Patent ID: 6145152
Filing Date: 2000-11-14
Classification: A46B

Abstract:
A replaceable head toothbrush construction comprising:a handle unit including an elongated handle member having a lower portion, an intermediate portion and an upper portion wherein the upper portion is provided with a contoured central bore, a transverse bore intersecting a portion of said central bore, and a registration notch formed on the top of said upper portion, p1 a replaceable head unit including a plurality of head members wherein each head member comprises a different dental head implement mounted wherein each individual dental head implement is formed on top of a neck segment having a downwardly depending registration tang dimensioned to be received in the registration notch in the handle member and wherein the neck segment is further provided with a downwardly depending shaft element provided with a base segment which is dimensioned to be received in said central bore and said central bore is provided with an upper portion having an elongated cylindrical shape dimensioned to slidably receive said shaft element, an intermediate portion having an enlarged diameter truncated cylindrical shape defining a peripheral recess within said bore and a lower portion dimensioned to receive said base segment wherein the lower portion of said recess and base segment both have a generally inverted trapezoidal shape; and a push button element having a shaft dimensioned to be received in said transverse bore wherein one end of said shaft is provided with an enlarged head and the other end of said shaft is provided with a spring loaded catch element dimensioned to be received in said peripheral recess and adapted to captively engage the base segment of the head member within the lower portion of said central bore.