US3874587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical counter system for altimetric displays
Assignee: Honeywell Inc
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Filing: 1974-05-06
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Granted: 1975-04-01
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Expires: 1994-05-06
Abstract
Abstract An intermittent motion transfer device for precise bidirectional transfer and alignment of the successive drums of a mechanical counter in response to the position of a movable input shaft employs an intermittently operative gear driving and position locking system cooperating with a system of confined resilient bands operating ball detents.
Inventors
- 👤 Harold J Mcgann
- 👤 John F Whalen
- 👤 Boyd K Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/14; G06M1/16; G06M1/163; G06M1/22; G06M1/26
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
166 words
Numerical display means for displaying symbols representative of the rotational position of shaft means comprising: casing element means having journal means for supporting said shaft for rotation therein, first drum display means mounted for rotation with respect to said casing element means on said shaft means, second drum display means mounted for rotation with respect to said casing element means on said shaft means, said casing element means having first annular flange means adjacent the periphery thereof, said first drum display means having second annular flange means adjacent the periphery thereof and projecting under said first annular flange means, said second drum display means having third annular flange means adjacent the periphery thereof and projecting over said first annular flange means, flexible band means disposed in the region between said first and second annular flange means, and detent means responsive to flexing of said flexible band means for selectively and fixedly engaging said first and third annular flange means against relative rotation about said shaft means.
Claim 2
Dependent Claim
166 words
Numerical display means for displaying symbols representative of the rotational position of shaft means comprising: casing element means having journal means for supporting said shaft for rotation therein, first drum display means mounted for rotation with respect to said casing element means on said shaft means, second drum display means mounted for rotation with respect to said casing element means on said shaft means, said casing element means having first annular flange means adjacent the periphery thereof, said first drum display means having second annular flange means adjacent the periphery thereof and projecting under said first annular flange means, said second drum display means having third annular flange means adjacent the periphery thereof and projecting over said first annular flange means, flexible band means disposed in the region between said first and second annular flange means, and detent means responsive to flexing of said flexible band means for selectively and fixedly engaging said first and third annular flange means against relative rotation about said shaft means.
Claim 3
Dependent Claim
35 words
Apparatus as described in claim 1 wherein the periphery of said flexible band means is greater than the inner circumference of said first annular flange means for forming loop means in said flexible band means.
Claim 4
Dependent Claim
22 words
Apparatus as described in claim 2 including guide means integral with said second annular flange means for angularly positioning said loop means.
Claim 5
Dependent Claim
38 words
Apparatus as described in claim 3 including intermittently operative means responsive to the position of said first drum display means for driving said second drum display means to a predetermined location relative to said first drum display means.
Claim 6
Dependent Claim
34 words
Apparatus as described in claim 4 wherein said intermittently operative means is journaled within said casing element means for intermittent rotation with respect thereto and for intermittent rotation of said second drum display means.
Claim 7
Dependent Claim
30 words
Apparatus as described in claim 1 wherein said detent means includes a plurality of substantially regularly spaced detent indentations on the inner circumferential surface of said second drum display means.
Claim 8
Dependent Claim
42 words
Apparatus as described in claim 6 wherein said detent means comprises ball means movable through an opening in said first annular flange means for selectively engaging said regularly spaced indentations, said ball means being responsive to flexing of said flexible band means.
Claim 9
Dependent Claim
33 words
Apparatus as described in claim 3 wherein said guide means integral with said second annular flange means includes guiding indentation means cooperating with guide finger means oppositely disposed relative to said loop means.
Claim 10
Dependent Claim
24 words
Apparatus as described in claim 8 including detent means responsive to said loop means for selectively engaging and disengaging said second drum display means.
Claim 11
Dependent Claim
26 words
Apparatus as described in claim 5 wherein said intermittently operative means includes gear means operative once for each complete revolution of said first drum display means.
Claim 12
Dependent Claim
26 words
Apparatus as described in claim 10 wherein said intermittently operative means includes means for locking said intermittently operative means except when responding to said gear means.
Claim 13
Dependent Claim
19 words
Apparatus as described in claim 11 including third drum display means intermittently responsive to said second drum display means.
Claim 14
Dependent Claim
32 words
Apparatus as described in claim 6 wherein each said detent indentation includes oppositely tilted inclined planes with a rounded groove therebetween for cooperating directly with said first and third drum display means.
Claim 15
Dependent Claim
21 words
Apparatus as described in claim 7 wherein guide finger means limits the motion of said detent ball means through said opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |