US4189800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained breadboard wiring tool
Assignee: 3M Co
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Filing: 1978-11-06
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Granted: 1980-02-26
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Expires: 1998-11-06
Abstract
Abstract Apparatus for inserting thin insulated wire into narrow slots of solderless electrical contacts and subsequently cutting the length of wire needed. The cutting tool is a prolongation of the shaft supporting a supply spool of the requisite wire.
Inventors
- 👤 Terry E. Roswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:07
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/01; H01R43/015; B; B25; B25B; B25B25/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5147; Y10T29/5148; Y10T29/515; Y10T29/5151; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53213; Y10T29/53222; Y10T29/53226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
Breadboard wiring tool comprising: (1) a shaft having a longitudinal axis and threaded at one end; (2) cutting means at the end of said shaft distal to said threaded end and displaced laterally from the axis thereof; (3) an elongated supply spool of insulated wire on said shaft; (4) cylindrical retaining means screwed to the threaded end of said shaft; (5) spring means urging said supply spool away from said retaining means; (6) a hollow head movably penetrated by said shaft and with retaining means for holding said cutting means in and protruding from said head and stop means for preventing entrance of said spool on said shaft into said head; (7) a tip with shallow and deeper slots therein on said head offset from the center thereof and with said shallow slot radially aligned on said head; (8) guide means conducting insulated wire from said supply spool toward said shallow slot; and (9) cylindrical casing enclosing said shaft and supply spool secured to said head and extending over at least a portion but not all of said cylindrical retaining means.
Claim 2
Dependent Claim
181 words
Breadboard wiring tool comprising: (1) a shaft having a longitudinal axis and threaded at one end; (2) cutting means at the end of said shaft distal to said threaded end and displaced laterally from the axis thereof; (3) an elongated supply spool of insulated wire on said shaft; (4) cylindrical retaining means screwed to the threaded end of said shaft; (5) spring means urging said supply spool away from said retaining means; (6) a hollow head movably penetrated by said shaft and with retaining means for holding said cutting means in and protruding from said head and stop means for preventing entrance of said spool on said shaft into said head; (7) a tip with shallow and deeper slots therein on said head offset from the center thereof and with said shallow slot radially aligned on said head; (8) guide means conducting insulated wire from said supply spool toward said shallow slot; and (9) cylindrical casing enclosing said shaft and supply spool secured to said head and extending over at least a portion but not all of said cylindrical retaining means.
References Cited (Backward Citations)
US3168750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |