Dental handpiece and rotor cartridge replacement assembly theref

Details Dental handpiece and rotor cartridge replacement assembly theref Dental handpiece and rotor cartridge replacement assembly theref

1978-09-20

1980-08-26

Mancene, Louis G.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433132, A61C 108

Patent

active

042193303

ABSTRACT:
A dental handpiece equipped with an improved rotor cartridge and, in particular, a rotor cartridge replacement assembly for such a handpiece. The rotor cartridge takes the form of a subassembly of a rotor, bearings for the rotor, resilient rings supporting the bearings, and a plastic cup member extending about the lower bearing assembly and the resilient support ring therefor. In addition to the rotor cartridge, the replacement assembly may also include a threaded cap and a support tool which not only holds the cap and cartridge together but also may be used for inserting and securing the parts in place within the head housing of a dental handpiece.

REFERENCES:
patent: 2945299 (1960-07-01), Fritz
patent: 3298103 (1967-01-01), Maurer
patent: 3325899 (1967-06-01), Staunt
patent: 3376084 (1968-04-01), McKee
patent: 3888008 (1975-06-01), Lake et al.
patent: 4071954 (1978-02-01), Eibofner

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