US3889382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micrometer tooth measuring apparatus
Assignee: Individual
•
Filing: 1974-03-25
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Granted: 1975-06-17
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Expires: 1994-03-25
Abstract
Abstract An apparatus for measuring the circumference of a tooth which includes a barrel, a sleeve rotatably positioned about the barrel in threaded engagement therewith, guide means positioned at a forward end of the barrel, and a doubled band slidably positioned within the guide means. The guide means includes an opening through which portions of the doubled band may extend in forming a closed loop. Means connect the band and sleeve such that axial movement of the sleeve is transmitted to the band while indicia on the barrel and sleeve denote the axial position of the sleeve with respect to the barrel. The size of the closed loop may be varied by rotation of the sleeve with respect to the barrel with the size of the loop being indicated by the indicia.
Inventors
- 👤 Paul R Husted
- 👤 Felix Galan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:20
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/18; G01B5/00; G01B5/02; G01B5/025
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
263 words
An apparatus for measuring the circumference of a tooth, said apparatus comprising: a barrel; a sleeve rotatably positioned about said barrel and in threaded engagement therewith; guide means positioned at a forward end of said barrel; a doubled band slidably positioned within said guide means; said guide means including an opening with the portions of said doubled band which extend beyond the opening forming a closed loop; means connecting said band and said sleeve to transmit axial movement of said sleeve to said band without transmitting rotational movement of said sleeve to said band; indicia on said barrel and sleeve to denote the axial and rotational position of said sleeve with respect to said barrel; the movement of said sleeve in a forward axial direction toward said guide means enlarging said closed loop while movement of said sleeve in a rearward axial direction away from said guide means contracts said closed loop, and said indicia having an increasing numerical designation as said sleeve is moved in a forward axial direction toward said guide means and a decreasing numerical designation as said sleeve is moved in a rearward direction away from said guide means with the numerical designation of said indicia corresponding to the enlargement and the contraction of said loop in response to movement of said sleeve, whereby the size of said closed loop may be varied by rotation of said sleeve with respect to said barrel with the size of said loop being indicated by said indicia which denote the axial and rotational position of said sleeve with respect to said barrel.
Claim 2
Independent Claim
263 words
An apparatus for measuring the circumference of a tooth, said apparatus comprising: a barrel; a sleeve rotatably positioned about said barrel and in threaded engagement therewith; guide means positioned at a forward end of said barrel; a doubled band slidably positioned within said guide means; said guide means including an opening with the portions of said doubled band which extend beyond the opening forming a closed loop; means connecting said band and said sleeve to transmit axial movement of said sleeve to said band without transmitting rotational movement of said sleeve to said band; indicia on said barrel and sleeve to denote the axial and rotational position of said sleeve with respect to said barrel; the movement of said sleeve in a forward axial direction toward said guide means enlarging said closed loop while movement of said sleeve in a rearward axial direction away from said guide means contracts said closed loop, and said indicia having an increasing numerical designation as said sleeve is moved in a forward axial direction toward said guide means and a decreasing numerical designation as said sleeve is moved in a rearward direction away from said guide means with the numerical designation of said indicia corresponding to the enlargement and the contraction of said loop in response to movement of said sleeve, whereby the size of said closed loop may be varied by rotation of said sleeve with respect to said barrel with the size of said loop being indicated by said indicia which denote the axial and rotational position of said sleeve with respect to said barrel.
Claim 3
Dependent Claim
42 words
The apparatus of claim 1 wherein said guide means is curved to permit the positioning of said loop over a tooth in a human patient''s mouth without undue pressure of the guide means against the inner tissue of the patient''s facial area.
Claim 4
Dependent Claim
27 words
The apparatus of claim 1 including a slide block slidably positioned within said guide means, and said doubled band having inner ends secured to said slide block.
Claim 5
Dependent Claim
37 words
The apparatus of claim 1 wherein said barrel is sufficiently long to permit axial movement of said sleeve through a distance to vary the size of said loop to fit the entire size range of human teeth.
Claim 6
Independent Claim
218 words
An apparatus for measuring the circumference of a tooth, said apparatus comprising: a barrel; a sleeve rotatably positioned about said barrel and in threaded engagement therewith; guide means positioned at a forward end of said barrel; a doubled band slidably positioned within said guide means; said guide means including an opening with the portions of said doubled band which extend beyond the opening forming a closed loop; said guide means including a pair of guide arms each having an inner end pivotally connected to the forward end of said barrel for pivotal movement of said arms away from each other to an open position; interior guide surfaces for said doubled band defined on opposed portions of said guide arms; releasable means to fix the position of said arms in a closed position with the opposed portions of said arms in contacting relation and said doubled band slidably retained within said interior guide surfaces; means connecting said band and said sleeve to transmit axial movement of said sleeve to said band, and indicia on said barrel and sleeve to denote the axial and rotational position of said sleeve with respect to said barrel, whereby the size of said closed loop may be varied by rotation of said sleeve with the size of said loop being indicated by said indicia.
