US4364033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alarming seismometer
Assignee: Individual
•
Filing: 1979-10-31
•
Granted: 1982-12-14
•
Expires: 1999-10-31
Abstract
Abstract A small-sized, high sensitivity seismograph comprising a first seismometer for detecting left-right ground motions, a second seismometer for detecting up-down ground motions, two sets of protective device for preventing the seismographic detectors from damage due to excessive motions, an alarm system, and an adjustable device for adjusting the sensitivity of the alarm system. All of the above-described devices are provided in a case.
Inventors
- 👤 Yun-Tyng Tsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:27
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/181; G08; G08B; G08B21/00; G08B21/02; G08B21/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
229 words
An alarming seismometer apparatus comprising: (a) a case having a plurality of supporting members therein, one of said supporting members being provided with a cylinder; (b) a first seismometer for detecting left-right ground motions secured by certain ones of said supporting members, said first seismometer including a plurality of annular pendulums connected interlockingly; (c) a steel ball contained within said cylinder; (d) said cylinder being connected with at least one pendulum of said plurality of pendulums; (e) a universal joint means connected to a second of said supporting members and located above said steel ball; (f) a detecting needle actuated by motions of said pendulums, the upper end of said detecting needle being inserted through said steel ball into a recess in said universal joint whereby a higher magnification of the motions of said detecting needle may be obtained if said pendulums are moved in an earthquake; (g) an electromagnetic means for producing a voltage by the motion of said detecting needle; (h) rectifying circuit connected with said electromagnetic means whereby motions of said detecting needle can be magnified interlockingly by said pendulums, in even a very brief earthquake; (i) a second seismometer, for detecting up and down ground motions, secured by a third of said support members; (j) an alarm system connected with said rectifying circuit; and (k) a means for adjusting the sensitivity of said alarm system.
Claim 2
Dependent Claim
229 words
An alarming seismometer apparatus comprising: (a) a case having a plurality of supporting members therein, one of said supporting members being provided with a cylinder; (b) a first seismometer for detecting left-right ground motions secured by certain ones of said supporting members, said first seismometer including a plurality of annular pendulums connected interlockingly; (c) a steel ball contained within said cylinder; (d) said cylinder being connected with at least one pendulum of said plurality of pendulums; (e) a universal joint means connected to a second of said supporting members and located above said steel ball; (f) a detecting needle actuated by motions of said pendulums, the upper end of said detecting needle being inserted through said steel ball into a recess in said universal joint whereby a higher magnification of the motions of said detecting needle may be obtained if said pendulums are moved in an earthquake; (g) an electromagnetic means for producing a voltage by the motion of said detecting needle; (h) rectifying circuit connected with said electromagnetic means whereby motions of said detecting needle can be magnified interlockingly by said pendulums, in even a very brief earthquake; (i) a second seismometer, for detecting up and down ground motions, secured by a third of said support members; (j) an alarm system connected with said rectifying circuit; and (k) a means for adjusting the sensitivity of said alarm system.
Claim 3
Dependent Claim
42 words
An alarming seismometer apparatus as claimed in claim 1 wherein the lower end of said detecting needle is connected with a horizontal conductive bar whose ends approach and rotate over said electromagnetic means, said electromagnetic means constituting a plurality of electromagnetic means.
Claim 4
Dependent Claim
26 words
An alarming seismometer apparatus as claimed in claim 2, wherein said electromagnetic means is composed of two coils whose winding directions are perpendicular to each other.
Claim 5
Dependent Claim
31 words
An alarming seismometer apparatus as claimed in claim 1, 2 or 3, further comprises a protective means for preventing said detecting needle from being damaged due to over-motions of said pendulums.
Claim 6
Dependent Claim
178 words
An alarming seismometer apparatus as claimed in claim 1 or 3, wherein said second seismometer comprises two turnable arms pivoted on one of said supporting members, a recovering arm pivoted on said one supporting member having two springs respectively connected with said turnable arms, a pendulum connected with the other end of said arms having two downwardly protruding rods provided at the lower portion thereof, two L-shape levers whose upper ends are connected with the lower ends of said protruded rods respectively, two detecting needles connected to the lower ends of said L-shape levers respectively, an electromagnetic means mounted on the lower ends of said detecting needles, a rectifying circuit connected with said electromagnetic means and said alarm system, and a securing plate fixed on the bottom of said case, characterized in that the corner portions of said L-shape levers and the upper portions of said detecting needles are pivoted on said securing plate, whereby the lower end of said detecting needles will move inwardly or outwardly corresponding to the up-down motions of said pendulum in an earthquake.
Claim 7
Dependent Claim
44 words
An alarming seismometer apparatus as claimed in claim 5, wherein the upper end of said recovering arm is engaged with an adjustable device mounted on said one supporting member so as to keep the turntable arms in a horizontal position in the normal position.
Claim 8
Dependent Claim
21 words
An alarming seismometer apparatus as claimed in claim 5, wherein said electromagnetic means is composed of a coil and a core.
Claim 9
Dependent Claim
27 words
An alarming seismometer apparatus as claimed in claim 7, wherein half of said core is preferably positioned within said coil when it is in the normal condition.
Claim 10
Dependent Claim
31 words
An alarming seismometer apparatus as claimed in claim 8, wherein said apparatus contains a protective means for preventing said detecting needles from being damaged due to the over-motions of said pendulum.
References Cited (Backward Citations)
US3813505A
Cited
US4124841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |