US3643523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knob assembly for vernier control device
Assignee: Boeing North American Inc
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Filing: 1970-03-30
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Granted: 1972-02-22
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Expires: 1990-03-30
Abstract
Abstract A knob assembly particularly adaptable to a control device for moving the core of a push-pull cable with respect to the casing thereof in gross amounts, and, selectively, in accurately fine, or vernier, increments. The control device employs concentric inner and outer members that are rotatable in unison to provide vernier control, but the inner member must first be moved in one direction independently of the outer member and sequentially thereafter the inner and outer members must be moved axially in unison to effect gross control. The knob assembly has a fixed knob means secured to the inner member, and a floating knob means slidably mounted about the outer member. A lever arm is swingingly mounted on a fulcrum carried by the outer member and operatively joins the floating knob means to the inner member in order to effect the required coordination of movement between the inner and outer members in response to the natural application of forces to the knob assembly by an operator.
Inventors
- 👤 John Mihaila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
G; G05; G05G; G05G23/00; F; F16; F16C; F16C1/00; F16C1/10; F16C1/12; F16C1/16; G05G2700/00; G05G2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426; Y10T74/20468
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
93 words
A control knob assembly for rotating concentric inner and outer members in unison, and selectively, for moving the concentric inner member axially in one direction and sequentially thereafter axially in either direction in unison with the outer member comprising, a fixed knob with a skirt portion secured to the inner member, a floating knob with a barrel portion movably axially within said skirt portion, said floating knob being slidably mounted on the outer member, a lever arm swingingly mounted on said outer member and operatively engaging said floating knob and said inner member.
Claim 2
Dependent Claim
93 words
A control knob assembly for rotating concentric inner and outer members in unison, and selectively, for moving the concentric inner member axially in one direction and sequentially thereafter axially in either direction in unison with the outer member comprising, a fixed knob with a skirt portion secured to the inner member, a floating knob with a barrel portion movably axially within said skirt portion, said floating knob being slidably mounted on the outer member, a lever arm swingingly mounted on said outer member and operatively engaging said floating knob and said inner member.
Claim 3
Dependent Claim
33 words
A control knob assembly, as set forth in claim 1 in which a generally radial grasping surface is provided on said floating knob means and is presented axially of said fixed knob means.
Claim 4
Dependent Claim
262 words
A knob assembly for a vernier control device to actuatE a push-pull cable having a core and a casing, the vernier control device having a housing secured to the cable casing, a control sleeve slidably received in said housing, one end of the control sleeve operatively secured to the cable core, a selector rod received in said control sleeve and movable between an axially inner and an axially outer position, a spring means for cooperating with said selector rod to bias it toward the axially outer position whereby the thread engaging means normally mesh with the thread means in said housing, thread means on the interior of said housing and thread engaging means movable generally radially of said control sleeve in response to axial movement of said selector rod, said control knob assembly comprising, a fixed knob means secured to the selector rod, a fulcrum carried on said control sleeve, a floating knob means slidably mounted on said control sleeve, and a lever arm movably mounted on said fulcrum and operatively connecting said floating knob means to said selector rod, said fixed knob means has a skirt portion and said floating knob means has a generally radial grasping surface located axially of said skirt portion, said floating knob means has a barrel portion movable within said skirt portion and in which said fulcrum is spaced axially beyond said control sleeve and medially of said barrel portion and the selector rod, said lever arm having opposed ends, one end cooperatively engaging said barrel portion and the opposite end cooperatively engaging said selector rod.
Claim 5
Dependent Claim
262 words
A knob assembly for a vernier control device to actuatE a push-pull cable having a core and a casing, the vernier control device having a housing secured to the cable casing, a control sleeve slidably received in said housing, one end of the control sleeve operatively secured to the cable core, a selector rod received in said control sleeve and movable between an axially inner and an axially outer position, a spring means for cooperating with said selector rod to bias it toward the axially outer position whereby the thread engaging means normally mesh with the thread means in said housing, thread means on the interior of said housing and thread engaging means movable generally radially of said control sleeve in response to axial movement of said selector rod, said control knob assembly comprising, a fixed knob means secured to the selector rod, a fulcrum carried on said control sleeve, a floating knob means slidably mounted on said control sleeve, and a lever arm movably mounted on said fulcrum and operatively connecting said floating knob means to said selector rod, said fixed knob means has a skirt portion and said floating knob means has a generally radial grasping surface located axially of said skirt portion, said floating knob means has a barrel portion movable within said skirt portion and in which said fulcrum is spaced axially beyond said control sleeve and medially of said barrel portion and the selector rod, said lever arm having opposed ends, one end cooperatively engaging said barrel portion and the opposite end cooperatively engaging said selector rod.
Claim 6
Dependent Claim
72 words
A knob assembly, as set forth in claim 3, in which said lever arm has a head portion engaging said barrel portion, the interaction of said head portion and said barrel portion maintaining said lever arm against displacement radially inwardly of said barrel portion, and the proximity of said head portion with said skirt portion on said fixed knob means maintaining said lever arm against displacement radially outwardly of said barrel portion.
Claim 7
Dependent Claim
59 words
A knob assembly, as set forth in claim 3, in which said lever arm has a head member, said barrel portion of the floating knob means having a recess, said head member being received within said recess, the cooperative interaction of said head member and said recess restricting movement of said lever arm to swinging motion in one plane.
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |