Patent US3687450A successfully refreshed from Google Patents.
US3687450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring type resistance exercising device
Assignee: SNEA DE GROTE
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Filing: 1970-08-21
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Granted: 1972-08-29
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Expires: 1990-08-21
Abstract
Abstract An exercising machine comprising a housing having a removable bottom which serves to hold removable pulley brackets in place. Share springs are stored in compartments provided in the housing. Lines are connected at the ends of the housing, reeved over pulleys that are connected to pulley blocks and springs, and then passed through holes in the platform on top of the housing. Hand grips are attached to the lines for grasping by the user so that during an exercising program the springs will offer resistance to a pulling force on the lines.
Inventors
- 👤 William A Schollmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:40
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/02; A63B21/023; A63B21/15; A63B21/151; A63B21/154; A63B71/00; A63B71/02; A63B71/023; A63B2071/026; A63B2071/027; A63B21/00058; A63B21/00061; A63B21/04; A63B21/0407; A63B21/0428; A63B21/055; A63B2208/00; A63B2208/02; A63B2208/0204; A63B2208/0228
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
An exercising machine comprising a housing having a removable bottom member and a platform member provided with holes therethrough, said housing having opposed ends and opposed pairs of vertically extending grooves therein adjacent said ends, pulley brackets including plates, said plates being removably received in said grooves, said bottom member supporting said bracket plates in said grooves, a spring secured to each of said bracket plates and each one of said springs being secured at each end of said housing, respectively, ropes a separate rope secured at one end thereof to each end of said housing and reeved over and pulley block secured to said spring, the opposite end of said rope extending through one of said holes and being retractable by a user to tension said spring, and hand grips secured to the opposite end of said rope above said platform.
Claim 2
Dependent Claim
142 words
An exercising machine comprising a housing having a removable bottom member and a platform member provided with holes therethrough, said housing having opposed ends and opposed pairs of vertically extending grooves therein adjacent said ends, pulley brackets including plates, said plates being removably received in said grooves, said bottom member supporting said bracket plates in said grooves, a spring secured to each of said bracket plates and each one of said springs being secured at each end of said housing, respectively, ropes a separate rope secured at one end thereof to each end of said housing and reeved over and pulley block secured to said spring, the opposite end of said rope extending through one of said holes and being retractable by a user to tension said spring, and hand grips secured to the opposite end of said rope above said platform.
Claim 3
Dependent Claim
23 words
An exercising machine according to claim 1, wherein said housing has storage compartments therein, and means for storing spare springs in said compartments.
Claim 4
Dependent Claim
20 words
An exercising machine according to claim 2, wherein said platform has a flush deck positioned on top of said housing.
Claim 5
Dependent Claim
39 words
An exercising machine according to claim 3, wherein said housing has an enlarged central portion running the length of said housing for receiving said springs, pulleys, and brackets, said compartments being located on opposite sides of said central portion.
Claim 6
Dependent Claim
16 words
An exercising machine according to claim 4, wherein said housing has opposed trapezoidal shaped end portions.
Claim 7
Dependent Claim
20 words
An exercising machine according to claim 5, wherein each of said grooves is provided in each of said end portions.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |