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US 5,197,878 AGranted
Clamp for removing a dental prosthetic
AssigneeThomas A. Lukase
InventorsStephen P. Lukase, Thomas A. Lukase
Life of this patent
Estimating the term…
Abstract
A two prong clamp is adjustably attachable to a dental prosthetic device with compressible resilient inserts to securely grip and retain the dental prosthetic device without causing damage while a force is applied to the clamp sufficient to dislodge and remove the dental prosthetic device. A tool for engaging and exerting a force upon the clamp or upon a bridge is also shown.
Claims24
An extraction tool for removing a dental prosthetic device, said tool comprising in combination:
- a) an opposed pair of clamp arms for gripping opposed sides of the dental prosthetic device, each clamp arm of said pair of clamp arms including an upper end and a lower end;
- b) means for pivotally interconnecting said pair of clamp arms;
- c) means for limiting outward pivotal movement of said upper ends of said pair of clamp arms;
- d) means for urging pivotal movement of said pair of clamp arms and movement of said lower ends toward one another in response to outward limited pivotal movement of said upper ends and away from one another to grip and release, respectively, the dental prosthetic device, said urging means including means for relocating the pivotal interconnection between said pair of clamp arms to urge movement of said lower ends;
- and
- e) means for accommodating application of a pulling force upon said tool to cause said tool to extract the dental prosthetic device gripped by said pair of clamp arms.
3 more elements
An extraction tool for removing a dental prosthetic device, said tool comprising in combination:
- a) an opposed pair of clamp arms for gripping opposed sides of the dental prosthetic device, each clamp arm of said pair of clamp arms including an upper end and a lower end;
- b) means for pivotally interconnecting said pair of clamp arms intermediate said upper and lower ends, said interconnecting means including at least one apertured support extending from each of said clamp arms and pin means for penetrably engaging each of said apertured supports;
- c) means for limiting the extent of pivotal movement of said upper ends away from one another;
- d) said limiting means including means for translating said interconnecting means relative to said limiting means and as a result of such translation urge pivotal movement of said pair of clamp arms to draw said lower ends toward and away from one another grip and release, respectively, the dental prosthetic device, said translating means including a threaded stud extending from said limiting means and a threaded passageway associated with said pin means for receiving said threaded stud;
- and
- e) means for accommodating application of a pulling force upon said tool to cause said tool to extract the dental prosthetic device gripped by said lower ends of said pair of clamp arms.
3 more elements
An extraction tool for removing a dental prosthetic device, said tool comprising in combination:
- a) an opposed pair of clamp arms for gripping opposed sides of the dental prosthetic device, each clamp arm of said pair of clamp arms including a pair of spaced apart supports;
- b) means for pivotally interconnecting said pair of clamp arms, said interconnecting means including a threaded nut;
- c) pin means for pivotally attaching said pairs of supports to opposed sides of said threaded nut;
- d) means for urging pivotal movement of said pair of clamp arms about said pin means and toward and away from one another to grip and release, respectively, the dental prosthetic device;
- and
- d) means for accommodating application of a pulling force upon said tool to cause said tool to extract the dental prosthetic device gripped by said pair of clamp arms.
3 more elements
A cable lock apparatus for use with a slide hammer to exert an impact force upon a dental prosthetic device to extract the dental prosthetic device, said apparatus comprising in combination:
- a) a cone shaped cup having a base and an interior side wall;
- b) means disposed in said base for penetrably receiving the ends of a cable loop, which cable loop may be engaged with the dental prosthetic device to be extracted;
- c) a slug for positionally retaining segments of the cable loop against said interior wall to lock the cable loop in place;
- d) means for securing said slug with said cup;
- and
- e) means for connecting the impact hammer with said slug to exert an impact force upon said slug with the impact hammer to extract the cable loop engaged dental prosthetic device.
3 more elements
An extraction tool for removing a dental prosthetic device, said tool comprising in combination:
- a) an opposed pair of clamp arms for gripping opposed sides of the dental prosthetic device each clamp arm of said pair of clamp arms including a lower end, a trough disposed in each of said lower ends, a tip mountable within each of said troughs, each of said tips including a cavity having a configuration compatible with the impression contours of the dental prosthetic to be removed, and an insert mountable within each of said cavities for engaging the dental prosthetic to be removed;
- b) means for pivotally interconnecting said pair of clamp arms;
- c) means for urging pivotal movement of said pair of clamp arms toward and away from one another to grip and release, respectively, the dental prosthetic device;
- and
- d) means for accommodating application of a pulling force upon said tool to cause said tool to extract the dental prosthetic device gripped by said pair of clamp arms.
2 more elements
An extraction tool for removing a dental prosthetic device, said tool comprising in combination:
- a) an opposed pair of clamp arms for gripping opposed sides of the dental prosthetic device;
- b) means for pivotally interconnecting said pair of clamp arms;
- c) means for urging pivotal movement of said pair of clamp arms toward and away from one another to grip and release, respectively, the dental prosthetic device;
- d) means for accommodating application of a pulling force upon said tool to cause said tool to extract the dental prosthetic device gripped by said pair of clamp arms;
- e) said urging means including means for translating said interconnecting means relative to said accommodating means which translation brings about pivotal movement of said clamp arms;
- f) said clamp arms including replaceable tips for gripping opposed sides of the dental prosthetic device;
- and
- g) means for enhancing the gripping force of said clamp arms.
5 more elements
An extraction tool for removing a dental prosthetic device, said tool comprising in combination:
- a) an opposed pair of clamp arms for gripping opposed sides of the dental prosthetic device;
- b) means for pivotally interconnecting said pair of clamp arms;
- c) means for urging pivotal movement of said pair of clamp arms toward and away from one another to grip and release, respectively, the dental prosthetic device;
- d) means for accommodating application of a pulling force upon said tool to cause said tool to extract the dental prosthetic device gripped by said pair of clamp arms;
- and
- e) means for exerting the pulling force upon said tool, said exerting means comprising:
- i) a cone shaped cup having a base and an interior side wall;
- ii) means disposed in said base for penetrably receiving the ends of a cable loop, which cable loop may be engaged with said accommodating means;
- iii) a slug for positionally retaining segments of the cable loop against said interior wall to lock the cable loop in place;
- iv) means for securing said slug with said cup;
- and
- v) means for connecting an impact hammer with said slug to exert the pulling force upon said slug with the impact hammer.
9 more elements
Dependencies are inferred from the claim text.