Patents Assigned to Mountain Safety Research
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Patent number: 6227218Abstract: A tent (10) includes a fabric shell (12) supported by a plurality of poles (16). The poles (16) are selectively secured to the fabric shell (12) by a plurality of clips (20). Each clip (20) includes a base (26) that is directly sewn or otherwise secured to the fabric shell (12). Each clip further defines a clasp portion (24) that selectively receives a first pole (16a), and which may also selectively receives a transverse second pole (16b). A width defined by the base (26) is preferably wider than a width defined by the clasp portion (24) for enhanced stability.Type: GrantFiled: July 27, 1999Date of Patent: May 8, 2001Assignee: Mountain Safety Research, Inc.Inventor: Terry J. Breaux
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Patent number: 6195919Abstract: 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 especially advantageous for use in back country mountaineering. A three (or more) point attachment mechanism is disclosed for coupling the tail extender (404) to the flotation plate (416) of snowshoe (400) so as to reduce stress on the coupling elements and provide a more secure interface.Type: GrantFiled: April 20, 1999Date of Patent: March 6, 2001Assignee: Mountain Safety Research, Inc.Inventors: Bill Forrest, Jane A. Verrall, Robert Lowry
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Patent number: 5925309Abstract: A method of manufacturing ceramic filter media for water filters involves the steps of mixing a plurality of raw ceramic materials and a plurality of extrusion-aid materials to form a mixture of constituent materials, extruding the constituent materials to form tubular filter media, drying the tubular filter media, and firing the tubular filter media to create ceramic tubular filter media. The step of drying the tubular filter media preferably comprises placing the tubular filter media on top of rotating rollers which dries the tubular filter media evenly and preserves the desired characteristics of the tubular filter media.Type: GrantFiled: August 6, 1997Date of Patent: July 20, 1999Assignee: Mountain Safety ResearchInventors: Osgood J. Whittemore, Chris J. Adams, Daniel J. Vorhis
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Patent number: 5921007Abstract: 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 especially advantageous for use in back country mountaineering. A three (or more) point attachment mechanism is disclosed for coupling the tail extender (404) to the flotation plate (416) of snowshoe (400) so as to reduce stress on the coupling elements and provide a more secure interface.Type: GrantFiled: October 21, 1996Date of Patent: July 13, 1999Assignee: Mountain Safety Research, Inc.Inventors: Bill Forrest, Jane A. Verrall, Robert Lowry
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Patent number: 5656220Abstract: A method of manufacturing ceramic filter media for water filters involves the steps of mixing a plurality of raw ceramic materials and a plurality of extrusion-aid materials to form a mixture of constituent materials, extruding the constituent materials to form tubular filter media, drying the tubular filter media, and firing the tubular filter media to create ceramic tubular filter media. The step of drying the tubular filter media preferably comprises placing the tubular filter media on top of rotating rollers which dries the tubular filter media evenly and preserves the desired characteristics of the tubular filter media.Type: GrantFiled: August 11, 1995Date of Patent: August 12, 1997Assignee: Mountain Safety ResearchInventors: Osgood J. Whittemore, Chris J. Adams, Daniel J. Vorhis
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Patent number: 5531035Abstract: A snowshoe binding (304) which provides improved foot stability is disclosed. The binding (304) includes a heel stabilizing extension (308) and a flexible footwrap assembly (310) which cooperate to stabilize the wearer's foot (316). A motion limiter for limiting the range of pivotal movement of the binding (304) with respect to the snowshoe flotation plate (318) is also disclosed. The motion limiter comprises a protrusion (300) which extends from at least one of the snowshoe traction bars (212) to contact a pivot arm (302) of crampon (214) when a limit angle (A) is reached.Type: GrantFiled: March 10, 1994Date of Patent: July 2, 1996Assignee: Mountain Safety ResearchInventor: Bill Forrest
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Patent number: 5517773Abstract: A variable length snowshoe (200) is provided to accommodate changing snow conditions or snowshoeing applications. The snowshoe (200) includes a flotation plate (202) and at least one detachable tail extender (204). The snowshoe (200) also includes detachable brakes (216) and toothed traction bars (212) to provide improved traction on ice and enhanced forward, rearward and side slipping protection. A de-icing crampon (214) and gripping tabs (210) which facilitate binding strap manipulation are also disclosed.Type: GrantFiled: February 10, 1994Date of Patent: May 21, 1996Assignee: Mountain Safety ResearchInventors: Bill Forrest, Patrick Smith
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Patent number: 5513624Abstract: An apparatus and method for cleaning a fuel delivery system contained within a lightweight, portable, liquid fuel component stove comprising a weighted needle contained within a fuel transmission chamber wherein shaking the chamber causes a cleaning end of the weighted needle to move in and out of an orifice in the chamber, so that the orifice is cleaned and fuel may be effectively transmitted from a fuel source through the orifice and to a burner.Type: GrantFiled: June 29, 1994Date of Patent: May 7, 1996Assignee: Mountain Safety ResearchInventor: Daniel J. Vorhis
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Patent number: 5487833Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.Type: GrantFiled: July 15, 1994Date of Patent: January 30, 1996Assignee: Mountain Safety Research (MSR)Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
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Patent number: 5469643Abstract: A snowshoe (10) which provides improved sideslip protection, forward tracking guidance and overall stability is provided. The snowshoe (10) includes a convex flotation plate (12), side bars (14 and 16), a crampon (18) and a binding (20). The side bars (14 and 16) provide sideslip protection and rigidity which makes it possible to construct the flotation plate (12) from lightweight semi-rigid or somewhat flexible material. Channels (34, 36 and 38) are formed in a rear portion (40) of snowshoe (10) which, together with the convex flotation plate (12) and side bars (14 and 16), enhance forward tracking guidance as well as provide additional rigidity to the somewhat flexible flotation plate (12). The binding (20) includes straps (90, 92 and 94) and a one piece fabric foot wrap (96).Type: GrantFiled: October 22, 1993Date of Patent: November 28, 1995Assignee: Mountain Safety ResearchInventor: William E. Forrest
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Patent number: 5330640Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.Type: GrantFiled: August 18, 1993Date of Patent: July 19, 1994Assignee: Mountain Safety Research, Inc.Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
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Patent number: 5266196Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.Type: GrantFiled: July 19, 1991Date of Patent: November 30, 1993Assignee: Mountain Safety Research, Inc.Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
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Patent number: D446422Type: GrantFiled: April 3, 2000Date of Patent: August 14, 2001Assignee: Mountain Safety Research, Inc.Inventors: William Q. Sumner, Philip R. Hitch
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Patent number: D321550Type: GrantFiled: July 12, 1990Date of Patent: November 12, 1991Assignee: Mountain Safety Research, Inc.Inventors: Kenneth D. Laughlen, Daniel J. Vorhis, Nancy L. Dienes, James F. Fife
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Patent number: D352359Type: GrantFiled: May 21, 1990Date of Patent: November 8, 1994Assignee: Mountain Safety Research, Inc.Inventor: Daniel J. Vorhis