US3786286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-interrupting reciprocating motor
Assignee: Isabergs Verkstads AB
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Filing: 1972-09-14
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Granted: 1974-01-15
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Expires: 1992-09-14
Abstract
Abstract Electrically operated stapler, nailer or the like comprising a solenoid the armature of which is part of a piston means and which provides a driving force for a staple, nail or the like, circuit means for supplying at least part of the half periods of an alternating current to said solenoid as long as a switch is actuated and means for inhibiting actuation of said switch by manually actuable means in a stroke of said piston means and until release of the last named means for renewed actuation thereof.
Inventors
- 👤 S Palsson
- 👤 O Mickelsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:16
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/06; H; H01; H01H; H01H13/00; H01H13/02; H01H13/04; H01H13/08; H02; H02K; H02K33/00; H02K33/02; H02K33/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
167 words
In an electrically powered device having a solenoid with a moveable armature, and a switch connected to said solenoid to deliver thereto electrical power for moving said armature, the improvement which comprises in combination a trigger moveable between an operate position and a non-operate position, a switch actuator supported independently of said trigger and moveable between a first position and a second position, said switch actuator when in said first position being responsive to the movement of the trigger to said operate position to set the switch in a closed state, said switch actuator when in said second position being non-responsive to the movement of the trigger and disposed to set the switch in an open state, and means coupled to said switch actuator and responsive to the movement of said armature to move said switch actuator to said second position when the armature moves to a working position, and to move said switch actuator to said first position, when the armature returns to a rest position.
Claim 2
Dependent Claim
167 words
In an electrically powered device having a solenoid with a moveable armature, and a switch connected to said solenoid to deliver thereto electrical power for moving said armature, the improvement which comprises in combination a trigger moveable between an operate position and a non-operate position, a switch actuator supported independently of said trigger and moveable between a first position and a second position, said switch actuator when in said first position being responsive to the movement of the trigger to said operate position to set the switch in a closed state, said switch actuator when in said second position being non-responsive to the movement of the trigger and disposed to set the switch in an open state, and means coupled to said switch actuator and responsive to the movement of said armature to move said switch actuator to said second position when the armature moves to a working position, and to move said switch actuator to said first position, when the armature returns to a rest position.
Claim 3
Dependent Claim
42 words
The improvement according to claim 1 wherein said switch actuator and trigger have respective contact surfaces disposed for engagement when said switch actuator is in said first position, and disposed out of engagement when said switch actuator is in said second position.
Claim 4
Dependent Claim
53 words
The improvement according to claim 1 wherein said means coupled with the switch actuator and respective to the movement of said armature includes means defining a cam surface moveable with said armature and a pivotally moveable follower member coupled to said switch actuator and disposed for movement upon engagement by said cam surface.
Claim 5
Dependent Claim
25 words
The improvement according to claim 1 including resilient means biassing said trigger into said non-operate position and biassing said switch actuator toward said first position.
References Cited (Backward Citations)
FR1290830A
Cited
US3347438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |