Patent US4991759A successfully refreshed from Google Patents.
US4991759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental dispenser for light curable substances
Assignee: Individual
•
Filing: 1990-03-26
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Granted: 1991-02-12
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Expires: 2010-03-26
Abstract
Abstract A dispenser for maintaining light sensitive substances utilized in the practice of dentistry shielded from light and providing easy and convenient access by the dentist includes a container and a cover therefor with the cover being hingably attached to the container. The container includes a plurality of recesses for receiving one or more light sensitive substances. The container is provided with structure such as a finger hold on the bottom or an elastic band for maintaining the container on one or more digits of a hand and the cover is provided with a ring or other suitable structure for maintaining the cover in operable engagement with another digit of the hand, such as a thumb, whereby the dispenser may be held in one hand and readily opened and closed to provide easy, quick, convenient access to the light sensitive substances by the dentist.
Inventors
- 👤 Jonathan Scharf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:13
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/006; A61C2202/00; A61C2202/01; Y; Y10; Y10S; Y10S206/00; Y10S206/815; Y10S206/828
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
125 words
Apparatus for use in the practice of dentistry, comprising: a container and a cover both formed of a light opaque material, said cover sealably mating with said container to prevent the entry of light when said cover is in sealable engagement with said container; said container including therein a plurality of open recesses for receiving one or more light sensitive substances useful in the practice of dentistry; said cover being provided with means for retaining said cover on one or more digits of a users hand; said container being provided with means for retaining other digit or digits of the same hand in operative engagement with said container; whereby said apparatus may be retained on and opened and closed by the digits of one hand.
Claim 2
Dependent Claim
125 words
Apparatus for use in the practice of dentistry, comprising: a container and a cover both formed of a light opaque material, said cover sealably mating with said container to prevent the entry of light when said cover is in sealable engagement with said container; said container including therein a plurality of open recesses for receiving one or more light sensitive substances useful in the practice of dentistry; said cover being provided with means for retaining said cover on one or more digits of a users hand; said container being provided with means for retaining other digit or digits of the same hand in operative engagement with said container; whereby said apparatus may be retained on and opened and closed by the digits of one hand.
Claim 3
Dependent Claim
19 words
Apparatus in accordance with claim 1 wherein said light opaque container and cover are comprised of synthetic plastic material.
Claim 4
Dependent Claim
25 words
Apparatus in accordance with claim 1 wherein said container and said cover are separate members connected together at at least one point by a hinge.
Claim 5
Dependent Claim
32 words
Apparatus in accordance with claim 3 wherein said container and said cover are provided with means for latching said cover to said container, said latch means being positioned substantially opposite said hinge.
Claim 6
Dependent Claim
37 words
Apparatus in accordance with claim 1 wherein said container and said cover are comprised of a unitary member connected together at at least one point wherein said point of connection is flexible and forms a hinge-like connection.
Claim 7
Dependent Claim
27 words
Apparatus in accordance with claim 4 wherein said flexible connection is comprised of a series of points along a straight line to form a hinge like connection.
Claim 8
Dependent Claim
20 words
Apparatus in accordance with claim 1 wherein said light sensitive substances are composite resins utilized in the practice of dentistry.
Claim 9
Dependent Claim
51 words
Apparatus in accordance with claim 1 wherein said retaining means of said container is comprised of an opening formed in the lower surface of said container for the insertion of at least one digit, said opening being sealed from the inner surface of said container to prevent the entry of light.
Claim 10
Dependent Claim
59 words
Apparatus in accordance with claim 1 wherein said retaining means of said container is comprised of an elastic member mounted at spaced apart points on the outer surface of said container wherein one or more digits of the hand may be inserted between said container and said elastic member to retain said container on the digits of the hand.
Claim 11
Dependent Claim
49 words
Apparatus in accordance with claim 1 wherein said retaining means of said cover is in the form of a loop formed on the upper surface of said cover through which one or more digits of the hand may be inserted to retain it in operative engagement with said cover.
Claim 12
Dependent Claim
16 words
Apparatus in accordance with claim 10 wherein said loop is in the form of a ring.
Claim 13
Dependent Claim
37 words
Apparatus in accordance with claim 1 wherein said means for receiving one or more light sensitive substances is comprised of a removable plate member provided with said recesses for receiving substances useful in the practice of dentistry.
Claim 14
Dependent Claim
34 words
Apparatus in accordance with claim 12 wherein said removable plate member is provided with a handle for aiding in the insertion and removal of said plate member into or out of said container, respectively.
Claim 15
Dependent Claim
31 words
Apparatus in accordance with claim 12 wherein said plate is provided with two concentric circles of recesses, including a smaller circle of four recesses and a larger circle of eight recesses.
Claim 16
Dependent Claim
35 words
Apparatus in accordance with claim 1 wherein said container and cover are provided with the general shape of a semicircle having hinge means formed along at least a portion of the diameter of the semicircle.
Claim 17
Dependent Claim
20 words
Apparatus in accordance with claim 1 wherein said container and cover are provided with the general shape of a circle.
Claim 18
Dependent Claim
58 words
Apparatus in accordance with claim 1 wherein said retaining means of said container is in the form of an elastic member attached to said cover at two spaced apart points wherein one or more digits of a hand may be inserted between the container and said elastic member to retain said digits in operative engagement with said container.
Claim 19
Dependent Claim
23 words
Apparatus for storing a plurality of apparatus as set forth in claim 1 including therein a plurality of compartments, one for each apparatus.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |