US3648001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact hand held switching device with insertable switching means
Assignee: Individual
•
Filing: 1969-12-11
•
Granted: 1972-03-07
•
Expires: 1989-12-11
Abstract
Abstract A surgical tool of the type in which cutting or cauterizing current is selectively introduced to a blade by means of a finger-operated switch actuating member, the tool comprised of an outer case and a correspondingly structured removable insert carrying the switching mechanism, the switch actuating arm between the switch actuating member and the switch mounted to reciprocate in a plane normal to the axis about which the switch actuating member oscillates to provide a compact pencil-type device, the combination case and insert being adaptable to provide switching means for applications other than surgical tools. The switches have threaded extensions which are inserted through trunnions in the casing and held there by clamping units.
Inventors
- 👤 Robert K Anderson
- 👤 Karl D Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:45
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1402; H; H01; H01H; H01H21/00; H01H21/02; H01H21/04; H01H21/10; A61B2018/0091; A61B2018/00916; A61B2018/00922; H01H2300/00; H01H2300/014
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
281 words
An electrical switch device comprising: a. an elongated tube having a cylindrical bore therein forming a tubular housinG and having a slot in the wall thereof intermediate its ends, said housing including a pair of juxtaposed internal trunnions formed therein; b. a pair of juxtaposed electrical switches mounted in said housing, each of said switches having a threaded extension formed on one end thereof, each of said switches having a pair of stationary electrical contacts for bridging the gap therebetween, each of said movable contacts being normally biased out of contact with its corresponding pair of stationary electrical contacts; c. a pair of clamping nuts for securing said electrical switches within said housing, each of said switches being mounted in said housing with its threaded extension in a corresponding trunnion, each trunnion being disposed between its corresponding switch and clamping nut; d. a rocker-type switch actuator pivotally mounted in said slot to rotate about an axis normal to the longitudinal axis of the housing; e. said actuator having a finger engaging portion on one side of its pivotal mounting disposed outside of the housing adapted to be engaged by a finger of an operator for selectively rotating same in opposite directions; f. said actuator having a lever portion at the opposite side of its pivotal mounting disposed within the housing; and g. an actuating arm within the housing extending in the longitudinal direction thereof having one end pivotally connected to said lever portion, the other end of said actuating arm extending laterally from said arm and being disposed between the movable electrical contacts of said switches to alternately move a movable electrical contact to bridge its respective pair of stationary contacts.
Claim 2
Dependent Claim
281 words
An electrical switch device comprising: a. an elongated tube having a cylindrical bore therein forming a tubular housinG and having a slot in the wall thereof intermediate its ends, said housing including a pair of juxtaposed internal trunnions formed therein; b. a pair of juxtaposed electrical switches mounted in said housing, each of said switches having a threaded extension formed on one end thereof, each of said switches having a pair of stationary electrical contacts for bridging the gap therebetween, each of said movable contacts being normally biased out of contact with its corresponding pair of stationary electrical contacts; c. a pair of clamping nuts for securing said electrical switches within said housing, each of said switches being mounted in said housing with its threaded extension in a corresponding trunnion, each trunnion being disposed between its corresponding switch and clamping nut; d. a rocker-type switch actuator pivotally mounted in said slot to rotate about an axis normal to the longitudinal axis of the housing; e. said actuator having a finger engaging portion on one side of its pivotal mounting disposed outside of the housing adapted to be engaged by a finger of an operator for selectively rotating same in opposite directions; f. said actuator having a lever portion at the opposite side of its pivotal mounting disposed within the housing; and g. an actuating arm within the housing extending in the longitudinal direction thereof having one end pivotally connected to said lever portion, the other end of said actuating arm extending laterally from said arm and being disposed between the movable electrical contacts of said switches to alternately move a movable electrical contact to bridge its respective pair of stationary contacts.
Claim 3
Dependent Claim
31 words
The electrical switching device of claim 1 in which said switches include an insulating button actuating said movable contact being reciprocable in said threaded extension and biased to its outward position.
Claim 4
Dependent Claim
78 words
The electrical switching device of claim 1 including an insert assembly for removably inserting in said housing, comprising: a cylindrical body having a radius of curvature substantially the same as that of said housing, said switches mounted in said body, a first longitudinal slot in said body corresponding to the slot in said housing and receiving said switch actuator, and a second longitudinal slot in the bottom of said body for receiving said actuating arm for reciprocation therein.
Claim 5
Dependent Claim
35 words
The electrical switching device of claim 3 in which said switch actuator has a trunnion in its lower end and said actuating arm has a trunnion pin on said one end seating in said trunnion.
Claim 6
Dependent Claim
93 words
The electrical switching device of claim 1 including an insert assembly for removably inserting in said housing, comprising: a cylindrical body having a radius of curvature substantially the same as that of said housing and having a head portion and a semicircular portion, said trunnions and said switches being mounted in said semicircular portion, a first longitudinal slot in said head portion corresponding to the slot in said housing and receiving said switch actuator, and a second longitudinal slot in the bottom of said body for receiving said actuating arm for reciprocation therein.
References Cited (Backward Citations)
US1813902A
Cited
GB426614A
Cited
GB446140A
Cited
US2820117A
Cited
GB962745A
Cited
FR1389212A
Cited
US3234356A
Cited
US3348010A
Cited
US3524955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |