Vacuum assisted post hole digger tool and apparatus with rotary clog breaker

A tool for boring holes in soil comprising;

• a. a longitudinally elongated tubular housing having a straight lower section and having disposed through its length a coaxial vacuum bore, said housing having at an upper transverse end thereof an upper opening which communicates with said vacuum bore and at a lower transverse end thereof a lower opening which communicates with said vacuum bore,
• b. a bore head assembly located at a lower end of said tubular housing, said bore head assembly including at least first and second cutting teeth of a first type which protrudes downwardly of a hollow cylindrical bore head tooth support base ring, said bore head tooth support base ring having disposed longitudinally therethrough a central coaxial bore head bore having an upper opening which communicates with said lower opening of said housing bore, and a lower opening for drawing in soil, and
• c. a vacuum inlet tube having disposed through its length a vacuum inlet tube bore having at a first inner end thereof a first opening connected in hermetically sealing contact with said upper opening of said tubular housing vacuum bore and at a second outer end thereof a second opening connectable in hermetically sealing contact to a vacuum inlet hose, said vacuum inlet tube having the form of an elbow having an inner longitudinally disposed vertical leg which is coupled to said upper transverse end of said tubular housing, and an outer transverse leg which extends outwardly of an upper end of said vertical leg, said lower end of said inner vertical leg of said elbow being coupled to an upper end of said tubular housing by a rotary union.

A tool for boring holes in soil comprising;

• a. a longitudinally elongated tubular housing having a straight lower section and having disposed through its length a coaxial vacuum bore, said housing having at an upper transverse end thereof an upper opening which communicates with said vacuum bore and at a lower transverse end thereof a lower opening which communicates with said vacuum bore,
• b. a bore head assembly located at a lower end of said tubular housing, said bore head assembly including at least first and second cutting teeth of a first type which protrudes downwardly of a hollow cylindrical bore head tooth support base ring, said bore head tooth support base ring having disposed longitudinally therethrough a central coaxial bore head bore having an upper opening which communicates with said lower opening of said housing bore, and a lower opening for drawing in soil,
• c. a vacuum inlet tube having disposed through its length a vacuum inlet tube bore having at a first inner end thereof a first opening connected in hermetically sealing contact with said upper opening of said tubular housing vacuum bore and at a second outer end thereof a second opening connectable in hermetically sealing contact to a vacuum inlet hose, and
• d. an elongated rotatable unclogger bar which is disposed through said central coaxial bore through said bore head assembly and at least a lower part of said vacuum bore of said housing, said unclogger bar having an angled lower end portion.