Claim 7
Independent Claim
218 words
An apparatus for measuring the circumference of a tooth, said apparatus comprising: a barrel; a sleeve rotatably positioned about said barrel and in threaded engagement therewith; guide means positioned at a forward end of said barrel; a doubled band slidably positioned within said guide means; said guide means including an opening with the portions of said doubled band which extend beyond the opening forming a closed loop; said guide means including a pair of guide arms each having an inner end pivotally connected to the forward end of said barrel for pivotal movement of said arms away from each other to an open position; interior guide surfaces for said doubled band defined on opposed portions of said guide arms; releasable means to fix the position of said arms in a closed position with the opposed portions of said arms in contacting relation and said doubled band slidably retained within said interior guide surfaces; means connecting said band and said sleeve to transmit axial movement of said sleeve to said band, and indicia on said barrel and sleeve to denote the axial and rotational position of said sleeve with respect to said barrel, whereby the size of said closed loop may be varied by rotation of said sleeve with the size of said loop being indicated by said indicia.
Claim 8
Dependent Claim
39 words
The apparatus of claim 5 wherein said interior guide surfaces include a groove formed on each of said opposed portions, and said grooves forming an enclosed guide passage for said doubled band with said arms in a closed position.
Claim 9
Dependent Claim
70 words
The apparatus of claim 6 including outer ends on said arms; an upstanding guide surface formed adjacent the outer end of one of said arms; said guide surface extending into the groove in the other of said arms, and said guide surface reducing the size of a portion of the groove in the other of said arms with said reduced size portion forming the said opening for said doubled band.
Claim 10
Dependent Claim
44 words
The apparatus of claim 5 wherein each of said guide arms is curved to permit the positioning of said loop over a tooth in a human patient''s mouth without undue pressure of said guide arms against the inner tissue of the patient''s facial area.
Claim 11
Dependent Claim
54 words
The apparatus of claim 5 including a slide block slidably retained within said interior guide surfaces with said arms in a closed position, and said doubled band having inner ends secured to said slide block, whereby movement of said slide block causes movement of said doubled band in expanding or contracting said closed loop.
Claim 12
Independent Claim
168 words
An apparatus for measuring the circumference of a tooth, said apparatus comprising: a barrel; a sleeve rotatably positioned about said barrel and in threaded engagement therewith; guide means positioned at a forward end of said barrel; a doubled band slidably positioned within said guide means; said guide means including an opening with the portions of said doubled band which extend beyond the opening forming a closed loop; an axial bore in said barrel; a rod positioned within said bore; said rod having an outer end secured to inner ends of said doubled band and an inner end secured to said sleeve; a swivel connection between said sleeve and said rod to transmit axial movement of said sleeve to said rod, and indicia on said barrel and sleeve to denote the axial and rotational position of said sleeve with respect to said barrel, whereby the size of said closed loop may be varied by rotation of said sleeve with the size of said loop being indicated by said indicia.
Claim 13
Independent Claim
168 words
An apparatus for measuring the circumference of a tooth, said apparatus comprising: a barrel; a sleeve rotatably positioned about said barrel and in threaded engagement therewith; guide means positioned at a forward end of said barrel; a doubled band slidably positioned within said guide means; said guide means including an opening with the portions of said doubled band which extend beyond the opening forming a closed loop; an axial bore in said barrel; a rod positioned within said bore; said rod having an outer end secured to inner ends of said doubled band and an inner end secured to said sleeve; a swivel connection between said sleeve and said rod to transmit axial movement of said sleeve to said rod, and indicia on said barrel and sleeve to denote the axial and rotational position of said sleeve with respect to said barrel, whereby the size of said closed loop may be varied by rotation of said sleeve with the size of said loop being indicated by said indicia.
Claim 14
Dependent Claim
26 words
The apparatus of claim 10 wherein said bore and said rod have a configuration which prevents rotational movement of said rod with respect to said bore.
Claim 15
Dependent Claim
39 words
The apparatus of claim 10 including a slide block slidably positioned within said guide means; said doubled band having inner ends secured to said slide block, and said rod having its outer end releasably secured to said slide block.
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |