe binding, operates somewhat as a cam lock buckle but instead of exhibiting pinching force on the strap which increases with increased back-pulling force, the buckle's spring loaded lever engages a nipple o... | 06/11/2002 |
| 6367173 | Interface device for sports apparatus A connecting interface device adapted to be fixed on a boot and mounted pivotally on a sports apparatus which procures rear retention when climbing. The device includes a plate to which a boot is fixed, which is pivotally mounted on an axle in relation to... | 04/09/2002 |
| 6363628 | Ergonomic snow shoe binding and method of making the same An improved binding for use with snowshoes and like sport apparatus is disclosed which employs a novel mounting arrangement similar to the calcanean wrapping technique used by athletic trainers to wrap the ankles of athletes, thereby resulting in an ambid... | 04/02/2002 |
| 6256908 | Terrain-engaging cleat for traction enhancement Crampon and snowshoe combinations are disclosed, wherein the crampon or terrain-engaging cleat can be a traditional ice crampon used on a rigid and essentially unbending boot, or a soft boot cleat which engages only the front portion of the boot, forward ... | 07/10/2001 |
| 6233849 | Snowshoe with a rigid central deck member A snow shoe (1) includes a tubular frame (2) defining an interior zone. A deck (4) which is surrounded by the frame is made in part of a film (3). A binding (7) retained on the deck for securing the boot of the user. A central technical bottom piece (15) ... | 05/22/2001 |
| 6195919 | Mountaineering snowshoe The novel snowshoe (400) includes at least one tail extender (404) to provide variable flotation characteristics and traction bars (412) that provide improved side slip protection such as when traversing steep terrain. The snowshoe (400) is thereby especi... | 03/06/2001 |
| 6185846 | Maneuverable snowshoe A snowshoe is described in which both a simple toe strap and a simple ankle strap are connected to a single, large claw plate, wherein the heel of the user's foot is maintained on an upper surface of the decking.... | 02/13/2001 |