초록 ▼

An autoclavable dental bur block or portable holder for dental burs and the like having elastomeric insert receptacles adapted to releasably hold burs of different shank diameters, with the receptacles color coded and arrangeable and rearrangeable in organized manner as a convenient means to identif

An autoclavable dental bur block or portable holder for dental burs and the like having elastomeric insert receptacles adapted to releasably hold burs of different shank diameters, with the receptacles color coded and arrangeable and rearrangeable in organized manner as a convenient means to identify and organize the different kinds of burs in the holder. The tubular insert receptacles have a downwardly tapered central bore, including an upper portion of relatively large average diameter extending above the support panel to accommodate large-shank burs, and a lower portion extending below the support panel to accommodate small-shank burs. Dovetail fitting elements on the sides of the bur blocks adapt them to interengage complemental fittings on other blocks so as to hold a plurality of the bur blocks in substantially coplanar relationship permitting them to be handled as a composite unit.

대표청구항 ▼

A portable holder for dental burs and the like of the type including an elongated substantially straight cylindrical shank and a rotary cutter formation on one end of the shank, said holder comprising a base portion adapted to rest on a horizontal support surface and maintaining therein a holder pan

A portable holder for dental burs and the like of the type including an elongated substantially straight cylindrical shank and a rotary cutter formation on one end of the shank, said holder comprising a base portion adapted to rest on a horizontal support surface and maintaining therein a holder panel in substantially horizontal position elevated above said support surface, said holder panel having a plurality of mutually spaced receptacle holes therein, a plurality of substantially tubular insert elastomeric material receptacles retentively engaged in the respective panel holes with their tubular axis oriented substantially vertically, said insert receptacles each including a tubular body portion extending through said holder panel and open at top and bottom, and a head portion adapted to seat against the top face of the holder panel, thereby to locate the insert receptacle vertically in relation to the panel, said insert receptacle body portion having an axially extending tubular socket bore of a size and a surrounding bore wall of an elastic yieldability adapting the body portion to elastically expand to accommodatively receive and thereupon retentively grip and frictionally retain a dental bur shank inserted downwardly therein, at least certain of the insert receptacles have an upper portion extending about the holder panel with a tubular socket bore adapted to hold dental burs having shanks of a first order of size, and having a lower portion extending below the holder panel with a tubular socket bore adapted to hold dental burs with shanks of a smaller order of size.