Extendable sighting device

Claim 1

In a sighting device for attachment to a bow, the sighting device being of the type having a base member, the base member being attachable to a bow, an elongate range member, an indicator mounted on the elongate range member for relative movement with respect thereto; the improvement comprising: an adjustable support member connected to the base member and to the range member for supporting the range member in adjustable spaced relationship from said base member, said adjustable support member including: a plurality of elongate elements telescopically interconnected for telescopic operation, wherein the range member is supported in spaced relationship from the base member at any desired position within the span of relative telescopic movement of the elongate elements; the support member having an end connected to the base member and an opposite end connected to the range member, and locking means carried by at least one of the elongate elements for locking the elongate elements in any relative position, one with respect to the other, wherein said range member is secured in any desire adjusted position with respect to the base member; said one end of the support member having a complementary portion slidably movable within the channel of the base member wherein the support member is adjustably slidably movable within the channel of thE base member; first clamping means for securing said one end of the support member relative to the base member; the opposite end of said support member having a channel therein; the range member having a complementary portion within the channel of the support member whereby the range member is adjustably slidably movable within the channel of the support member; and second clamping means for securing the range member relative to the support member.