Patent US3913428A successfully refreshed from Google Patents.
US3913428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-set nut runner with open-end access and socket-like drive capability
Assignee: Individual
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Filing: 1975-01-27
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Granted: 1975-10-21
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Expires: 1995-01-27
Abstract
Abstract A nut or bolt head driver employing a drive belt of flat surfaced links carried around a multi-faced rotatable driving member in a housing and extending from one housing end in loop fashion around an arcuate tension plate fixed to the housing end. Belt tension adjusting means confine a nut or bolt to be driven between nut face-engaging ones of successive belt links and apices of the nut to be driven which maintain sliding point contact on the tension plate surface. At least one link of the belt is selectively disengageable to permit open-end access to a nut or bolt head with subsequent belt engagement and tension adjustment, whereupon the nut or bolt head may be driven in the fashion of a box wrench or socket drive upon laterally offset drive torque being imparted to the belt driving member.
Inventors
- 👤 Alton Brunson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:49
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B25B13/50; B25B13/52; B25B17/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
A nut driving tool with lateral offset drive capability comprising, a body housing; a drive belt means comprised of contiguous flat-surfaced links; belt driving means comprising a driving member rotatable with respect to said body housing, and formed with a plurality of contiguous flat edge faces; said drive belt means being carried around said driving member and extending in loop fashion externally of one end of said body housing; a concave arcuate tension plate means affixed to said body housing at said one end thereof, with said drive belt extending between transverse extremes of said tension plate means and respective side walls of said body housing; means for selectively translating said driving member to establish the longitudinal displacement between said tension plate means and said driving member; and means external of said body housing and communicating with said driving means by which rotary motion may be imparted to said driving member.
Claim 2
Dependent Claim
151 words
A nut driving tool with lateral offset drive capability comprising, a body housing; a drive belt means comprised of contiguous flat-surfaced links; belt driving means comprising a driving member rotatable with respect to said body housing, and formed with a plurality of contiguous flat edge faces; said drive belt means being carried around said driving member and extending in loop fashion externally of one end of said body housing; a concave arcuate tension plate means affixed to said body housing at said one end thereof, with said drive belt extending between transverse extremes of said tension plate means and respective side walls of said body housing; means for selectively translating said driving member to establish the longitudinal displacement between said tension plate means and said driving member; and means external of said body housing and communicating with said driving means by which rotary motion may be imparted to said driving member.
Claim 3
Dependent Claim
27 words
The nut driving tool of claim 1, wherein the lengths of said driving member flat edge faces are substantially equal the lengths of said drive belt links.
Claim 4
Dependent Claim
24 words
The nut driving tool of claim 2, wherein said drive belt means is comprised with means for selectively disengaging at least one link thereof.
Claim 5
Dependent Claim
39 words
The nut driving tool of claim 3, wherein said driving member has a dimension along the respective side flats thereof, corresponding substantially to the lengths of the flats of a nut to be driven by said nut driving tool.
Claim 6
Dependent Claim
45 words
The nut driving tool of claim 3, wherein said arcuate tension plate means is formed with a radius substantially equal that defining the respective apices of a nut to be confined between said tension plate and the externally extending portion of said drive belt means.
Claim 7
Dependent Claim
38 words
The nut driving tool of claim 5, wherein said arcuate tension plate means is symmetrically disposed with respect to the longitudinal axis of said body housing and extends over an arc less than 180* and greater than 60*.
Claim 8
Dependent Claim
18 words
The nut driving tool of claim 6, wherein said arc is substantially equal to and less than 120*.
Claim 9
Dependent Claim
64 words
The nut driving tool of claim 6, wherein said body housing is formed with internal channel-defining side wall members extending from the transverse extremes of said arcuate tension plate means toward said driving member, and disposed substantially parallel to respective side walls of said body housing, said drive belt means being confined between said sIde wall members and the respective body member side walls.
Claim 10
Dependent Claim
50 words
The nut driving tool of claim 8, comprising an arcuate wall member within said body housing and extending contiguously between said side wall members and concentrically about the radial extremes of said driving member, said drive belt means being confinably received between said driving member and said arcuate wall member.
Claim 11
Dependent Claim
51 words
The nut driving tool of claim 9, comprising mounting means for said arcuate wall member whereby said arcuate wall member is longitudinally displaceable with respect to said body housing in concert with said driving means, and means for constraining said arcuate wall members from rotation with respect to said body housing.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |