IP Library Granted Patent US 12,492,017
Granted Patent B2
US 12,492,017 · App. 18/320,406 · Granted Dec 9, 2025

Independent non-solar powered exploratory craft for orbital rendezvous and positioning framework

Inventors: Eric Joseph Nemanick (Santa Monica, CA); Henry Helvajian (Pasadena, CA); Andrea G. Hsu (El Segundo, CA); John H. Schilling (Lancaster, CA)
Assignee: THE AEROSPACE CORPORATION
B64G1/413
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Quick Facts
Patent No.
US 12,492,017
App. No.
18/320,406
Granted
Dec 9, 2025
Kind
B2
Abstract

An isotope power source configured to act as a vehicle includes a plurality of radioisotope power sources encased around one or more elements therein to form a tile-shaped spacecraft.

Claims (33)

1 . An isotope power source configured to act as a vehicle, comprising:

a plurality of radioisotope power sources encased around one or more elements therein to form a tile-shaped vehicle, wherein

each of the plurality of radioisotope power sources are distributed or are centrally located as a single central unit.

2 . The isotope power source vehicle of claim 1 , further comprising:

a structure holding a plurality of radioisotopes with reaction wheels and star tracker for orientation, an array of electric propulsion units for maneuvering.

3 . The isotope power source vehicle of claim 2 , wherein the structure has a radius or length to thickness ratio of greater than 5:1.

4 . The isotope power source vehicle of claim 2 , wherein the structure is 15 cm×15 cm×2 cm.

5 . The isotope power source vehicle of claim 2 , wherein the structure weighs less than 20 kg.

6 . The isotope power source vehicle of claim 2 , wherein each of the plurality of radioisotope power sources within the isotope power source vehicle weighs less than 1 kg.

7 . The isotope power source vehicle of claim 1 , wherein the one or more elements comprise:

one or more electrospray propulsion units configured to maneuver the isotope power source vehicle being a tile-shaped vehicle.

8 . The isotope power source vehicle of claim 7 , wherein the one or more electrospray propulsion units comprise a low propellant usage per orbital adjustment of <1 g causing the isotope power source to contain sufficient propellant to make more than 100 maneuvers.

9 . The isotope power source vehicle of claim 1 , wherein the one or more elements comprise:

a radio frequency (RF) transmitter or laser transmitter configured to communicate with one or more of a plurality of isotope power sources and computational algorithms to generate a three dimensional (3D) coordinate system.

10 . The isotope power source vehicle of claim 1 , wherein the craft is a spacecraft or a ground vehicle or in a liquid “ocean”.

11 . The isotope power source of claim 1 , wherein the isotope power source has a high aspect ratio of greater than >5:1 for length and width to thickness to function through isotope power generation, by using the large surface area to radiate heat for efficient heat to power conversion.

12 . An isotope power source configured to act as a vehicle, comprising:

a plurality of radioisotope power sources encased around one or more elements therein to form a tile-shaped vehicle, wherein

each of the plurality of radioisotope power sources are distributed or are centrally located as a single central unit, and

the one or more elements comprise one or more electrospray propulsion units configured to maneuver the tile-shaped vehicle.

13 . The isotope power source vehicle of claim 12 , wherein the one or more elements comprising:

a plurality of reaction wheels and a star tracker for orientation, and an array of electric propulsion units for maneuvering the isotope power source vehicle.

14 . The isotope power source vehicle of claim 13 , wherein the structure has a radius or length to thickness ratio of greater than 5:1.

15 . The isotope power source vehicle of claim 13 , wherein the structure is 15 cm×15 cm×2 cm.

16 . The isotope power source vehicle of claim 13 , wherein the structure weighs less than 20 kg.

17 . The isotope power source vehicle of claim 13 , wherein each of the plurality of radioisotope power sources within the isotope power source vehicle weighs less than 1 kg.

18 . The isotope power source vehicle of claim 12 , wherein the one or more electrospray propulsion units comprise a low propellant usage per orbital adjustment of <1 g causing the isotope power source to contain sufficient propellant to make more than 100 maneuvers.

19 . The isotope power source vehicle of claim 12 , wherein the one or more elements comprise:

a radio frequency (RF) transmitter or a laser transmitter configured to communicate with one or more of a plurality of isotope power source vehicles and the computational algorithms to generate a three dimensional (3D) coordinate system.

20 . The isotope power source vehicle of claim 12 , wherein the 3D coordinate system:

is reported to an isotope power source vehicle or other vehicle operating within the coordinate system, wherein

the vehicle can perform precision movement within the coordinate system.

21 . The isotope power source of claim 12 , wherein the isotope power source has a high aspect ratio of greater than >5:1 for length and width to thickness to function through isotope power generation, by using the large surface area to radiate heat for efficient heat to power conversion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2023
From: NEMANICK, ERIC JOSEPH; HELVAJIAN, HENRY; HSU, ANDREA G.; SCHILLING, JOHN H.
To: THE AEROSPACE CORPORATION
Reel/Frame 063700/0246 →
Continuity (1)
Related Publication 20240383622A1 · Nov 21, 2024
References Cited (7)
US 3510362A · Charland · 1970 [cited by examiner]
US 5246505A · Mowery, Jr. · 1993 [cited by applicant]
US 9650159B2 · Kaltenbach · 2017 [cited by applicant]
US 20240021336A1 · Nemanick · 2024 [cited by examiner]
US 20250121958A1 · Conkle · 2025 [cited by examiner]
US 20250140429A1 · Morrison · 2025 [cited by examiner]
WO 2004049538A2 · 2004 [cited by applicant]