Emergency locator beacon for skis

• US 4,279,433 A
• Filed: 04/30/1979
• Issued: 07/21/1981
• Est. Priority Date: 04/30/1979
• Status: Expired due to Term

• Current Assignee: Danny A. Petaja
• Original Assignee: Danny A. Petaja
• Inventors: Petaja, Danny A.
• Primary Examiner(s): Peters, Jr., Joseph F.
• Assistant Examiner(s): MAR, MICHAEL Y
• Application Number:
  US06/035,030
• Time in Patent Office: 813 Days
• Field of Search: 280/604, 280/605, 280/809, 280/816, 280/819, 180/272, 180/273, 180/290, 116/84, 116/86, 116/100, 116/DIG. 11, 340/547, 340/568, 340/571, 340/573, 340/574, 340/321
• US Class Current: 280/605
• CPC Class Codes: A63C 11/003 Signalling devices, e.g. acoustical or visual A63C11/225 takes precedence; means for indicating the location of accidentally snow-buried persons A63B29/021
• CPC Class Codes: A63C 7/1093 Details
• CPC Class Codes: A63C 9/088 with electronically controlled locking devices
• CPC Class Codes: Y10S 116/11 On ski binders

Abstract

A beacon device locates ski equipment such as skis and ski poles which has been separated from a skier. The device includes a signaling device such as a strobe light mounted in or to the equipment which is activated by a trigger mechanism operative to sense the separation of the ski equipment from the skier. Various alternative trigger mechanisms are provided including optically actuated, mechanically actuated and magnetically actuated devices. A strobe light reflector is provided which always directs light upward. The beacon device is particularly useful in locating ski equipment buried in powder snow.

Claims

1. A device for locating ski equipment separated from a skier comprising:

an electrical signaling device for emitting visible light, said signaling device having a light intensity sufficient to be visible through snow to establish location of said signaling device;

circuit means coupled to said signaling device for powering said signaling device, said circuit means being operative to intermittently discharge said signaling device upon triggering;

means for housing said signaling device and said circuit means, said housing means being adapted to be carried by said ski equipment; and

means operative to sense separation of said skier from said ski equipment including said housing means for triggering said circuit means upon said separation.

2. The locating device as claimed in claim 1 wherein the ski equipment is a ski and wherein said signaling device is a strobe light and wherein said housing means includes a window adjacent said strobe light.

3. The locating device as claimed in claim 2 further including a parabolic reflector and wherein said strobe light is mounted in said parabolic reflector.

4. The locating device as claimed in claim 3 further including axis pins and wherein said reflector is mounted to said axis pins and is rotatable about said axis pins.

5. The locating device according to claim 4 further including weight means connected to said parabolic reflector in a manner biasing said reflector to direct light upward.

6. The locating device as claimed in claim 1 wherein the ski equipment is a ski having a binding with a boot detachably mountable to the binding, and wherein said housing means comprises an enclosure fixedly attached to the ski and wherein said triggering means comprises means for sensing separation of the ski from the ski boot.

7. The locating device as claimed in claim 6 wherein said separation sensing means comprises an optical sensing device and means for blocking ambient light input to the optical sensing device except when the boot is detached from the binding.

8. The locating device as claimed in claim 1 wherein the ski equipment is a ski pole having a grip and a hollow shank, wherein said housing means comprises a cavity in said shank and said signaling device is a strobe light, said device further comprising a port window adjacent said strobe light in said shank, and wherein said triggering means comprises means for sensing the separation of a skier'"'"'s hand from the grip.

9. The locating device as claimed in claim 14 wherein said sensing means comprises a passage in a portion of the grip which is normally blocked by the palm of the hand and an optical sensing device coupled to said circuit means which is disposed within the grip to receive ambient light through said passage.

10. The locating device as claimed in claim 7 or claim 9 further comprising a fiber optic light transmission line coupled to said optical sensing device for directing ambient light to said optical sensing device.

12. The locating device as claimed in claim 7 wherein said boot movement sensing means comprises a line attachable to the boot, wherein said magnet is a slug, and wherein said magnetic sensing means comprises a clip adapted to slideably hold said slug, said clip being mounted to an exterior side of said housing, and a magnetically sensitive reed switch mounted on an interior side of said housing adjacent said clip such that said clip can hold said slug within said effective proximity to said reed switch.

13. The locating device as claimed in claim 7 wherein said boot movement sensing means comprises a stirrup-shaped spring wire pivotally mounted to the ski and having said magnet mounted to said wire, said wire being moveable between a first position under compression by the boot with the magnet confronting said magnetic sensing means, and a second position with the magnet separated from said magnetic sensing means, the wire being biased to said second position, and wherein said magnetic sensing means is mounted to the ski under the heel of the boot.

14. The locating device as claimed in claim 7 wherein said boot movement sensing means comprises a movable element of a ski brake.

15. The locating device as claimed in claim 7 wherein said boot movement sensing means comprises a magnet attached to said boot and a read switch attached to said ski.

16. The locating device as claimed in claim 7 wherein said boot movement sensing means comprises a ski brake having a braking element, said braking element being movable between a first disengaging position adjacent the ski and a second position and wherein said magnet is mounted to said braking element and said magnet sensing means is mounted to said ski at a location confronting said magnet when said braking element is in said first position.

11. A device for locating ski equipment separated from a skier comprising:

an electrical signaling device;

circuit means coupled to said signaling device for powering said signaling device, said circuit means being operative to intermittently discharge said signaling device upon triggering;

means for housing said signaling device and said circuit means, said housing means being adapted to be fixedly attached to a ski;

means operative to sense separation of the ski from a ski boot for triggering said circuit means upon said separation;

said triggering means comprising first means adapted to contact the boot for sensing movement of the boot, a magnet in said movement sensing means, switch means coupled to said circuit means and attached to the ski for signaling the displacement of said magnet, said magnet being adapted to be disposed within an effective proximity of said magnetic sensing means only when the boot is normally attached to the ski.