← Back to Patent Explorer
US3583703A Expired / Lapsed US ⏱️ 0.0 years remaining

Practice pitching devices

Assignee: Individual
•
Filing: 1968-11-01
•
Granted: 1971-06-08
•
Expires: 1988-11-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A baseball practice pitcher''s target having a plurality of frame parts comprising tubular members releasable connected to one another in an end-to-end relationship to from a substantially square frame. The frame is provided with two tubular members perpendicularly attached to the frame at two of its corners for supporting the frame in an upright position. A target simulating an average strike zone comprising a string joined as an endless loop is centrally suspended within the frame by four support lines secured at spaced points about the perimeter of the target and attached to hook eye elements secured approximate each corner of the frame. The target is divided into four sections by two string elements positioned perpendicular to each other and having their ends attached midway the sides of the rectangular strike zone target. A target of smaller dimensions simulating the strike zone for little league ball players is also provided.

Inventors

  • 👤 William S Brown
  • 👤 Eldon L Kemph

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 17:05
CPC Classifications
A; A63; A63B; A63B63/00

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 410 words
A baseball pitching target defining an average strike zone which can be readily disassembled into a plurality of component frame parts of predetermined, generally uniform length, comprising: a first frame portion formed by a pair of frame parts of predetermined length affixed in end-to-end relationship and including a pair of hook eyes secured to said frame portion proximate each end thereof, each of said frame parts consisting of tube means of said predetermined length, sleeve means rigidly secured on the end of said tube means, said sleeve means being positioned approximately half way over said tube means, and clamping screw means disposed through said sleeve means outer portion; a second frame portion formed by a similar pair of said frame parts of predetermined length affixed in end-to-end relationship and including a pair of hook eyes secured to said second frame portion proximate each end thereof; a base frame portion formed by a pair of frame parts of predetermined length affixed in end-to-end relationship; a pair of support parts of predetermined length; a pair of junction means each affixed proximate a midpoint of each of said support parts, each of said junction means providing rigid affixture to opposite ends of said base frame portion, and each of said junction means providing rigid affixture to the respective lower ends of said first and second frame portions; a top frame portion formed by a pair of frame parts of predetermined length affixed in end-to-end relationship and having opposite ends secured to the upper ends of said respective first and second frame members; string means joined as an endless loop and having a perimeter equal to the length of an average strike zone perimeter; four support lines secured at spaced points about the perimeter of said string line means, each of said support lines being secured to one of said hook eyes proximate each end of said first and second frame portions to support said string line means as an upright rectangle approximating said average strike zone; and additional string means joined in an endless loop of a size smaller than said first mentioned string means loop and approximately equal to that of a Little League players strike zone, and an additional set of four support lines each longer in length than said first mentioned support lines and secured at spaced points about the perimeter of said additional string means so that said practice pitching device can be converted to Little League practice use.
Claim 2
Dependent Claim 410 words
A baseball pitching target defining an average strike zone which can be readily disassembled into a plurality of component frame parts of predetermined, generally uniform length, comprising: a first frame portion formed by a pair of frame parts of predetermined length affixed in end-to-end relationship and including a pair of hook eyes secured to said frame portion proximate each end thereof, each of said frame parts consisting of tube means of said predetermined length, sleeve means rigidly secured on the end of said tube means, said sleeve means being positioned approximately half way over said tube means, and clamping screw means disposed through said sleeve means outer portion; a second frame portion formed by a similar pair of said frame parts of predetermined length affixed in end-to-end relationship and including a pair of hook eyes secured to said second frame portion proximate each end thereof; a base frame portion formed by a pair of frame parts of predetermined length affixed in end-to-end relationship; a pair of support parts of predetermined length; a pair of junction means each affixed proximate a midpoint of each of said support parts, each of said junction means providing rigid affixture to opposite ends of said base frame portion, and each of said junction means providing rigid affixture to the respective lower ends of said first and second frame portions; a top frame portion formed by a pair of frame parts of predetermined length affixed in end-to-end relationship and having opposite ends secured to the upper ends of said respective first and second frame members; string means joined as an endless loop and having a perimeter equal to the length of an average strike zone perimeter; four support lines secured at spaced points about the perimeter of said string line means, each of said support lines being secured to one of said hook eyes proximate each end of said first and second frame portions to support said string line means as an upright rectangle approximating said average strike zone; and additional string means joined in an endless loop of a size smaller than said first mentioned string means loop and approximately equal to that of a Little League players strike zone, and an additional set of four support lines each longer in length than said first mentioned support lines and secured at spaced points about the perimeter of said additional string means so that said practice pitching device can be converted to Little League practice use.
Claim 3
Dependent Claim 60 words
A practice pitching device as set forth in claim 1 which is further characterized in that each of said first, second, top and base frame portions can be disassembled into their constituent frame parts of predetermined length, and said plurality of frame parts can be inserted and tightly held between said support parts and respective junction means for secure packaging.
Claim 4
Dependent Claim 34 words
A practice pitching device as set forth in claim 2 which is further characterized in that said packaged frame and support parts are approximately 3 feet in length to enable convenient storage and portability.

References Cited (Backward Citations)

US3039770A Cited
US2978246A Cited
US3312467A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-06-07 1974-12-07 1975-06-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-07 1978-12-07 1979-06-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-07 1982-12-07 1983-06-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag