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US 4,934,203 AGranted
Power arm
OwnerThomas R. Bailey, Richard C. Hallinventors
Life of this patent
Estimating the term…
Abstract
This invention is directed to a mechanical means for moving a member such as a gate. The mechanical means comprises a screw which can be extended and can be retracted for moving and for rotating the member. There is a power means for rotating the screw and a control for the power means.
Claims36
A power arm comprising:
- a. an electric motor having a drive shaft;
- b. a gear box having a driven shaft;
- c. said electric motor and said gear box operatively connecting together;
- d. an adapter operatively connecting with said drive shaft and with said driven shaft;
- e. a housing having a cavity for receiving said electric motor and said gear box;
- f. said electric motor and said gear box being positioned in said cavity in said housing;
- g. a guide tube operatively connecting with said gear box;
- h. a screw operatively connecting with said gear box and being in a driven relationship with respect to said gear box;
- i. a ball nut mounted on said screw and being capable of moving on said screw;
- j. said ball nut being inside of said guide tube and being capable of moving inside of said guide tube;
- k. a tubular moveable member connecting with said ball nut and moving with said ball nut;
- l. a first attaching means operatively connecting with said housing;
- and,
- m. a second attaching means operatively connecting with said tubular member.
11 more elements
A process for making a power arm and comprising:
- a. selecting an electric motor having a drive shaft;
- b. selecting a gear box having a driven shaft;
- c. operatively connecting together said electric motor and said gear box;
- d. operatively connecting together an adapter with said drive shaft and with said driven shaft;
- e. selecting a housing having a cavity for receiving said electric motor and said gear box;
- f. positioning said electric motor and said gear box in said cavity;
- g. operatively connecting a guide tube with said gear box;
- h. operatively connecting a screw with respect to said gear box and with said screw being in a driven relationship to said gear box;
- i. mounting a ball nut on said screw and with said ball nut being capable of moving on said screw;
- j. positioning said ball nut inside of said guide tube and being capable of moving inside of said guide tube;
- k. operatively connecting a tubular member with said ball nut and said tubular member being capable of moving with said ball nut;
- l. operatively connecting a first attaching means with said housing;
- and,
- m. operatively connecting a second attaching means with said tubular member.
11 more elements
A power arm made by the process comprising:
- a. selecting an electric motor having a drive shaft;
- b. selecting a gear box having a driven shaft;
- c. operatively connecting together said electric motor and said gear box;
- d. operatively connecting together an adapter with said drive shaft and with said driven shaft;
- e. selecting a housing having a cavity for receiving said electric motor and said gear box;
- f. positioning said electric motor and said gear box in said cavity;
- g. operatively connecting a guide tube with said gear box;
- h. operatively connecting a screw with said gear box and with said screw being in a driven relationship with respect to said gear box;
- i. mounting a ball nut on said screw and with said ball nut being capable of moving on said screw;
- j. positioning said ball nut inside of said guide tube and said ball nut being capable of moving inside of said guide tube;
- k. operatively connecting a tubular member with said ball nut and said tubular member being capable of moving with said ball nut;
- l. operatively connecting a first attaching means with said housing;
- and,
- m. operatively connecting a second attaching means with said tubular member.
11 more elements
A combination of a rotatable member and a power arm for rotating said rotatable member:
- A. said power arm comprising:
- a. an electric motor having a drive shaft;
- b. a gear box having a driven shaft;
- c. said electric motor and said gear box operatively connecting together;
- d. an adapter operatively connecting with said drive shaft and with said driven shaft;
- e. a housing having a cavity for receiving said electric motor and said gear box;
- f. said electric motor and said gear box being positioned in said cavity in said housing;
- g. a guide tube operatively connecting with said gear box;
- h. a screw operatively connecting with said gear box and being in a driven relationship with respect to said gear box;
- i. a ball nut mounted on said screw and being capable of moving on said screw;
- j. said ball nut being inside of said guide tube and being capable of moving inside of said guide tube;
- k. a tubular moveable member connecting with said ball nut and moving with said ball nut;
- l. a first attaching means operatively connecting with said housing;
- and,
- m. a second attaching means operatively connecting with said tubular member;
- B. said combination comprising:
- n. a bearing means;
- o. said first attaching means operatively connecting with said bearing means;
- and,
- p. said second attaching means operatively connecting with said rotatable member.
17 more elements
A process for making a combination of a rotatable member and a power arm for rotating said rotatable member, said process comprising:
- a. selecting an electric motor having a drive shaft;
- b. selecting a gear box having a driven shaft;
- c. operatively connecting together said electric motor and said gear box;
- d. operatively connecting together an adapter with said drive shaft and with said driven shaft;
- e. selecting a housing having a cavity for receiving said electric motor and said gear box;
- f. positioning said electric motor and said gear box in said cavity;
- g. operatively connecting a guide tube with said gear box;
- h. operatively connecting a screw with said gear box and with said screw being in a driven relationship with respect to said gear box;
- i. mounting a ball nut on said screw and with said ball nut being capable of moving on said screw;
- j. positioning said ball nut inside of said guide tube and being capable of moving inside of said guide tube;
- k. operatively connecting a tubular member with said ball nut and said tubular member being capable of moving with said ball nut;
- l. operatively connecting a first attaching means with said housing;
- m. operatively connecting a second attaching means with said tubular member;
- n. selecting a bearing means;
- o. operatively connecting said bearing means and said first attaching means;
- and,
- p. operatively connecting said rotatable member and said second attaching means.
14 more elements
A combination of a rotatable member and a power arm for rotating said rotatable member made by the process comprising:
- a. selecting an electric motor having a drive shaft;
- b. selecting a gear box having a driven shaft;
- c. operatively connecting together said electric motor and said gear box;
- d. operatively connecting together an adapter with said drive shaft and with said driven shaft;
- e. selecting a housing having a cavity for receiving said electric motor and said gear box;
- f. positioning said electric motor and said gear box in said cavity;
- g. operatively connecting a guide tube with said gear box;
- h. operatively connecting a screw with said gear box and with said screw being in a driven relationship to said gear box;
- i. mounting a ball nut on said screw and with said ball nut being capable of moving on said screw;
- j. positioning said ball nut inside of said guide tube and being capable of moving inside of said guide tube;
- k. operatively connecting a tubular member with said ball nut and said tubular member being capable of moving with said ball nut;
- l. operatively connecting a first attaching means with said housing;
- m. operatively connecting a second attaching means with said tubular member;
- n. selecting a bearing means;
- o. operatively connecting said bearing means and said first attaching means;
- and,
- p. operatively connecting said rotatable member and said second attaching means.
14 more elements
Dependencies are inferred from the claim text.