Patents Assigned to Mountain Safety Research
  • Patent number: 6227218
    Abstract: 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: Grant
    Filed: July 27, 1999
    Date of Patent: May 8, 2001
    Assignee: Mountain Safety Research, Inc.
    Inventor: Terry J. Breaux
  • Patent number: 6195919
    Abstract: 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: Grant
    Filed: April 20, 1999
    Date of Patent: March 6, 2001
    Assignee: Mountain Safety Research, Inc.
    Inventors: Bill Forrest, Jane A. Verrall, Robert Lowry
  • Patent number: 5925309
    Abstract: 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: Grant
    Filed: August 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Mountain Safety Research
    Inventors: Osgood J. Whittemore, Chris J. Adams, Daniel J. Vorhis
  • Patent number: 5921007
    Abstract: 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: Grant
    Filed: October 21, 1996
    Date of Patent: July 13, 1999
    Assignee: Mountain Safety Research, Inc.
    Inventors: Bill Forrest, Jane A. Verrall, Robert Lowry
  • Patent number: 5656220
    Abstract: 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: Grant
    Filed: August 11, 1995
    Date of Patent: August 12, 1997
    Assignee: Mountain Safety Research
    Inventors: Osgood J. Whittemore, Chris J. Adams, Daniel J. Vorhis
  • Patent number: 5531035
    Abstract: 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: Grant
    Filed: March 10, 1994
    Date of Patent: July 2, 1996
    Assignee: Mountain Safety Research
    Inventor: Bill Forrest
  • Patent number: 5517773
    Abstract: 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: Grant
    Filed: February 10, 1994
    Date of Patent: May 21, 1996
    Assignee: Mountain Safety Research
    Inventors: Bill Forrest, Patrick Smith
  • Patent number: 5513624
    Abstract: 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: Grant
    Filed: June 29, 1994
    Date of Patent: May 7, 1996
    Assignee: Mountain Safety Research
    Inventor: Daniel J. Vorhis
  • Patent number: 5487833
    Abstract: 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: Grant
    Filed: July 15, 1994
    Date of Patent: January 30, 1996
    Assignee: Mountain Safety Research (MSR)
    Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
  • Patent number: 5469643
    Abstract: 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: Grant
    Filed: October 22, 1993
    Date of Patent: November 28, 1995
    Assignee: Mountain Safety Research
    Inventor: William E. Forrest
  • Patent number: 5330640
    Abstract: 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: Grant
    Filed: August 18, 1993
    Date of Patent: July 19, 1994
    Assignee: Mountain Safety Research, Inc.
    Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
  • Patent number: 5266196
    Abstract: 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: Grant
    Filed: July 19, 1991
    Date of Patent: November 30, 1993
    Assignee: Mountain Safety Research, Inc.
    Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
  • Patent number: D446422
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: August 14, 2001
    Assignee: Mountain Safety Research, Inc.
    Inventors: William Q. Sumner, Philip R. Hitch
  • Patent number: D321550
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: November 12, 1991
    Assignee: Mountain Safety Research, Inc.
    Inventors: Kenneth D. Laughlen, Daniel J. Vorhis, Nancy L. Dienes, James F. Fife
  • Patent number: D352359
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: November 8, 1994
    Assignee: Mountain Safety Research, Inc.
    Inventor: Daniel J. Vorhis