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An adjustable-length shaft implanted in the ground for supporting trees. A helical screw is mounted on the lower end of the shaft. A lever arm, passed into a lever fitting attached to the shaft, is rotated about the shaft, causing the helical screw to penetrate and lodge in the ground. An anchoring

An adjustable-length shaft implanted in the ground for supporting trees. A helical screw is mounted on the lower end of the shaft. A lever arm, passed into a lever fitting attached to the shaft, is rotated about the shaft, causing the helical screw to penetrate and lodge in the ground. An anchoring bracket is attached to a portion of the shaft immediately above the ground. An anchoring rod is driven through the bracket into the ground, preventing further rotation of the shaft. A rigid fastening arm extends outwardly from the upper end of the shaft. The outer end of the fastening arm has a flexible strap with a free end. After adjusting and securing the shaft at the desired height, the free end of the strap is looped around the tree trunk and back through a ratchet mechanism in the fastening arm, which holds the free end fast.

대표청구항 ▼

An adjustable-length shaft implanted in the ground for supporting trees. A helical screw is mounted on the lower end of the shaft. A lever arm, passed into a lever fitting attached to the shaft, is rotated about the shaft, causing the helical screw to penetrate and lodge in the ground. An anchoring

An adjustable-length shaft implanted in the ground for supporting trees. A helical screw is mounted on the lower end of the shaft. A lever arm, passed into a lever fitting attached to the shaft, is rotated about the shaft, causing the helical screw to penetrate and lodge in the ground. An anchoring bracket is attached to a portion of the shaft immediately above the ground. An anchoring rod is driven through the bracket into the ground, preventing further rotation of the shaft. A rigid fastening arm extends outwardly from the upper end of the shaft. The outer end of the fastening arm has a flexible strap with a free end. After adjusting and securing the shaft at the desired height, the free end of the strap is looped around the tree trunk and back through a ratchet mechanism in the fastening arm, which holds the free end fast. Finkelstein; US-4280978, 19810700, Dannheim et al.; US-4294389, 19811000, Falk et al.; US-4328907, 19820500, Beard; US-4353480, 19821000, McFadyen; US-4363454, 19821200, Mohar; US-4375874, 19830300, Leotta et al.; US-4383656, 19830500, Campbell; US-4401248, 19830800, Helms; US-4411374, 19831000, Hotchkiss; US-4425012, 19840100, Kley; US-4427159, 19840100, Miller et al.; US-4428497, 19840100, Julius et al.; US-4432504, 19840200, Pace; US-4436221, 19840300, Margulies; US-4447015, 19840500, Peterson; US-4453634, 19840600, Blumenthal; US-4463912, 19840800, Grunerud; US-4467974, 19840800, Crim; US-4526291, 19850700, Margulies; US-4535912, 19850800, Bonk; US-4550855, 19851100, Harrison; US-4564148, 19860100, Wentworth; US-4566606, 19860100, Kling; US-4570820, 19860200, Murphy; US-4601938, 19860700, Deacon et al.; US-4607809, 19860800, Sineni et al.; US-4648530, 19870300, Granger; US-4659028, 19870400, Wren; US-4662576, 19870500, Paul; US-4662577, 19870500, Lewis; US-4667890, 19870500, Gietman, Jr.; US-4684075, 19870800, Francis; US-4687153, 19870800, McNeil; US-4690345, 19870900, Cotey; US-4721264, 19880100, Muscarello; US-4735317, 19880400, Sussman et al.; US-4756485, 19880700, Bastian et al.; US-4775119, 19881000, Aronne; US-4784290, 19881100, Howard; US-4790490, 19881200, Chakravorty; US-4807823, 19890200, Wyant; US-4826063, 19890500, Ban; US-4828193, 19890500, Galbraith; US-4830301, 19890500, Miller; US-4834316, 19890500, DeLorean; US-4836368, 19890600, Cotton; US-4836462, 19890600, Bruss; US-4846412, 19890700, Morand; US-4860893, 19890800, Kaufman; US-D303890, 19891000, Pilot; US-4877133, 19891000, Klenter et al.; US-4883197, 19891100, Sanchez et al.; US-4884690, 19891200, Klenter et al.; US-