US3590182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article feeder and delivery mechanism having a shutoff switch
Assignee: Black and Decker Corp
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Filing: 1969-12-16
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Granted: 1971-06-29
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Expires: 1989-12-16
Abstract
Abstract A mechanism including a rotatable motor driven drum which feeds headed studs to a delivery tube adapted to be connected to a stud gun. A normally closed switch, in series with the drum-driving motor, is opened momentarily each time a stud is fed to the delivery tube. When studs fill the delivery tube to a preselected extent, the switch remains open and the motor turns off.
Inventors
- 👤 Robert L Beckhardt
- 👤 Richard T Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:14
CPC Classifications
B; B65; B65G; B65G47/00; B65G2811/00; B65G2811/06; B65G2811/0673; B65G2811/0689; B65G2811/0694
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
180 words
A feed and delivery mechanism comprising a motor driven feeder, chute means for receiving free-falling articles from said feeder and deliver said articles to a remote location, normally closed switch means connected to the motor to control on-off operation of said motor driven feeder, said switch means including a trip lever and a switch, said switch normally biasing said trip lever into said chute means to be engaged and moved by each of said free-falling articles after they pass into said chute means from said feeder to momentarily open said switch means whereby said feeder remains operative as a result of its momentum, said trip lever being engaged by one or more of said articles to hold said switch means open when said articles accumulate in said chute means to the level of the article engagement with said trip lever; whereby said motor driven feeder remains off, said trip lever moving back into a position in said chute means to turn said motor driven feeder on when said accumulation of said articles in said chute means falls below said level.
Claim 2
Dependent Claim
180 words
A feed and delivery mechanism comprising a motor driven feeder, chute means for receiving free-falling articles from said feeder and deliver said articles to a remote location, normally closed switch means connected to the motor to control on-off operation of said motor driven feeder, said switch means including a trip lever and a switch, said switch normally biasing said trip lever into said chute means to be engaged and moved by each of said free-falling articles after they pass into said chute means from said feeder to momentarily open said switch means whereby said feeder remains operative as a result of its momentum, said trip lever being engaged by one or more of said articles to hold said switch means open when said articles accumulate in said chute means to the level of the article engagement with said trip lever; whereby said motor driven feeder remains off, said trip lever moving back into a position in said chute means to turn said motor driven feeder on when said accumulation of said articles in said chute means falls below said level.
Claim 3
Dependent Claim
25 words
A mechanism as defined in claim 1 wherein said chute means is substantially a closed tube, an aperture in said tube receiving said trip lever.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |