Patent US3832898A successfully refreshed from Google Patents.
US3832898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual-mount electromechanical deflection sensor
Assignee: Individual
•
Filing: 1973-09-24
•
Granted: 1974-09-03
•
Expires: 1993-09-24
Abstract
Abstract A dual-mount deflection sensor including an elongated carrier for supporting a pair of piezoresistive elements. The carrier is unitary, and includes a pair of end parts (for securing it to an external body) and an elongated slender stem joining such parts. The stem has one portion with an outer surface of revolution for receiving the piezoresistive elements, and another portion with a noncircular, flattened, elongated transverse cross section for providing a preferential bending plane in the carrier. A modified carrier contains transverse slots in the second-mentioned portion of the stem for minimizing the effect on the piezoresistive elements of axially carried forces in the carrier.
Inventors
- 👤 G Randolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:15
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
168 words
In a dual-mount electromechanical deflection sensor, an elongated deflectable carrier for supporting an elongated electrical deflection-sensitive element, said carrier comprising a pair of spaced-apart end parts adapted for attaching the carrier to an external body, and an elongated central part extending between and joining said end parts, said central part including one elongated portion adapted to receive and mount such an element with the latter disposed with its longitudinal axis extending in a plane containing the longitudinal axis of the carrier, said one portion having along its length a transverse cross-sectional configuration providing said one portion along its length with a substantially directionally nonpreferential transverse spring rate, and another elongated portion joining longitudinally axially with said one portion and having along its length a transverse cross-sectional configuration providing said other portion along its length with a directionally preferential transverse spring rate, the latter spring rate being relatively high respecting deflections of the carrier in said plane, and relatively low respecting deflections of the carrier normal to said plane.
Claim 2
Dependent Claim
168 words
In a dual-mount electromechanical deflection sensor, an elongated deflectable carrier for supporting an elongated electrical deflection-sensitive element, said carrier comprising a pair of spaced-apart end parts adapted for attaching the carrier to an external body, and an elongated central part extending between and joining said end parts, said central part including one elongated portion adapted to receive and mount such an element with the latter disposed with its longitudinal axis extending in a plane containing the longitudinal axis of the carrier, said one portion having along its length a transverse cross-sectional configuration providing said one portion along its length with a substantially directionally nonpreferential transverse spring rate, and another elongated portion joining longitudinally axially with said one portion and having along its length a transverse cross-sectional configuration providing said other portion along its length with a directionally preferential transverse spring rate, the latter spring rate being relatively high respecting deflections of the carrier in said plane, and relatively low respecting deflections of the carrier normal to said plane.
Claim 3
Dependent Claim
44 words
The sensor of claim 1, wherein said one portion has along its length a circular transverse cross section, and said other portion has along its length an elongated, noncircular transverse cross section, the latter cross section having its longitudinal axis extending in said plane.
Claim 4
Dependent Claim
15 words
The sensor of claim 2, wherein said end parts and said central part are unitary.
Claim 5
Dependent Claim
192 words
In a dual-mount electromechanical deflection sensor including an elongated deflectable carrier for supporting an elongated electrical deflection-sensitive element, said carrier comprising a pair of spaced-apart end parts adapted for attaching the carrier to an external body, and an elongated central part extending between and joining said end parts, said central part including one elongated portion adapted to receive and mount such an element with the latter disposed with its longitudinal axis extending in a plane containing the longitudinal axis of the carrier, said one portion having along its length a transverse cross-sectiOnal configuration providing said one portion along its length with a substantially directionally nonpreferential transverse spring rate, and another elongated portion joining longitudinally axially with said one portion and having along its length a transverse cross-sectional configuration providing said other portion along its length with a directionally preferential transverse spring rate, the latter spring rate being relatively high respecting deflections of the carrier in said plane, and relatively low respecting deflections of the carrier normal to said plane, said other portion being constructed with a medial section having a lower longitudinal spring rate than all other sections in said other portion.
Claim 6
Dependent Claim
192 words
In a dual-mount electromechanical deflection sensor including an elongated deflectable carrier for supporting an elongated electrical deflection-sensitive element, said carrier comprising a pair of spaced-apart end parts adapted for attaching the carrier to an external body, and an elongated central part extending between and joining said end parts, said central part including one elongated portion adapted to receive and mount such an element with the latter disposed with its longitudinal axis extending in a plane containing the longitudinal axis of the carrier, said one portion having along its length a transverse cross-sectiOnal configuration providing said one portion along its length with a substantially directionally nonpreferential transverse spring rate, and another elongated portion joining longitudinally axially with said one portion and having along its length a transverse cross-sectional configuration providing said other portion along its length with a directionally preferential transverse spring rate, the latter spring rate being relatively high respecting deflections of the carrier in said plane, and relatively low respecting deflections of the carrier normal to said plane, said other portion being constructed with a medial section having a lower longitudinal spring rate than all other sections in said other portion.
Claim 7
Dependent Claim
49 words
The sensor of claim 4, wherein said one portion has along its length a circular transverse cross section, and said other portion, except throughout its said medial section, has along its length an elongated, noncircular cross section, the latter cross section having its longitudinal axis extending in said plane.
Claim 8
Dependent Claim
15 words
The sensor of claim 5, wherein said end parts and said central part are unitary.
Claim 9
Dependent Claim
34 words
The sensor of claim 6, wherein said medial section of said other portion is defined by at least a pair of longitudinally spaced, transversely overlapping slots extending into opposite sides of said other portion.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |