Patent US5032345A successfully refreshed from Google Patents.
Patent US3580177A successfully refreshed from Google Patents.
US3580177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotationally responsive device
Assignee: Motorola Solutions Inc
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Filing: 1968-10-02
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Granted: 1971-05-25
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Expires: 1988-10-02
Abstract
Abstract A rotor is rotationally supported on a housing and spring urged in a first rotational sense. The spring is a multiconvolution resilient steel tape wound on the rotor and disposed between the rotor and the housing in a narrow annular space. Rotation of the housing in a second rotational sense urges the rotor to unwind the spring tape and thereby rotate a predetermined distance. A configuration for a safe and arm mechanism is disclosed.
Inventors
- 👤 Fred Krahulec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:31
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/18; F42C15/188; F42C15/20; F42C15/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
A rotationally responsive device, including the combination, a housing having a base portion, an axis and an annular wall portion concentrically extending around but spaced from said axis, platelike rotor means disposed on said housing and rotatable about said axis and having an outer periphery spaced from said wall portion to form an annular space therebetween, coiled tape means having plural convolutions disposed in said annular space and having one end connected to said rotor means at its outer periphery and another end connected to said annular wall portion for yieldably urging said rotor means in a first rotational sense, said tape means being responsive to rotation of said housing to urge said tape means to unwind and urge rotation of said rotor means in a rotational sense opposite to said first rotational sense, said tape means unwinding by moving convolution-byconvolution radially outward with insubstantial rubbing between adjacent convolutions during such action, and said rotor means and a radially inward portion of said tape means being the only parts having rotational motions with respect to said housing.
Claim 2
Dependent Claim
177 words
A rotationally responsive device, including the combination, a housing having a base portion, an axis and an annular wall portion concentrically extending around but spaced from said axis, platelike rotor means disposed on said housing and rotatable about said axis and having an outer periphery spaced from said wall portion to form an annular space therebetween, coiled tape means having plural convolutions disposed in said annular space and having one end connected to said rotor means at its outer periphery and another end connected to said annular wall portion for yieldably urging said rotor means in a first rotational sense, said tape means being responsive to rotation of said housing to urge said tape means to unwind and urge rotation of said rotor means in a rotational sense opposite to said first rotational sense, said tape means unwinding by moving convolution-byconvolution radially outward with insubstantial rubbing between adjacent convolutions during such action, and said rotor means and a radially inward portion of said tape means being the only parts having rotational motions with respect to said housing.
Claim 3
Dependent Claim
25 words
The subject matter of claim 1 wherein said tape means has a total radial thickness slightly less than the radial thickness of said annular space.
Claim 4
Dependent Claim
23 words
The subject matter of claim 1 wherein said annular space has a radial thickness not greater than a radius of said rotor means.
Claim 5
Dependent Claim
21 words
The subject matter of claim 3 wherein said tape means is made of spring steel and has at least 10 convolutions.
Claim 6
Dependent Claim
93 words
The subject matter of claim 3 wherein said housing further includes a cover portion closing an end portion of said annular wall portion opposite to said base portion, a pin extending between said base portion and said cover portion along said axis with said rotor means rotatably supported by said pin, an arcuate recess in said rotor means extending concentric to said pin, and a stop member on one of said portions extending inwardly toward said rotor means into said recess for limiting the rotational movements thereof between first and second rotational position.
Claim 7
Dependent Claim
89 words
The subject matter of claim 5 wherein said recess extends for 180* for permitting a one-half revolution of said rotor, said cover portion and said base portion each having aperture means for receiving explosive charges with said apertures being substantially axially aligned, said rotor means having an aperture located 180* from said apertures in said portion when said housing is not rotating such that said tape means is urging said rotor means to engage such stop member with one end of said arcuate recess in said one rotational sense.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |