Patent US3633740A successfully refreshed from Google Patents.
US3633740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for testing small insulated objects
Assignee: Individual
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Filing: 1970-10-12
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Granted: 1972-01-11
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Expires: 1990-10-12
Abstract
Abstract A machine for automatically testing small insulated objects such as anodized aluminum rivets, by subjecting them to an electric potential and determining whether they pass current. The properly anodized rivets are coated with an insulating layer; the defective ones pass a current which is used to actuate a gatecontrolling deflector to separate them from the acceptable ones. A rotary feed arm supplies the rivets by centrifugal force to a testing head at one point in the revolution of the feed arm, and releases them individually at another point in the rotation of the arm after testing, into a path determined by the position of the deflector.
Inventors
- 👤 Edward I Westmoreland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:50
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/34; B65G47/46; B65G47/50; B65G47/48; B65G47/485; B65G47/487; Y; Y10; Y10S; Y10S209/00; Y10S209/919; Y10S209/922; Y10S209/929
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
198 words
A. Means for automatically testing small insulated objects comprising b. a rotary arm having a radial channel, c. feeder means for feeding said objects into said channel for serial alignment therein, said objects being sufficiently loose in the channel for radial outward movement in said channel under centrifugal force when the rotary arm is being rotated, d. test means carried by said rotary arm at its outward end for receiving the outermost one of the aligned objects in said channel at one point in the rotation of said arm, e. cam-controlled means for releasing said object from said test means at another point in the rotation of said arm, f. said test means including contact means for applying an electric potential to at least two spaced points on the surface of said object during continued rotational movement of said Arm between said two points. g. electromotive means in circuit with said contact means and responsive to the electric impedance between said contact means due to said object, h. path control deflector means actuated by said electromotive means for deflecting said object after release by said camcontrolled means and into another path when said electromotive means is not operative.
Claim 2
Dependent Claim
198 words
A. Means for automatically testing small insulated objects comprising b. a rotary arm having a radial channel, c. feeder means for feeding said objects into said channel for serial alignment therein, said objects being sufficiently loose in the channel for radial outward movement in said channel under centrifugal force when the rotary arm is being rotated, d. test means carried by said rotary arm at its outward end for receiving the outermost one of the aligned objects in said channel at one point in the rotation of said arm, e. cam-controlled means for releasing said object from said test means at another point in the rotation of said arm, f. said test means including contact means for applying an electric potential to at least two spaced points on the surface of said object during continued rotational movement of said Arm between said two points. g. electromotive means in circuit with said contact means and responsive to the electric impedance between said contact means due to said object, h. path control deflector means actuated by said electromotive means for deflecting said object after release by said camcontrolled means and into another path when said electromotive means is not operative.
Claim 3
Dependent Claim
59 words
The invention according to claim 1, i. wherein said objects are anodized rivets having a head and a round shank, j. said channel being slightly wider than the rivet diameter, said channel having upper edges spaced and located so that the rivet heads rest by gravity on said edges when the rivet shanks are disposed loosely within the channel.
Claim 4
Dependent Claim
22 words
The invention according to claim 2, k. said contact means including electrode means for applying an electric potential diametrically across said shank.
Claim 5
Dependent Claim
6 words
The invention according to claim 3,
Claim 6
Dependent Claim
69 words
The invention according to claim 4, m. said cam-controlled means comprising a cam follower arm pivotally mounted on said rotary arm, and a stationary cam surface against which the follower bears, as said rotary arm rotates, so as to cause pivotal oscillation of the follower arm between two extremes positions, in one of which positions the rivet is received and in the other of which the rivet is released.
Claim 7
Dependent Claim
44 words
The invention according to claim 5, n. one of said electrode means being mounted on said cam follower and another being mounted on said rotary arm, said electrode means being moved relative to each other by said pivotal oscillation movement of said cam follower.
Claim 8
Dependent Claim
54 words
The invention according to claim 1, i. said deflector means comprising toggle means for retaining said deflector means in one deflecting position after it has been actuated by said electromagnetic means, j. and reset means for resetting said deflector means to its original position after the rotary arm has passed the rivet release position.
Claim 9
Dependent Claim
18 words
The invention according to claim 7, and reset means comprising a reset operator carried by said rotary arm.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |