Nova Patents
US3494581A

Earth mount assembly for target traps

Abstract

This record has no abstract on file.

US3494581A, drawing sheet 1
Sheet 1 of 7

Term

Term ended

Expired 10 February 1987, 39.6 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

11 claims: 1 independent, 10 dependent

  1. 1
    What is claimed is:1. An earth mount unit comprising an elongated base member set upon the earth and having a slot formed in one end portion, a hold-down member having one end pivotally mounted upon an intermediate portion of the base member with its free end disposed for movement toward and away from the slotted end portion of the base member, said hold-down member having a slot formed in said free end thereof in vertical alignment with the slot in the end portion of the base member, an earth anchor having an upstanding shank adapted to be fixedly imbedded in the earth against axial movement, said shank having an upper end projecting from the earth and entered into and vertically through the slots in the base member and the hold-down member, spring means operatively connected in said units to act between the upper end of the earth anchor and the base member, and a spring compressing device and mechanical leverage means associated with the upper end of the earth anchor and the free end of the hold-down member and operable to place the spring means under compression between the base member and the earth anchor to thereby create a downward positioning pressure on the base member against the earth and on equal and opposite tension in the earth anchor.