US4096652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable snowplow wing and mounting therefor
Assignee: H K NUTTALL EQUIPMENT CO Inc
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Filing: 1976-11-08
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Granted: 1978-06-27
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Expires: 1996-11-08
Abstract
Abstract A retractable snowplow wing and mounting therefor which can be installed on substantially any truck with a longitudinal frame. The wing which may basically be of any desired construction is supported at both its inboard and outboard ends to permit raising it and swinging it horizontally from plowing position to a position substantially parallel to the truck body. The mechanism comprises first means attached to the inboard end of the wing and slidably mounted for vertical movement on support means carried by the truck frame and second means attached to the outboard end of the wing and comprising an extensible strut and motor means both of which are pivotally mounted on a bracket secured to the truck frame and extending laterally therefrom. Said first means comprises a hanger mounted for horizontal pivotal movement on a vertically movable slide carried on said support means; and said motor means, which comprises a hydraulic cylinder, is slidably connected at its outer end with said strut and is pivotally mounted at its other end on said bracket whereby to raise and retract the outboard end of said wing. Said bracket is rigidly secured, as by welding, to said truck frame and depends therefrom with a member laterally removed from said frame supporting said strut and motor means. The wing is pivotally carried on said hanger to permit limited horizontal pivoting movement thereof against the resistance of a spring to allow the blade of said wing to pass over minor obstructions or irregularities in the pavement; and detent means is provided to selectively prevent such pivoting movement. A wing, according to the invention, can be mounted on either side of a truck or wings can be mounted on both sides.
Inventors
- 👤 William L. Raines
- 👤 John Karges, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:07
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06; E01H5/063; E01H5/067
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
178 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal members, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end and second means, separate and distinct from said first means, attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said first means comprising a member slidably mounted for vertical movement on support means carried by said frame, said second means comprising a strut and motor means both pivotally mounted on a rigid, non-movable bracket that is secured to both longitudinal members of said frame and extends laterally therefrom, said strut constituting the sole support for the outboard end of said wing and being pivotally connected to said wing adjacent the bottom of said wing, and said motor means being operatively connected to and slidable on said strut adjacent its outer end for producing motion of said strut whereby to raise and move horizontally said outboard end of said wing.
Claim 2
Dependent Claim
178 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal members, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end and second means, separate and distinct from said first means, attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said first means comprising a member slidably mounted for vertical movement on support means carried by said frame, said second means comprising a strut and motor means both pivotally mounted on a rigid, non-movable bracket that is secured to both longitudinal members of said frame and extends laterally therefrom, said strut constituting the sole support for the outboard end of said wing and being pivotally connected to said wing adjacent the bottom of said wing, and said motor means being operatively connected to and slidable on said strut adjacent its outer end for producing motion of said strut whereby to raise and move horizontally said outboard end of said wing.
Claim 3
Dependent Claim
22 words
A snowplow wing and mounting as defined in claim 1 wherein said first means comprises a hanger mounted for horizontal pivotal movement.
Claim 4
Dependent Claim
30 words
A snowplow wing and mounting as defined in claim 2 wherein said hanger is pivotally attached to said wing to permit pivotal movement of said wing about a horizontal axis.
Claim 5
Dependent Claim
31 words
A snowplow wing and mounting as defined in claim 3 wherein adjustable resilient means is provided on said hanger to resiliently restrain pivotal movement of said wing about a horizontal axis.
Claim 6
Dependent Claim
21 words
A snowplow wing and mounting as defined in claim 2 wherein said hanger is pivotally mounted on said vertically movable member.
Claim 7
Dependent Claim
36 words
A snowplow wing and mounting as defined in claim 1 wherein said strut is pivotally connected with said outboard end of said wing and is provided with means for resiliently resisting inward movement of said end.
Claim 8
Dependent Claim
71 words
A snowplow wing and mounting as defined in claim 1 wherein said motor means comprises a hydraulic cylinder pivotally mounted on said bracket and having a piston rod extending laterally outwardly from said bracket, said piston rod at its outer end being slidably mounted on said strut and adapted, when fluid pressure is imposed on the outer face of said piston, to retract and raise the outboard end of said wing.
Claim 9
Dependent Claim
34 words
A snowplow wing and mounting as defined in claim 5 wherein said vertically movable member is slidably carried by a vertical post member attached to said frame and is moved by second motor means.
Claim 10
Dependent Claim
104 words
A snowplow wing and mounting as defined in claim 8 wherein said post member is provided with a pulley adjacent the upper end thereof, wherein said second motor means comprises a hydraulic cylinder carried by said post member, said cylinder having a downwardly extending piston rod which carries a sheave, and wherein there is provided a cable secured at one end to said vertically movable member and at its other end to said post member adjacent the top thereof, said cable being trained around said pulley and said sheave whereby downward movement of said piston rod raises said vertically movable member and said wing.
Claim 11
Dependent Claim
183 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal members, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end, said first means comprising a hanger mounted for vertical movement and horizontal pivotal movement on support means carried by said frame, said hanger being pivotally attached to said wing to permit pivotal movement of said wing about a horizontal axis, and second means, separate and distinct from said first means, attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said second means comprising a strut and motor means both pivotally mounted on a rigid bracket that is secured to said frame and extends laterally therefrom, said motor means being operatively connected to said strut adjacent its outer end for producing motion of said strut whereby to raise and move horizontally said outboard end of said wing, and a latch on said hanger to selectively prevent pivotal movement of said wing about said horizontal axis.
Claim 12
Dependent Claim
183 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal members, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end, said first means comprising a hanger mounted for vertical movement and horizontal pivotal movement on support means carried by said frame, said hanger being pivotally attached to said wing to permit pivotal movement of said wing about a horizontal axis, and second means, separate and distinct from said first means, attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said second means comprising a strut and motor means both pivotally mounted on a rigid bracket that is secured to said frame and extends laterally therefrom, said motor means being operatively connected to said strut adjacent its outer end for producing motion of said strut whereby to raise and move horizontally said outboard end of said wing, and a latch on said hanger to selectively prevent pivotal movement of said wing about said horizontal axis.
Claim 13
Dependent Claim
98 words
A snowplow wing and mounting as defined in claim 10 wherein said strut is pivotally connected with said outboard end of said wing and is provided with means for resiliently resisting inward movement of said end; and wherein said motor means comprises a hydraulic cylinder pivotally mounted on said bracket and having a piston rod extending laterally outwardly from said bracket, said piston rod at its outer end being slidably mounted on said strut and adapted, when fluid pressure is imposed on the outer face of said piston, to retract and raise the outboard end of said wing.
Claim 14
Dependent Claim
73 words
A snowplow wing and mounting as defined in claim 11 wherein said first means comprises a hanger pivotally mounted for horizontal pivotal movement on said vertically movable member, wherein said vertically movable member is slidably carried by a vertical post member attached to said frame and is moved by second motor means, and wherein said hanger is pivotally attached to said wing to permit pivotal movement of said wing about a horizontal axis.
Claim 15
Dependent Claim
175 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal members, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end and second means attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said first means comprising a member slidably mounted for vertical movement on support means carried by said frame, said second means comprising a strut and motor means both pivotally mounted on a bracket that is secured to said frame and extends laterally therefrom, said bracket being rigid and comprising first members rigidly secured to and depending from the opposing longitudinal frame members and an upwardly and inwardly inclined second member projecting laterally of said frame members and carried by said first members, and said motor means being operatively connected to said strut for producing motion of the outer end of the latter whereby to raise and move horizontally said outboard end of said wing.
Claim 16
Dependent Claim
175 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal members, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end and second means attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said first means comprising a member slidably mounted for vertical movement on support means carried by said frame, said second means comprising a strut and motor means both pivotally mounted on a bracket that is secured to said frame and extends laterally therefrom, said bracket being rigid and comprising first members rigidly secured to and depending from the opposing longitudinal frame members and an upwardly and inwardly inclined second member projecting laterally of said frame members and carried by said first members, and said motor means being operatively connected to said strut for producing motion of the outer end of the latter whereby to raise and move horizontally said outboard end of said wing.
Claim 17
Dependent Claim
173 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal member, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end and second means attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said first means comprising a member slidably mounted for vertical movement on support means carried by said frame, said second means comprising a strut and motor means both pivotally mounted on a bracket that is secured to said frame and extends laterally therefrom, said bracket being rigid and comprising a member, supported in part by a bar depending from one of said longitudinal frame members, to which said strut and said motor means are pivotally attached, one below the other, and said motor means being operatively connected to said strut for producing motion of the outer end of the latter whereby to raise and move horizontally said outboard end of said wing.
Claim 18
Dependent Claim
173 words
In a retractable snowplow wing: means for mounting said wing on a vehicle having a longitudinal frame comprising opposed longitudinal member, said mounting means comprising first means attached to the inboard end of said wing for supporting and raising said inboard end and second means attached to the outboard, trailing end of said wing for supporting and raising said outboard end, said first means comprising a member slidably mounted for vertical movement on support means carried by said frame, said second means comprising a strut and motor means both pivotally mounted on a bracket that is secured to said frame and extends laterally therefrom, said bracket being rigid and comprising a member, supported in part by a bar depending from one of said longitudinal frame members, to which said strut and said motor means are pivotally attached, one below the other, and said motor means being operatively connected to said strut for producing motion of the outer end of the latter whereby to raise and move horizontally said outboard end of said wing.
Claim 19
Dependent Claim
98 words
A snowplow wing and mounting as defined in claim 14 wherein said strut is pivotally connected with said outboard end of said wing and is provided with means for resiliently resisting toward movement of said end; and wherein said motor means comprises a hydraulic cylinder pivotally mounted on said bracket and having a piston rod extending laterally outwardly from said bracket, said piston rod at its outer end being slidably mounted on said strut and adapted, when fluid pressure is imposed on the outer face of said piston, to retract and raise the outboard end of said wing.
Claim 20
Dependent Claim
73 words
A snowplow wing and mounting as defined in claim 15 wherein said first means comprises a hanger pivotally mounted for horizontal pivotal movement on said vertically movable member, wherein said vertically movable member is slidably carried by a vertical post member attached to said frame and is moved by second motor means, and wherein said hanger is pivotally attached to said wing to permit pivotal movement of said wing about a horizontal axis.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |