US3625262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor wrapping bit and method for forming a surface thereon
Assignee: Gardner Denver Inc
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Filing: 1969-05-29
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Granted: 1971-12-07
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Expires: 1989-05-29
Abstract
Abstract A rotary bit for wrapping conductor wire about a terminal in helical convolutions to form an electrical connection. The bit includes a longitudinal terminal-receiving bore and a conductor wire-receiving groove in radially offset parallelism therewith. A wire-camming surface slopes radially inwardly from the transverse end face of the bit to the terminal bore and includes a helical rise for continuously camming and supporting a major portion of successive wire convolutions. A wire guide surface intersects the conductor groove and sloped camming surface for feeding the wire into camming position. The sloped camming surface is formed by a rotary form machining tool which is simultaneously rotated relative to the bit longitudinal axis and axially moved relative to the bit end face.
Inventors
- 👤 William J Baker
- 👤 Richard J Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:24
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/033; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53213; Y10T29/53235
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
A bit for wrapping a wire about a terminal in helical convolutions comprising: a. a bit end face; b. a terminal-receiving bore in said end face; c. a wire-receiving groove opening to said end face; d. a helically sloped wire camming surface disposed about said terminal-receiving bore; and, e. surface means intersecting said wire-receiving groove and said wire-camming surface and sloping axially with respect to the longitudinal axis of said bit from said intersection with said wire-camming surface to said intersection with said wire receiving groove, said surface means including a substantially funnel-shaped section converging from said intersection with said wire-receiving groove to said intersection with said wirecomming surface; for guiding said wire into a position for camming said wire onto said terminal by said wire-camming surface.
Claim 2
Dependent Claim
127 words
A bit for wrapping a wire about a terminal in helical convolutions comprising: a. a bit end face; b. a terminal-receiving bore in said end face; c. a wire-receiving groove opening to said end face; d. a helically sloped wire camming surface disposed about said terminal-receiving bore; and, e. surface means intersecting said wire-receiving groove and said wire-camming surface and sloping axially with respect to the longitudinal axis of said bit from said intersection with said wire-camming surface to said intersection with said wire receiving groove, said surface means including a substantially funnel-shaped section converging from said intersection with said wire-receiving groove to said intersection with said wirecomming surface; for guiding said wire into a position for camming said wire onto said terminal by said wire-camming surface.
Claim 3
Dependent Claim
27 words
The invention set forth in claim 1 wherein: the longitudinal axis of said funnel-shaped section lies in a plane parallel to the longitudinal axis of said bit.
Claim 4
Dependent Claim
101 words
In a bit for wrapping a wire about a terminal in helical convolutions: a. a bit end face; b. a terminal-receiving bore in said end face; c. a wire-receiving groove opening to said end face; and, d. a wire camming and support surface disposed about said terminal-receiving bore and sloping radially inwardly with respect to the longitudinal axis of said bit, said camming and support surface having a helical lead corresponding substantially to the lead of a wire convolution for compressively embracing a major portion of the periphery of a wire convolution and pressing said wire convolution radially against said terminal.
Claim 5
Dependent Claim
101 words
In a bit for wrapping a wire about a terminal in helical convolutions: a. a bit end face; b. a terminal-receiving bore in said end face; c. a wire-receiving groove opening to said end face; and, d. a wire camming and support surface disposed about said terminal-receiving bore and sloping radially inwardly with respect to the longitudinal axis of said bit, said camming and support surface having a helical lead corresponding substantially to the lead of a wire convolution for compressively embracing a major portion of the periphery of a wire convolution and pressing said wire convolution radially against said terminal.
Claim 6
Dependent Claim
108 words
A bit for wrapping a wire about a terminal in helical convolutions comprising: a. a bit end face; b. a terminal-receiving bore in said end face; c. a wire-receiving groove opening to said end face; d. surface means on said bit for camming said wire onto said terminal; and, e. wire guide surface means intersecting said wire-receiving groove and sloping axially toward said bit end face for guiding said wire into a position for camming said wire onto said terminal by said wire-camming surface means, said wire guide surface Means comprising a substantially funnel-shaped portion converging from said intersection with said wire-receiving groove toward said bit end face.
Claim 7
Dependent Claim
108 words
A bit for wrapping a wire about a terminal in helical convolutions comprising: a. a bit end face; b. a terminal-receiving bore in said end face; c. a wire-receiving groove opening to said end face; d. surface means on said bit for camming said wire onto said terminal; and, e. wire guide surface means intersecting said wire-receiving groove and sloping axially toward said bit end face for guiding said wire into a position for camming said wire onto said terminal by said wire-camming surface means, said wire guide surface Means comprising a substantially funnel-shaped portion converging from said intersection with said wire-receiving groove toward said bit end face.
References Cited (Backward Citations)
CA578611A
Cited
US2758797A
Cited
US3095913A
Cited
US3078052A
Cited
US3143307A
Cited
US3244202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |