US3674950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-aligning motion detectors
Assignee: American Multi Lert Corp
•
Filing: 1970-10-21
•
Granted: 1972-07-04
•
Expires: 1990-10-21
Abstract
Abstract A motion detector for energizing an alarm signal at a suitable location and which is responsive to linear motion of an object on which the detector may be mounted and capable of self-alignment to the object. The detector comprises a case or suitable enclosure within which an outer pendulum or pendulum body is supported for freedom of universal but sluggish movement and within which a second pendulum or body is supported for universal and unconstrained movement with respect to the outer pendulum. Contact is made between respective pendulums or bodies upon motion of the case to transmit an electrical signal to a suitable sensor, alarm or the like. The motion of the outer pendulum is suitably constrained as by immersing it in a liquid within the case or by providing it with a greater period than the inner pendulum or body in compound pendulum aspects. A contact ring may be located on the inner wall of the outer pendulum or other suitable contact means for electrical contact between the ring and the inner pendulum or between the contact means to close a control circuit.
Inventors
- 👤 Andrew E Scoville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:26
CPC Classifications
G; G01; G01P; G01P13/00; B; B60; B60R; B60R25/00; B60R25/10; B60R25/1004; B60R25/1006; H; H01; H01H; H01H35/00; H01H35/02; H01H35/14; H01H35/141; H01H35/142
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
A self-aligning circuit closer comprising a support, an elongated tubular pendulous contact member extending upright relative to the support, a horizontal axial support connected to said tubular member, means for suspending said contact member on an upright axis for universal movement relative to the first mentioned support about a center located on said axis, a second contact member supported on the pendulous contact member by said horizontal axial support for universal movement relative thereto with a center of suspension located on said upright axis, said contact members having different dynamics of motion about the respective centers of suspension on said axis, and means on the tubular contact member in position for contact engagement by the second contact member upon relative swinging movement for closing a circuit therebetween.
Claim 2
Dependent Claim
127 words
A self-aligning circuit closer comprising a support, an elongated tubular pendulous contact member extending upright relative to the support, a horizontal axial support connected to said tubular member, means for suspending said contact member on an upright axis for universal movement relative to the first mentioned support about a center located on said axis, a second contact member supported on the pendulous contact member by said horizontal axial support for universal movement relative thereto with a center of suspension located on said upright axis, said contact members having different dynamics of motion about the respective centers of suspension on said axis, and means on the tubular contact member in position for contact engagement by the second contact member upon relative swinging movement for closing a circuit therebetween.
Claim 3
Dependent Claim
59 words
A circuit closer according to claim 1, wherein the tubular contact member has a cross member extending transversely between opposite sides thereof, and means having a supporting connection with the cross member and forming a universal support for the respective contact members on a common horizontal axis for freedom of movement of the contact members relative to each other.
Claim 4
Dependent Claim
18 words
A circuit closer according to claim 1, including means for damping the motion of the tubular contact member.
Claim 5
Dependent Claim
29 words
A circuit closer according to claim 1, including a damping fluid housed in the casing, with the lower end portion of the tubular contact member extending into the fluid.
Claim 6
Dependent Claim
37 words
A circuit closer according to claim 1, including a contact ring secured to the inner face of the tubular contact member around the lower end portion of the second contact member and has an irregular contact face.
Claim 7
Dependent Claim
22 words
A circuit closer according to claim 5, wherein the inner face of the contact ring is elliptical about the second contact member.
Claim 8
Dependent Claim
88 words
A self-aligning motion detector comprising an outer tubular pendulum contact member, a pendulum contact member extending lengthwise in said tubular member, horizontal axial support connected to said tubular member, means supporting the respective pendulum contact members at one end thereof about a said horizontal axial support for universal movement relative to each other, said pendulum members having different dynamics of motion about the centers of suspension thereof for relative motion upon the application of force thereto, and means forming contact portions between the members upon relative motion therebetween.
Claim 9
Dependent Claim
88 words
A self-aligning motion detector comprising an outer tubular pendulum contact member, a pendulum contact member extending lengthwise in said tubular member, horizontal axial support connected to said tubular member, means supporting the respective pendulum contact members at one end thereof about a said horizontal axial support for universal movement relative to each other, said pendulum members having different dynamics of motion about the centers of suspension thereof for relative motion upon the application of force thereto, and means forming contact portions between the members upon relative motion therebetween.
Claim 10
Dependent Claim
18 words
A motion detector according to claim 7, including means for damping the motion of the outer pendulum member.
Claim 11
Dependent Claim
114 words
A circuit closer comprising an upright casing, an upright tubular contact member in the casing, means connected with the upper end of the tubular contact member mounting said member in the casing for universal movement relative thereto, a pendulum contact member extending downwardly in the tubular contact member and having a contact portion on the lower end thereof, a contact ring mounted on the inner wall of the tubular contact member surrounding the contact portion for contact engagement therebetween, and a wire member extending in bridging relation across the tubular contact member and having the upper end portion of the pendulum contact member mounted thereon for universal movement relative to the tubular contact member.
Claim 12
Dependent Claim
114 words
A circuit closer comprising an upright casing, an upright tubular contact member in the casing, means connected with the upper end of the tubular contact member mounting said member in the casing for universal movement relative thereto, a pendulum contact member extending downwardly in the tubular contact member and having a contact portion on the lower end thereof, a contact ring mounted on the inner wall of the tubular contact member surrounding the contact portion for contact engagement therebetween, and a wire member extending in bridging relation across the tubular contact member and having the upper end portion of the pendulum contact member mounted thereon for universal movement relative to the tubular contact member.
Claim 13
Dependent Claim
27 words
A circuit closer according to claim 9, wherein the contact ring has the inner face thereof extending elliptically about thE contact portion of the pendulum contact member.
Claim 14
Dependent Claim
98 words
A circuit closer comprising an upright tubular contact member, means connected with the upper end portion of the tubular contact member mounting said member for universal movement, means forming a spherical surface in the lower portion of said tubular contact member, a ball seated on the spherical surface in position for freedom of rolling contact with an inner contact surface in the tubular contact member, and means for electrical connection with the ball and with the inner contact surface and for closing a circuit therebetween upon rolling motion of the ball into contact with the inner contact surface.
Claim 15
Dependent Claim
98 words
A circuit closer comprising an upright tubular contact member, means connected with the upper end portion of the tubular contact member mounting said member for universal movement, means forming a spherical surface in the lower portion of said tubular contact member, a ball seated on the spherical surface in position for freedom of rolling contact with an inner contact surface in the tubular contact member, and means for electrical connection with the ball and with the inner contact surface and for closing a circuit therebetween upon rolling motion of the ball into contact with the inner contact surface.
Claim 16
Dependent Claim
43 words
A circuit closer according to claim 11, wherein the tubular contact member has a conductor rod secured in the lower end portion thereof and electrically insulated from the tubular contact member, said conductor rod having the spherical surface on the upper end thereof.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |