Patent JPS572142A successfully refreshed from Google Patents.
Patent US4195857A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4195857A Expired / Lapsed US ⏱️ 0.0 years remaining

Skateboard with adjustable tail section

Assignee: Individual
•
Filing: 1978-08-07
•
Granted: 1980-04-01
•
Expires: 1998-08-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A skateboard with an elongated platform having a tail section and a main body section coupled together by an angularly adjustable joint that holds the sections in a preselected angular relation and permits adjustment of the tail section to various angles relative to the plane of the body section. In one embodiment, the adjustable joint is an elongated plate having front and rear end sections secured to the body and tail sections, respectively, of the skateboard platform, and, extending between the front and rear sections, an intermediate section that is bendable to a preselected angle, but has sufficient strength and stiffness to resist bending under the normal forces exerted on the tail section during tilting of the skateboard. In an alternative embodiment, the adustable joint is an elongated plate with front and rear sections, with the front section being secured to the body section of the platform and the rear section being covered with a pliable nonslip plastic or rubber material to form the tail section of the platform, so that the tail section itself can be curved as well as angularly adjusted relative to the body section. In another alternative embodiment, the angularly adjustable joint is a hinge with front and rear hinge elements secured to the body and tail sections, respectively, of the skateboard platform, and connected together by a pivot pin. The pin has a threaded end engageable with a nut for locking the tail section in its preselected angular position by placing the hinge elements in compressive engagement.

Inventors

  • 👤 Albert R. Hechinger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:26
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/01; A63C2203/00; A63C2203/42

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 151 words
A skateboard comprising: an elongated platform having a main body section and a rear tail section angularly movable relative to said main body section; an angularly adjustable joint coupling said tail section to said main body section as a longitudinal extension thereof, said joint having an elongated plate with sufficient strength and stiffness to resist bending under the normal forces exerted on said tail section during use of the skateboard, said plate having front and rear end sections secured to said main body section and said tail section, respectively, and an intermediate section extending between said front and rear end sections, said intermediate section being bendable to a preselected angle to hold said tail section at said preselected angle relative to said body section; and wheel assemblies mounted on the bottom side of said main body section, in longitudinally spaced relation with each other and with the ends of said platform.
Claim 2
Dependent Claim 151 words
A skateboard comprising: an elongated platform having a main body section and a rear tail section angularly movable relative to said main body section; an angularly adjustable joint coupling said tail section to said main body section as a longitudinal extension thereof, said joint having an elongated plate with sufficient strength and stiffness to resist bending under the normal forces exerted on said tail section during use of the skateboard, said plate having front and rear end sections secured to said main body section and said tail section, respectively, and an intermediate section extending between said front and rear end sections, said intermediate section being bendable to a preselected angle to hold said tail section at said preselected angle relative to said body section; and wheel assemblies mounted on the bottom side of said main body section, in longitudinally spaced relation with each other and with the ends of said platform.
Claim 3
Dependent Claim 46 words
A skateboard as defined in claim 1, wherein the front end of said tail section, adjacent to said main body section, includes a forwardly projecting lip, whereby the gap between said platform sections is reduced as said tail section is bent upwardly to a preselected angle.
Claim 4
Dependent Claim 28 words
A skateboard as defined in claim 1 wherein said plate is constructed of aluminum with a thickness of between one-sixteenth of an inch and one-eighth of an inch.
Claim 5
Dependent Claim 140 words
A skateboard comprising: an elongated platform having a main body section and a rear tail section angularly movable relative to said main body section; an angularly adjustable joint coupling said tail section to said main body section as a longitudinal extension thereof, said joint having front and rear hinge elements secured to said main body section and said tail section, respectively, a pin connecting said front and rear hinge elements together to pivot said tail section with respect to said body section, and selectively operable means for locking said hinge elements to prevent relative movement from a preselected angular position, to hold said tail section at said preselected angle relative to said body section; and wheel assemblies mounted on the bottom side of said main body section, in longitudinally spaced relation with each other and the ends of said platform.
Claim 6
Dependent Claim 140 words
A skateboard comprising: an elongated platform having a main body section and a rear tail section angularly movable relative to said main body section; an angularly adjustable joint coupling said tail section to said main body section as a longitudinal extension thereof, said joint having front and rear hinge elements secured to said main body section and said tail section, respectively, a pin connecting said front and rear hinge elements together to pivot said tail section with respect to said body section, and selectively operable means for locking said hinge elements to prevent relative movement from a preselected angular position, to hold said tail section at said preselected angle relative to said body section; and wheel assemblies mounted on the bottom side of said main body section, in longitudinally spaced relation with each other and the ends of said platform.
Claim 7
Dependent Claim 13 words
A skateboard as defined in claim 4, wherein said pin comprises a bolt.
Claim 8
Dependent Claim 34 words
A skateboard as defined in claim 4, wherein said means for locking comprises a bolt threaded to accept a nut, whereby said hinge elements are placed in compressive engagement upon tightening of said nut.
Claim 9
Dependent Claim 25 words
A skateboard as defined in claim 6, wherein said hinge elements have cooperating surfaces with teeth, whereby said teeth interlock upon tightening of said nut.

References Cited (Backward Citations)

US3565454A Cited
US4092033A Cited
US4120510A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-04-01 1983-10-01 1984-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-04-01 1987-10-01 1988-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-04-01 1991-10-01 1992-04-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag